X-ray observations and nuclear physics of GW-driven r-modes

Size: px
Start display at page:

Download "X-ray observations and nuclear physics of GW-driven r-modes"

Transcription

1 X-ray observations and nuclear physics of GW-driven r-modes Wynn Ho University of Southampton, UK Nils Andersson Ian Jones University of Southampton, UK Nathalie Degenaar University of Michigan, USA Bryn Haskell University of Melbourne, Australia Andersson, Jones, WH, 2014, MNRAS, 442, 1786 Haskell, Degenaar, WH, 2012, MNRAS, 424, 93 WH, Andersson, Haskell, 2011, PRL, 107, CompOSE and NewCompStar WG November 2014

2 Possible detection of r-mode oscillation in LMXBs Fluid oscillation in rotating stars with o inertial frequency (whole star variation): = (4/3) s o corotating frequency (hot spot modulation): = (2/3) s Oscillation observed in two LMXBs (Strohmayer & Mahmoodifar 2014a,b) o XTE J during accretion outburst = s ( s = 435 Hz) o 4U during nuclear superburst = s if r-mode ( s = 582 Hz) Owen+ Andersson, Jones, WH, MNRAS, 442, 1786 (2014): o Relativistic corrections to mode frequency (see also Idrisy, Jones+ 2014) o Observed oscillation amplitude ( ) and spin evolution (spin-up) inconsistent with r-mode theory for XTE J (and 4U ?)

3 LMXBs R-mode instability and emission of gravitational waves Fluid oscillation in rotating stars Generically unstable: GW emission drives r-mode growth (Andersson 1998; Friedman & Morsink 1998) Viscosity damps r-mode o shear viscosity at low temperature o bulk viscosity at high temperature R-mode (in)stability criterion: Owen+ Andersson & Kokkotas (2001) t gw ( s ) = t visc ( s, T)

4 Physics of r-mode (in)stability Unstable r-mode (good for GWs) o spin-temperature evolution limit cycle w/ short time in instability window (Levin 1999; Bondarescu et al 2007) o cannot produce high s Stable r-mode (bad for GWs) o crustal physics mode resonance with elastic crust (Levin & Ushomirsky 2001) o high viscosity at high T superfluid-suppressed hyperon bulk viscosity (Haskell & Andersson 2010) but pulsar spin-down vs. observed s = 716 Hz o superfluid mutual friction e - scatter off sf vortices (weak/strong gap) (Lindblom & Mendell 2000; Haskell+ 2009, 2014) extra friction from vortex-fluxtube interaction? o superfluid phonons (Manuel & Tolos 2013; Manuel, Tolos+ 2013) o magnetic field shortens VBL B > G to stabilize (Mendell 2001)

5 Physics of r-mode (in)stability Unstable r-mode (good for GWs) o spin-temperature evolution limit cycle w/ short time in instability window (Levin 1999; Bondarescu et al 2007) o cannot produce high s no crust Stable r-mode (bad for GWs) o crustal physics mode resonance with elastic crust (Levin & Ushomirsky 2001) o high viscosity at high T superfluid-suppressed hyperon bulk viscosity (Haskell & Andersson 2010) but pulsar spin-down vs. observed s = 716 Hz o superfluid mutual friction e - scatter off sf vortices (weak/strong gap) (Lindblom & Mendell 2000; Haskell+ 2009, 2014) extra friction from vortex-fluxtube interaction? o superfluid phonons (Manuel & Tolos 2013; Manuel, Tolos+ 2013) realistic crust rigid crust o magnetic field shortens VBL B > G to stabilize (Mendell 2001)

6 Physics of r-mode (in)stability Unstable r-mode (good for GWs) o spin-temperature evolution limit cycle w/ short time in instability window (Levin 1999; Bondarescu et al 2007) o cannot produce high s Stable r-mode (bad for GWs) o crustal physics mode resonance with elastic crust (Levin & Ushomirsky 2001) o high viscosity at high T superfluid-suppressed hyperon bulk viscosity (Haskell & Andersson 2010) but pulsar spin-down vs. observed s = 716 Hz o superfluid mutual friction e - scatter off sf vortices (weak/strong gap) (Lindblom & Mendell 2000; Haskell+ 2009, 2014) extra friction from vortex-fluxtube interaction? o superfluid phonons (Manuel & Tolos 2013; Manuel, Tolos+ 2013) o magnetic field shortens VBL B > G to stabilize (Mendell 2001)

7 Observations and physics of r-modes RXTE Oscillations (non-spin) observed in NSs LIGO R-mode/GW sources counter to expectations R-mode instability window is uncertain Rich nuclear physics arena o window shape: crust-core transition/elasticity superfluidity (critical temperature, hyperons, mutual friction, phonons) (see, e.g., recent works by Gusakov+) magnetic field (damping and strength) non-linearity and saturation EOS (see Vidana 2012; Wen+2012) exotica (strange matter, quarks) o core temperature estimates: envelope composition thermal conductivity neutrino emission Weber 2005

Neutron stars as laboratories for exotic physics

Neutron stars as laboratories for exotic physics Ian Jones Neutron stars as laboratories for exotic physics 1/20 Neutron stars as laboratories for exotic physics Ian Jones D.I.Jones@soton.ac.uk General Relativity Group, Southampton University Context

More information

Gravitational waves from neutron stars binaries: accuracy and tidal effects in the late inspiral S. Bernuzzi TPI-PAF FSU Jena / SFB-TR7

Gravitational waves from neutron stars binaries: accuracy and tidal effects in the late inspiral S. Bernuzzi TPI-PAF FSU Jena / SFB-TR7 Gravitational waves from neutron stars binaries: accuracy and tidal effects in the late inspiral S. Bernuzzi TPI-PAF FSU Jena / SFB-TR7 M. Thierfelder, SB, & B.Bruegmann, PRD 84 044012 (2011) SB, MT, &

More information

Fridolin Weber San Diego State University San Diego, California USA

Fridolin Weber San Diego State University San Diego, California USA Fridolin Weber San Diego State University San Diego, California USA IAU Symposium 291 Neutron Stars and Pulsars: Challenges and OpportuniEes afer 80 years IAU General Assembly XXVIII 20-31 August 2012,

More information

Lecture 14. Introduction to the Sun

Lecture 14. Introduction to the Sun Lecture 14 Introduction to the Sun ALMA discovers planets forming in a protoplanetary disc. Open Q: what physics do we learn about the Sun? 1. Energy - nuclear energy - magnetic energy 2. Radiation - continuum

More information

Magnetic dynamics driven by spin current

Magnetic dynamics driven by spin current Magnetic dynamics driven by spin current Sergej O. Demokritov University of Muenster, Germany Giant magnetoresistance Spin current Group of NonLinear Magnetic Dynamics Charge current vs spin current Electron:

More information

Instability, dispersion management, and pattern formation in the superfluid flow of a BEC in a cylindrical waveguide

Instability, dispersion management, and pattern formation in the superfluid flow of a BEC in a cylindrical waveguide Instability, dispersion management, and pattern formation in the superfluid flow of a BEC in a cylindrical waveguide Michele Modugno LENS & Dipartimento di Fisica, Università di Firenze, Italy Workshop

More information

Department of Physics University of Wisconsin-Milwaukee Phone: (414) 229-2590 E-mail: chang65@uwm.edu Milwaukee, WI 53201

Department of Physics University of Wisconsin-Milwaukee Phone: (414) 229-2590 E-mail: chang65@uwm.edu Milwaukee, WI 53201 Philip Chang Contact Information Education Department of Physics University of Wisconsin-Milwaukee Phone: (414) 229-2590 PO Box 413 E-mail: chang65@uwm.edu Milwaukee, WI 53201 University of California

More information

Low-Mass X-Ray Binary Models for Ellipticals NGC3379 and NGC4278

Low-Mass X-Ray Binary Models for Ellipticals NGC3379 and NGC4278 Low-Mass X-Ray Binary Models for Ellipticals NGC3379 and NGC4278 Tassos Fragos with V. Kalogera, K. Belczynski, G. Fabbiano et al. Department of Physics and Astronomy Northwestern University MODEST 7b

More information

Contents. Goldstone Bosons in 3He-A Soft Modes Dynamics and Lie Algebra of Group G:

Contents. Goldstone Bosons in 3He-A Soft Modes Dynamics and Lie Algebra of Group G: ... Vlll Contents 3. Textures and Supercurrents in Superfluid Phases of 3He 3.1. Textures, Gradient Energy and Rigidity 3.2. Why Superfuids are Superfluid 3.3. Superfluidity and Response to a Transverse

More information

Perfect Fluidity in Cold Atomic Gases?

Perfect Fluidity in Cold Atomic Gases? Perfect Fluidity in Cold Atomic Gases? Thomas Schaefer North Carolina State University 1 2 Hydrodynamics Long-wavelength, low-frequency dynamics of conserved or spontaneoulsy broken symmetry variables.

More information

Perfect Fluidity in Cold Atomic Gases?

Perfect Fluidity in Cold Atomic Gases? Perfect Fluidity in Cold Atomic Gases? Thomas Schaefer North Carolina State University 1 Elliptic Flow Hydrodynamic expansion converts coordinate space anisotropy to momentum space anisotropy Anisotropy

More information

Solar Ast ro p h y s ics

Solar Ast ro p h y s ics Peter V. Foukal Solar Ast ro p h y s ics Second, Revised Edition WI LEY- VCH WILEY-VCH Verlag Co. KCaA Contents Preface 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.1.1 2.1.2 2.2 2.2.1 2.2.2 2.2.3 2.3

More information

Chapter 9 Summary and outlook

Chapter 9 Summary and outlook Chapter 9 Summary and outlook This thesis aimed to address two problems of plasma astrophysics: how are cosmic plasmas isotropized (A 1), and why does the equipartition of the magnetic field energy density

More information

Perfect Fluids: From Nano to Tera

Perfect Fluids: From Nano to Tera Perfect Fluids: From Nano to Tera Thomas Schaefer North Carolina State University 1 2 Perfect Fluids sqgp (T=180 MeV) Neutron Matter (T=1 MeV) Trapped Atoms (T=0.1 nev) 3 Hydrodynamics Long-wavelength,

More information

7.2.4 Seismic velocity, attenuation and rock properties

7.2.4 Seismic velocity, attenuation and rock properties 7.2.4 Seismic velocity, attenuation and rock properties Rock properties that affect seismic velocity Porosity Lithification Pressure Fluid saturation Velocity in unconsolidated near surface soils (the

More information

Foreword. Acknowledgments. References 20

Foreword. Acknowledgments. References 20 Foreword Acknowledgments xv xvii Part I Compact Stars Dynamic stability of compact stars 3 G. S. Bisnovatyi-Kogan 1 Introduction 3 2 Early development of the theory of compact stars: 1931-1965 4 3 Criteria

More information

Mass transfer dynamics in white dwarf binary systems

Mass transfer dynamics in white dwarf binary systems Mass transfer dynamics in white dwarf binary systems In collaboration with: Stephan Rosswog & Marcus Brüggen EUROWD10, Tübingen, 2010 Numbers on Galactic WDs total number of WDs: 10 10 Napiwotzki (2009)

More information

Malcolm S. Longair. Galaxy Formation. With 141 Figures and 12 Tables. Springer

Malcolm S. Longair. Galaxy Formation. With 141 Figures and 12 Tables. Springer Malcolm S. Longair Galaxy Formation With 141 Figures and 12 Tables Springer Contents Part I Preliminaries 1. Introduction, History and Outline 3 1.1 Prehistory 3 1.2 The Theory of the Expanding Universe

More information

Indiana's Academic Standards 2010 ICP Indiana's Academic Standards 2016 ICP. map) that describe the relationship acceleration, velocity and distance.

Indiana's Academic Standards 2010 ICP Indiana's Academic Standards 2016 ICP. map) that describe the relationship acceleration, velocity and distance. .1.1 Measure the motion of objects to understand.1.1 Develop graphical, the relationships among distance, velocity and mathematical, and pictorial acceleration. Develop deeper understanding through representations

More information

Perfect Fluidity in Cold Atomic Gases?

Perfect Fluidity in Cold Atomic Gases? Perfect Fluidity in Cold Atomic Gases? Thomas Schaefer North Carolina State University 1 Hydrodynamics Long-wavelength, low-frequency dynamics of conserved or spontaneoulsy broken symmetry variables τ

More information

Comparison of flow regime transitions with interfacial wave transitions

Comparison of flow regime transitions with interfacial wave transitions Comparison of flow regime transitions with interfacial wave transitions M. J. McCready & M. R. King Chemical Engineering University of Notre Dame Flow geometry of interest Two-fluid stratified flow gas

More information

Orbital Dynamics coupled with Jahn-Teller phonons in Strongly Correlated Electron System

Orbital Dynamics coupled with Jahn-Teller phonons in Strongly Correlated Electron System The 5 th Scienceweb GCOE International Symposium 1 Orbital Dynamics coupled with Jahn-Teller phonons in Strongly Correlated Electron System Department of Physics, Tohoku University Joji Nasu In collaboration

More information

MOLECULAR DYNAMICS INVESTIGATION OF DEFORMATION RESPONSE OF THIN-FILM METALLIC NANOSTRUCTURES UNDER HEATING

MOLECULAR DYNAMICS INVESTIGATION OF DEFORMATION RESPONSE OF THIN-FILM METALLIC NANOSTRUCTURES UNDER HEATING NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2011, 2 (2), P. 76 83 UDC 538.97 MOLECULAR DYNAMICS INVESTIGATION OF DEFORMATION RESPONSE OF THIN-FILM METALLIC NANOSTRUCTURES UNDER HEATING I. S. Konovalenko

More information

Heating diagnostics with MHD waves

Heating diagnostics with MHD waves Heating diagnostics with MHD waves R. Erdélyi & Y. Taroyan Robertus@sheffield.ac.uk SP 2 RC, Department of Applied Mathematics, The University of Sheffield (UK) The solar corona 1860s coronium discovered

More information

Active noise control in practice: transformer station

Active noise control in practice: transformer station Active noise control in practice: transformer station Edwin Buikema 1 ; Fokke D. van der Ploeg 2 ; Jan H. Granneman 3 1, 2, 3 Peutz bv, Netherlands ABSTRACT Based on literature and extensive measurements

More information

Nuclear Magnetic Resonance (NMR) Spectroscopy

Nuclear Magnetic Resonance (NMR) Spectroscopy April 28, 2016 Exam #3: Graded exams on Tuesday! Final Exam Tuesday, May 10 th, 10:30 a.m. Room: Votey 207 (tentative) Review Session: Sunday, May 8 th, 4 pm, Kalkin 325 (tentative) Office Hours Next week:

More information

Gravitational self-force in the ultra-relativistic regime Chad Galley, California Institute of Technology

Gravitational self-force in the ultra-relativistic regime Chad Galley, California Institute of Technology Gravitational self-force in the ultra-relativistic regime Chad Galley, California Institute of Technology with Rafael Porto (IAS) arxiv: 1302.4486 v2 soon! (with details) Capra16; Dublin, Ireland; July

More information

Overdamped system response

Overdamped system response Second order system response. Im(s) Underdamped Unstable Overdamped or Critically damped Undamped Re(s) Underdamped Overdamped system response System transfer function : Impulse response : Step response

More information

Semester 2. Final Exam Review

Semester 2. Final Exam Review Semester 2 Final Exam Review Motion and Force Vocab Motion object changes position relative to a reference point. Speed distance traveled in a period of time. Velocity speed in a direction. Acceleration

More information

The simulation of machine tools can be divided into two stages. In the first stage the mechanical behavior of a machine tool is simulated with FEM

The simulation of machine tools can be divided into two stages. In the first stage the mechanical behavior of a machine tool is simulated with FEM 1 The simulation of machine tools can be divided into two stages. In the first stage the mechanical behavior of a machine tool is simulated with FEM tools. The approach to this simulation is different

More information

YSO Orion Molecular Cloud Aims Of Stahler & Bakk.N.R.T.P.R.T.T.

YSO Orion Molecular Cloud Aims Of Stahler & Bakk.N.R.T.P.R.T.T. Protobinaries von Cornelia Weber, Bakk.rer.nat. Overview Motivation Molecular Clouds Young Stellar Objects Multiplicity of YSO Orion Molecular Cloud Aims of my thesis Motivation Binary and Multiple system

More information

E. K. A. ADVANCED PHYSICS LABORATORY PHYSICS 3081, 4051 NUCLEAR MAGNETIC RESONANCE

E. K. A. ADVANCED PHYSICS LABORATORY PHYSICS 3081, 4051 NUCLEAR MAGNETIC RESONANCE E. K. A. ADVANCED PHYSICS LABORATORY PHYSICS 3081, 4051 NUCLEAR MAGNETIC RESONANCE References for Nuclear Magnetic Resonance 1. Slichter, Principles of Magnetic Resonance, Harper and Row, 1963. chapter

More information

Physics in Entertainment and the Arts

Physics in Entertainment and the Arts Physics in Entertainment and the Arts Chapter VII Wave Transfer and Waves incident on a rigid boundary almost completely reflect Almost all the wave s energy is reflected back the way it came Waves incident

More information

The Physics of Neutron Stars

The Physics of Neutron Stars The Physics of Neutron Stars Alfred Whitehead Physics 518, Fall 009 The Problem Describe how a white dwarf evolves into a neutron star. Compute the neutron degeneracy pressure and balance the gravitational

More information

ART 269 3D Animation Fundamental Animation Principles and Procedures in Cinema 4D

ART 269 3D Animation Fundamental Animation Principles and Procedures in Cinema 4D ART 269 3D Animation Fundamental Animation Principles and Procedures in Cinema 4D Components Tracks An animation track is a recording of a particular type of animation; for example, rotation. Some tracks

More information

Nonlinear evolution of unstable fluid interface

Nonlinear evolution of unstable fluid interface Nonlinear evolution of unstable fluid interface S.I. Abarzhi Department of Applied Mathematics and Statistics State University of New-York at Stony Brook LIGHT FLUID ACCELERATES HEAVY FLUID misalignment

More information

Positive Feedback and Oscillators

Positive Feedback and Oscillators Physics 3330 Experiment #6 Fall 1999 Positive Feedback and Oscillators Purpose In this experiment we will study how spontaneous oscillations may be caused by positive feedback. You will construct an active

More information

Notes on Polymer Rheology Outline

Notes on Polymer Rheology Outline 1 Why is rheology important? Examples of its importance Summary of important variables Description of the flow equations Flow regimes - laminar vs. turbulent - Reynolds number - definition of viscosity

More information

LISA reflectors, Advantages and Disadvantages

LISA reflectors, Advantages and Disadvantages 39th Winter Meeting FP, Canfranc 9-ii-2011 A. Lobo, Gravitational Waves 1 39th Winter Meeting FP, Canfranc 9-ii-2011 A. Lobo, Gravitational Waves 2 Some PSRB 1913+16 parameters Character Keplerian Post-Keplerian

More information

8.1 Radio Emission from Solar System objects

8.1 Radio Emission from Solar System objects 8.1 Radio Emission from Solar System objects 8.1.1 Moon and Terrestrial planets At visible wavelengths all the emission seen from these objects is due to light reflected from the sun. However at radio

More information

Temperature anisotropy in the solar wind

Temperature anisotropy in the solar wind Introduction Observations Simulations Summary in the solar wind Petr Hellinger Institute of Atmospheric Physics & Astronomical Institute AS CR, Prague, Czech Republic Kinetic Instabilities, Plasma Turbulence

More information

Heating & Cooling in Molecular Clouds

Heating & Cooling in Molecular Clouds Lecture 8: Cloud Stability Heating & Cooling in Molecular Clouds Balance of heating and cooling processes helps to set the temperature in the gas. This then sets the minimum internal pressure in a core

More information

VCO Phase noise. Characterizing Phase Noise

VCO Phase noise. Characterizing Phase Noise VCO Phase noise Characterizing Phase Noise The term phase noise is widely used for describing short term random frequency fluctuations of a signal. Frequency stability is a measure of the degree to which

More information

on Recent Developments on Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories

on Recent Developments on Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories Thirteenth Marcel Grossman Meeting on Recent Developments on Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories ON GENERAL RELATIVISTIC UNIFORMLY ROTATING WHITE

More information

Condensates in Neutron Star Interiors

Condensates in Neutron Star Interiors Condensates in Neutron Star Interiors Vatsal Dwivedi submitted as a term essay for Phys 569 : Emergent States of Matter Dec 19, 2012 Abstract The pulsars, now identified as neutron stars, are one of the

More information

Neutron Stars. How were neutron stars discovered? The first neutron star was discovered by 24-year-old graduate student Jocelyn Bell in 1967.

Neutron Stars. How were neutron stars discovered? The first neutron star was discovered by 24-year-old graduate student Jocelyn Bell in 1967. Neutron Stars How were neutron stars discovered? The first neutron star was discovered by 24-year-old graduate student Jocelyn Bell in 1967. Using a radio telescope she noticed regular pulses of radio

More information

Wave-particle and wave-wave interactions in the Solar Wind: simulations and observations

Wave-particle and wave-wave interactions in the Solar Wind: simulations and observations Wave-particle and wave-wave interactions in the Solar Wind: simulations and observations Lorenzo Matteini University of Florence, Italy In collaboration with Petr Hellinger, Simone Landi, and Marco Velli

More information

In science, energy is the ability to do work. Work is done when a force causes an

In science, energy is the ability to do work. Work is done when a force causes an What is energy? In science, energy is the ability to do work. Work is done when a force causes an object to move in the direction of the force. Energy is expressed in units of joules (J). A joule is calculated

More information

California Standards Grades 9 12 Boardworks 2009 Science Contents Standards Mapping

California Standards Grades 9 12 Boardworks 2009 Science Contents Standards Mapping California Standards Grades 912 Boardworks 2009 Science Contents Standards Mapping Earth Sciences Earth s Place in the Universe 1. Astronomy and planetary exploration reveal the solar system s structure,

More information

Voltage. Oscillator. Voltage. Oscillator

Voltage. Oscillator. Voltage. Oscillator fpa 147 Week 6 Synthesis Basics In the early 1960s, inventors & entrepreneurs (Robert Moog, Don Buchla, Harold Bode, etc.) began assembling various modules into a single chassis, coupled with a user interface

More information

Flow Sensors. - mass flow rate - volume flow rate - velocity. - stream line parabolic velocity profile - turbulent vortices. Methods of measurement

Flow Sensors. - mass flow rate - volume flow rate - velocity. - stream line parabolic velocity profile - turbulent vortices. Methods of measurement Flow Sensors Flow - mass flow rate - volume flow rate - velocity Types of flow - stream line parabolic velocity profile - turbulent vortices Methods of measurement - direct: positive displacement (batch

More information

Using light scattering method to find The surface tension of water

Using light scattering method to find The surface tension of water Experiment (8) Using light scattering method to find The surface tension of water The aim of work: The goals of this experiment are to confirm the relationship between angular frequency and wave vector

More information

Lecture L22-2D Rigid Body Dynamics: Work and Energy

Lecture L22-2D Rigid Body Dynamics: Work and Energy J. Peraire, S. Widnall 6.07 Dynamics Fall 008 Version.0 Lecture L - D Rigid Body Dynamics: Work and Energy In this lecture, we will revisit the principle of work and energy introduced in lecture L-3 for

More information

WIMP dark matter and the isotropic radio signal Roberto A. Lineros R. Instituto de Física Corpuscular - CSIC/U. Valencia @Roberto_Lineros Outline Introduction Cosmic ray propagation Synchrotron emission

More information

AS PHYSICS (7407/1) Paper 1. Specimen 2014 Morning Time allowed: 1 hour 30 minutes. SPECIMEN MATERIAL v1.1

AS PHYSICS (7407/1) Paper 1. Specimen 2014 Morning Time allowed: 1 hour 30 minutes. SPECIMEN MATERIAL v1.1 SPECIMEN MATERIAL v1.1 AS PHYSICS (7407/1) Paper 1 Specimen 2014 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: a pencil a ruler a calculator a data and formulae booklet.

More information

Theory of Light Scattering in Condensed Matter

Theory of Light Scattering in Condensed Matter Proceedings of the First Joint USA USSR Symposium Theory of Light Scattering in Condensed Matter Edited by Bernard Bendow Solid State Sciences Division Rome Air Development Center Hanscom AFB, Massachusetts

More information

Pulsed Fourier Transform NMR The rotating frame of reference. The NMR Experiment. The Rotating Frame of Reference.

Pulsed Fourier Transform NMR The rotating frame of reference. The NMR Experiment. The Rotating Frame of Reference. Pulsed Fourier Transform NR The rotating frame of reference The NR Eperiment. The Rotating Frame of Reference. When we perform a NR eperiment we disturb the equilibrium state of the sstem and then monitor

More information

Understanding Power Impedance Supply for Optimum Decoupling

Understanding Power Impedance Supply for Optimum Decoupling Introduction Noise in power supplies is not only caused by the power supply itself, but also the load s interaction with the power supply (i.e. dynamic loads, switching, etc.). To lower load induced noise,

More information

The Higgs Boson. Linac08 Victoria BC, Canada CANADA S NATIONAL LABORATORY FOR PARTICLE AND NUCLEAR PHYSICS

The Higgs Boson. Linac08 Victoria BC, Canada CANADA S NATIONAL LABORATORY FOR PARTICLE AND NUCLEAR PHYSICS CANADA S NATIONAL LABORATORY FOR PARTICLE AND NUCLEAR PHYSICS Owned and operated as a joint venture by a consortium of Canadian universities via a contribution through the National Research Council Canada

More information

Power System Harmonics

Power System Harmonics Pacific Gas and Electric Company Power System Harmonics What are power system harmonics? Ideally, voltage and current waveforms are perfect sinusoids. However, because of the increased popularity of electronic

More information

Modeling and Simulations of Cavitating and Bubbly Flows

Modeling and Simulations of Cavitating and Bubbly Flows Muon Collider/Neutrino Factory Collaboration Meeting Riverside, California, January 27-31, 2004 Modeling and Simulations of Cavitating and Bubbly Flows Roman Samulyak Tianshi Lu, Yarema Prykarpatskyy Center

More information

Use the following image to answer the next question. 1. Which of the following rows identifies the electrical charge on A and B shown above?

Use the following image to answer the next question. 1. Which of the following rows identifies the electrical charge on A and B shown above? Old Science 30 Physics Practice Test A on Fields and EMR Test Solutions on the Portal Site Use the following image to answer the next question 1. Which of the following rows identifies the electrical charge

More information

How To Understand The Measurement Process

How To Understand The Measurement Process April 24, 2015 Exam #3: Solution Key online now! Graded exams by Monday! Final Exam Monday, May 4 th, 10:30 a.m. Room: Perkins 107 1 A Classical Perspective A classical view will help us understand the

More information

FLUID FLOW STREAMLINE LAMINAR FLOW TURBULENT FLOW REYNOLDS NUMBER

FLUID FLOW STREAMLINE LAMINAR FLOW TURBULENT FLOW REYNOLDS NUMBER VISUAL PHYSICS School of Physics University of Sydney Australia FLUID FLOW STREAMLINE LAMINAR FLOW TURBULENT FLOW REYNOLDS NUMBER? What type of fluid flow is observed? The above pictures show how the effect

More information

Laminar and Turbulent flow. Flow Sensors. Reynolds Number. Thermal flow Sensor. Flow and Flow rate. R = Mass Flow controllers

Laminar and Turbulent flow. Flow Sensors. Reynolds Number. Thermal flow Sensor. Flow and Flow rate. R = Mass Flow controllers Flow and Flow rate. Laminar and Turbulent flow Laminar flow: smooth, orderly and regular Mechanical sensors have inertia, which can integrate out small variations due to turbulence Turbulent flow: chaotic

More information

Extra-solar massive planets with small semi-major axes?

Extra-solar massive planets with small semi-major axes? Monografías de la Real Academia de Ciencias de Zaragoza. 25: 115 120, (2004). Extra-solar massive planets with small semi-major axes? S. Fernández, D. Giuliodori and M. A. Nicotra Observatorio Astronómico.

More information

NDSU Department of Physics. Graduate Student Handbook

NDSU Department of Physics. Graduate Student Handbook NDSU Department of Physics Graduate Student Handbook Department of Physics North Dakota State University Fargo, ND 58108-6050 History Draft: August 24, 2014 Table of Contents 1. Contact 2 2. Graduate Program

More information

Masses in Atomic Units

Masses in Atomic Units Nuclear Composition - the forces binding protons and neutrons in the nucleus are much stronger (binding energy of MeV) than the forces binding electrons to the atom (binding energy of ev) - the constituents

More information

Physics 9e/Cutnell. correlated to the. College Board AP Physics 1 Course Objectives

Physics 9e/Cutnell. correlated to the. College Board AP Physics 1 Course Objectives Physics 9e/Cutnell correlated to the College Board AP Physics 1 Course Objectives Big Idea 1: Objects and systems have properties such as mass and charge. Systems may have internal structure. Enduring

More information

Part IV. Conclusions

Part IV. Conclusions Part IV Conclusions 189 Chapter 9 Conclusions and Future Work CFD studies of premixed laminar and turbulent combustion dynamics have been conducted. These studies were aimed at explaining physical phenomena

More information

Contents. Microfluidics - Jens Ducrée Physics: Fluid Dynamics 1

Contents. Microfluidics - Jens Ducrée Physics: Fluid Dynamics 1 Contents 1. Introduction 2. Fluids 3. Physics of Microfluidic Systems 4. Microfabrication Technologies 5. Flow Control 6. Micropumps 7. Sensors 8. Ink-Jet Technology 9. Liquid Handling 10.Microarrays 11.Microreactors

More information

A: zero everywhere. B: positive everywhere. C: negative everywhere. D: depends on position.

A: zero everywhere. B: positive everywhere. C: negative everywhere. D: depends on position. A string is clamped at both ends and then plucked so that it vibrates in a standing wave between two extreme positions a and c. (Let upward motion correspond to positive velocities.) When the

More information

Basic Equations, Boundary Conditions and Dimensionless Parameters

Basic Equations, Boundary Conditions and Dimensionless Parameters Chapter 2 Basic Equations, Boundary Conditions and Dimensionless Parameters In the foregoing chapter, many basic concepts related to the present investigation and the associated literature survey were

More information

Advantages of Auto-tuning for Servo-motors

Advantages of Auto-tuning for Servo-motors Advantages of for Servo-motors Executive summary The same way that 2 years ago computer science introduced plug and play, where devices would selfadjust to existing system hardware, industrial motion control

More information

Nonlinear Analysis Using Femap with NX Nastran

Nonlinear Analysis Using Femap with NX Nastran Nonlinear Analysis Using Femap with NX Nastran Chip Fricke, Principal Applications Engineer, Agenda Nonlinear Analysis Using Femap with NX Nastran Who am I? Overview of Nonlinear Analysis Comparison of

More information

Quantum control of individual electron and nuclear spins in diamond lattice

Quantum control of individual electron and nuclear spins in diamond lattice Quantum control of individual electron and nuclear spins in diamond lattice Mikhail Lukin Physics Department, Harvard University Collaborators: L.Childress, M.Gurudev Dutt, J.Taylor, D.Chang, L.Jiang,A.Zibrov

More information

Overview of Topics. Stress-Strain Behavior in Concrete. Elastic Behavior. Non-Linear Inelastic Behavior. Stress Distribution.

Overview of Topics. Stress-Strain Behavior in Concrete. Elastic Behavior. Non-Linear Inelastic Behavior. Stress Distribution. Stress-Strain Behavior in Concrete Overview of Topics EARLY AGE CONCRETE Plastic shrinkage shrinkage strain associated with early moisture loss Thermal shrinkage shrinkage strain associated with cooling

More information

COMPUTATIONAL TOOLS FOR SIGNAL PROCESSING APPLICATIONS FROM INDUSTRY AND BIOINFORMATICS 02/2006

COMPUTATIONAL TOOLS FOR SIGNAL PROCESSING APPLICATIONS FROM INDUSTRY AND BIOINFORMATICS 02/2006 Higher Institute of Technologies and Applied Sciences InSTEC COMPUTATIONAL TOOLS FOR SIGNAL PROCESSING APPLICATIONS FROM INDUSTRY AND BIOINFORMATICS 02/2006 Institute Site (Main CAMPUS) Research fields

More information

The Orbital Period Distribution of Wide Binary Millisecond Pulsars

The Orbital Period Distribution of Wide Binary Millisecond Pulsars Binary Radio Pulsars ASP Conference Series, Vol. 328, 2005 F. A. Rasio and I. H. Stairs The Orbital Period Distribution of Wide Binary Millisecond Pulsars B. Willems Northwestern University, Department

More information

Dinamica del Gas nelle Galassie II. Star formation

Dinamica del Gas nelle Galassie II. Star formation Dinamica del Gas nelle Galassie II. Star formation Overview on ISM Molecular clouds: composition and properties. Plasmas Charge neutrality, infinite conductivity; Field freezing; Euler equation with magnetic

More information

FEED MANUFACTURING TECHNOLOGY - ISSUES AND CHALLENGES

FEED MANUFACTURING TECHNOLOGY - ISSUES AND CHALLENGES FEED MANUFACTURING TECHNOLOGY - ISSUES AND CHALLENGES DENNIS FORTE SUMMARY The handling of Feed Pellets during storage at the Mill, transport and transfer to bins on the farm has a direct impact upon the

More information

Acoustics of tachyon Fermi gas

Acoustics of tachyon Fermi gas Acoustics of tachyon Fermi gas arxiv:1103.2276v4 [hep-ph] 3 Jun 2011 Ernst Trojan and George V. Vlasov Moscow Institute of Physics and Technology PO Box 3, Moscow, 125080, Russia June 6, 2011 Abstract

More information

Solar Energy. Outline. Solar radiation. What is light?-- Electromagnetic Radiation. Light - Electromagnetic wave spectrum. Electromagnetic Radiation

Solar Energy. Outline. Solar radiation. What is light?-- Electromagnetic Radiation. Light - Electromagnetic wave spectrum. Electromagnetic Radiation Outline MAE 493R/593V- Renewable Energy Devices Solar Energy Electromagnetic wave Solar spectrum Solar global radiation Solar thermal energy Solar thermal collectors Solar thermal power plants Photovoltaics

More information

Section 6 Raman Scattering (lecture 10)

Section 6 Raman Scattering (lecture 10) Section 6 Scattering (lecture 10) Previously: Quantum theory of atoms / molecules Quantum Mechanics Valence Atomic and Molecular Spectroscopy Scattering The scattering process Elastic (Rayleigh) and inelastic

More information

Co-Simulation and modal reduction for multifield problems in multibody dynamics

Co-Simulation and modal reduction for multifield problems in multibody dynamics Co-Simulation and modal reduction for multifield problems in multibody dynamics 7th Workshop on Descriptor Systems March 2005, Paderborn Martin Arnold [martin.arnold@mathematik.uni-halle.de] Martin Luther

More information

Chapter 5. System security and ancillary services

Chapter 5. System security and ancillary services Chapter 5. System security and ancillary services 1 Introduction Markets for electrical energy can function only if they are supported by the infrastructure of a power system. System should continue to

More information

1 Introduction. 1.1 Historical Perspective

1 Introduction. 1.1 Historical Perspective j1 1 Introduction 1.1 Historical Perspective The invention of scanning probe microscopy is considered one of the major advances in materials science since 1950 [1, 2]. Scanning probe microscopy includes

More information

Accuracy and Tuning in CNC Machine Tools

Accuracy and Tuning in CNC Machine Tools FAMA Technical Article/001 Accuracy and Tuning in CNC Machine Tools Introduction: This article explains how it is possible to achieve a better performance on High Speed CNC Machine Tools. Performance is

More information

INNOVATIVE PLASTICS HIGH & LOW SHEAR RATE RHEOLOGY

INNOVATIVE PLASTICS HIGH & LOW SHEAR RATE RHEOLOGY INNOVATIVE PLASTICS HIGH & LOW SHEAR RATE RHEOLOGY A SABIC COMPANY Innovative Plastics is a strategic business unit of SABIC. Founded in 1976, SABIC is today the first public, global multinational enterprise

More information

Energy and Flow Measurement for Hydronic Systems

Energy and Flow Measurement for Hydronic Systems Energy and Flow Measurement for Hydronic Systems Presented By: George Szyszko Applications Consultant MCR for ONICON Incorporated Why Measure Thermal Energy? To control something, you must first measure

More information

Gravitational waves from compact object binaries

Gravitational waves from compact object binaries Gravitational waves from compact object binaries Laboratoire Univers et Théories Observatoire de Paris / CNRS aligo, avirgo, KAGRA, elisa, ( DECIGO, ET,... ( Main sources of gravitational waves (GW) elisa

More information

DYNAMIC ANALYSIS ON STEEL FIBRE

DYNAMIC ANALYSIS ON STEEL FIBRE International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 2, March-April 2016, pp. 179 184, Article ID: IJCIET_07_02_015 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=2

More information

Lecture 8 : Dynamic Stability

Lecture 8 : Dynamic Stability Lecture 8 : Dynamic Stability Or what happens to small disturbances about a trim condition 1.0 : Dynamic Stability Static stability refers to the tendency of the aircraft to counter a disturbance. Dynamic

More information

w o r k o G f E A x - p r S i t n c e Elegance and Strength BBR HiAm CONA Strand Stay Cable Damping Systems

w o r k o G f E A x - p r S i t n c e Elegance and Strength BBR HiAm CONA Strand Stay Cable Damping Systems e o b a l N e t w o r k l o G f E A x - p r S i t n c e 1 9 4 4 - s Elegance and Strength BBR HiAm CONA Strand Stay Cable Damping Systems 1 Cable vibration and damping Despite the wide use of cable-stayed

More information

Be Stars. By Carla Morton

Be Stars. By Carla Morton Be Stars By Carla Morton Index 1. Stars 2. Spectral types 3. B Stars 4. Be stars 5. Bibliography How stars are formed Stars are composed of gas Hydrogen is the main component of stars. Stars are formed

More information

DISTANCE DEGREE PROGRAM CURRICULUM NOTE:

DISTANCE DEGREE PROGRAM CURRICULUM NOTE: Bachelor of Science in Electrical Engineering DISTANCE DEGREE PROGRAM CURRICULUM NOTE: Some Courses May Not Be Offered At A Distance Every Semester. Chem 121C General Chemistry I 3 Credits Online Fall

More information

Coronal Heating Problem

Coronal Heating Problem Mani Chandra Arnab Dhabal Raziman T V PHY690C Course Project Indian Institute of Technology Kanpur Outline 1 2 3 Source of the energy Mechanism of energy dissipation Proposed mechanisms Regions of the

More information

Distributed Solar-Thermal-Electric Generation and Storage Seth R. Sanders, Artin Der Minassians, Mike He EECS Department, UC Berkeley

Distributed Solar-Thermal-Electric Generation and Storage Seth R. Sanders, Artin Der Minassians, Mike He EECS Department, UC Berkeley Distributed Solar-Thermal-Electric Generation and Storage Seth R. Sanders, Artin Der Minassians, Mike He EECS Department, UC Berkeley Technology: rooftop solar thermal collector + thermal energy storage

More information

Vibration Test for Large Lithium-ion Battery Assemblies on UN Transportation Manual of Tests & Criteria JARI

Vibration Test for Large Lithium-ion Battery Assemblies on UN Transportation Manual of Tests & Criteria JARI Vibration Test for Large Lithium-ion Battery Assemblies on UN Transportation Manual of Tests & Criteria JARI Battery Transportation Working Group Working Group on the Testing of and Criteria for Lithium

More information

OPA Meeting 21 September 2005, 9:00 10:00 am

OPA Meeting 21 September 2005, 9:00 10:00 am OPA Meeting 21 September 2005, 9:00 10:00 am p, Civil il Engineering i Department, t University it of Toronto STABILITY OF PRICE AND POWER PRODUCTION OF CLEANER ELECTRICITY IN ONTARIO Optimisation Best

More information