Bright transiting exoplanets from the KELT Survey

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1 Bright transiting exoplanets from the KELT Survey KELT-South in Sutherland, South Africa Discovery light curve for KELT-2Ab Observing 60% of the sky RV curve for KELT-6b

2 Discovery of hot Jovian planets transiting bright (8 < V < 10) host stars Transmission spectroscopy Emission Spectroscopy Planet emission/reflection phase curve Albedo measurements (optical) Energy balance from secondary eclipses (infrared) Rossiter/McLaughlin Effect Increasing value for detailed characterization

3 The Frequency of Giant Planets Around Low-Mass Stars Justine LANNIER, IPAG/CNRS, Grenoble (France) MASSIVE: M-dwArfs Statistical Survey for direct Imaging of massive Exoplanets with NACO 58 M dwarfs age<120myr d<75pc Ks<12

4 The Frequency of Giant Planets Around Low-Mass Stars Justine LANNIER, IPAG/CNRS, Grenoble (France) Bayesian Analysis with a natural conjugate prior Fraction of MASSIVE stars that host at least 1 95% CL for [3,50]Mjup [10,300]AU +5,4 3, 7 2,2% Comparison between MASSIVE (M dwarfs, in blue), and A-F stars (Rameau et al. 2013, in green)

5 EXOPLANETS AROUND BINARY STARS A BRIEF REVIEW Mustafa Burak Doğruel Ankara University Planets orbiting just one component of the binary S-type orbit Circumprimary Planets orbiting the center of mass of the binary P-type orbit Circumbinary While the distribution of planets in wide ( 100AU) systems is identical to that of planets around single stars, the characteristics of exoplanets in close binaries are significantly different. The main trend seems to be that planetary masses increase with decreasing stellar separation. The first exoplanet in a close binary γ Cephei Today more than 60 exoplanets are known to inhabit multiple star systems (Roell et al., 2012). Results of radial velocity surveys 20% of exoplanets reside in stellar binaries. Most of them have wide separation (hundres of AU), some have short periods ( 100 yr). All are on stable orbits. Both power law and the lognormal fit lead to the conclusion that the mass distribution of exoplanets in multiple stellar systems tend to have higher planetary masses than the mass distribution of exoplanets around single stars.

6 First confirmed planet of P-type orbit DP Leo Most circumbinary planets have been detected by the Kepler space telescope. So far Kepler has discovered 7 circumbinary systems (Kepler-47 has multiple planets) all of which are around eclipsing binaries and nearly coplanar. Aside from Kepler, there have been planets discovered by the radial-velocity method and through eclipse timing variations (O-C analysis). All known circumbinary planets are on long term stable orbits. Two trends emerge in the orbital distribution; All planets reside close to the stability limit, planets closer to the binary are dynamically unstable. There are no claims of planets transiting very short period binaries (< 5 days) The Case of MR Del MR Del is an Algol type eclipsing binary of K0 spectral type. It is listed as a candidate circumbinary planet hosting binary by Pribulla et al within the scope of DWARF project. I collected all minima times available in the literature and fitted its O-C curve using light-time effect (LITE) formulation by Irwin (1959). I found that there might be a circumbinary planet having a mass function of 1.92 M Jupiter and a period of ~12 years in an eccentric (e=0.51) orbit.

7 The Large Binocular Telescope Interferometer (LBTI) Rafael Millan- Gabet LBTI NASA Project Scien&st Connec&ng planets with disks Nulling interferometry and high contrast imaging at the LBT, Mt Graham, AZ. NASA funded. P.I. Phil Hinz, Univ. of Arizona. Measure exozodi emission, to inform the design of a future NWNH mission, Direct exoplanet imaging and spectroscopic characterizajon (P.I. Andy Skemer, UA). Presence at this Workshop Wed Jul 23 Talk: Theory and Early Results from the Large Binocular Telescope Interferometer Denis Defrere (LBTI Instrument ScienJst, UA) mini- Poster (handouts available at P- 40): Target SelecJon for the LBTI Hunt for Observable Signatures of Terrestrial Systems (HOSTS) Alycia Weinberger, Aki Roberge, and the HOSTS Science Team Poster (P- 40): Sagan Summer Worshop - July Exozodi Modelling for the LBTI Mark WyaR, Grant Kennedy, and the HOSTS Science Team

8 Planets in MYNDs giant planets around Massive, Young, Nearby and Dusty stars Julien RAMEAU, IPAG/CNRS, France grenoble.fr From one object NaCo (L, 2012) GPI (2013) HD Rameau et al. (2013b, 2013c, ApJL); Galicher et al. (2014, A&A) A8, d= 90 pc, LCC, 17 Myr Meshkat et al.(2013a) 5 M 62 AU Inner edge of the outer belt? Moor et al.(2013) H-L = 3.6±1.0 & K 1 -L =2.4±0.7 mag, dust? FormaWon? MigraWon? HD 95b 50 AU

9 Planets in MYNDs giant planets around Massive, Young, Nearby and Dusty stars Julien RAMEAU, IPAG/CNRS, France grenoble.fr to the full population Sta,s,cal analysis Rameau et al. (2013a, A&A) Detection probability L =10 0.5, 11.5 mag & 1 Det. probability > 50% for a 5Mj > 30 AU f = % at 68% CL between [1,13] & [5,1000] AU GI with direct collapse not favored Need xao systems to start to constrain CA planets