PX437 EXOPLANETS Outline 1.Before Exoplanets 2.Detecting exoplanets 1.Direct imaging 2.Reflex Motion of Star 3.Transiting exoplanets 3.Planet Formation 4.Extra-Terrestial Life

PX437 EXOPLANETS Sherwood observatory Planetary transits

PX437 EXOPLANETS First transiting exoplanet: HD209458b Henry et al. 2000, ApJ 529, L41 Charbonneau et al. 2000, ApJ 529, L45

PX437 EXOPLANETS HD209458b with HST Brown et al. 2001, ApJ 529, L41

PX437 EXOPLANETS Wide Angle Search for Planets (WASP)

PX437 EXOPLANETS Charbonneau et al 2007, ApJ 658, 1327

PX437 EXOPLANETS Horne 2007

PX437 EXOPLANETS Detection of sodium in the atmosphere of HD209458b Charbonneau et al ApJ 568, 377

PX437 EXOPLANETS Detection of sodium in the atmosphere of HD209458b Charbonneau et al ApJ 568, 377

PX437 EXOPLANETS Evaporation of HD209458b Vidal-Madjar et al 2003, Nature 422, 143

PX437 EXOPLANETS The Sun in X-rays L x < L Bol

PX437 EXOPLANETS Evidence for evaporation e.g. Southworth, Wheatley & Sams 2007

PX437 EXOPLANETS Rossiter-McLaughlin effect

PX437 EXOPLANETS Radial Velocity of 51 Peg b Mayor & Queloz 1995, Nature 378, 23

PX437 EXOPLANETS Winn et al 2005 ApJ 631, 1215 Rossiter-McLaughlin effect in HD Measures spin of star Shows 4deg misaligned but same direction as planet orbit

PX437 EXOPLANETS Secondary eclipses Spitzer Space Telescope

PX437 EXOPLANETS HD at 24 microns Deming et al 2005 Nature 434, 740 Eclipse depth 0.26%

PX437 EXOPLANETS TrES-1b at 4.5 and 8 microns Charbonneau et al 2005 ApJ 626, micron: eclipse depth=0.07% 8 micron: eclipse depth=0.23%

PX437 EXOPLANETS Burrows, Sudarsky & Hubeny 2006 ApJ 650, 140 CO H20H20 H20H20

PX437 EXOPLANETS Burrows, Sudarsky & Hubeny microns8 microns with Tio/VO without TiO/VO

PX437 EXOPLANETS Wheatley et al, in prep WASP-1b 4.5 microns Eclipse depth: (0.226+/-0.016)% Implies hot stratosphere

PX437 EXOPLANETS Gravitational microlensing method

PX437 EXOPLANETS First microlensing planets Beaulieu 2006, Nature 439, 437

PX437 EXOPLANETS Horne 2007