Peter Wheatley (PS009) p.j.wheatley@warwick.ac.uk PX437 EXOPLANETS Peter Wheatley (PS009) p.j.wheatley@warwick.ac.uk

Outline Before Exoplanets Detecting exoplanets Planet Formation Direct imaging Reflex Motion of Star Transiting exoplanets Planet Formation Extra-Terrestial Life

IAU Asteroid belt Kuiper belt Terrestrial planets Gas giants Ice giants IAU

Planets, dwarf planets, small solar-system bodies Ceres: dwarf planet Typical asteroid: small solar-system body HST

Evolutionary tracks Burrows et al. 1997, ApJ 491, 856 Stars Brown dwarfs Planets Jupiter Saturn Evolutionary tracks

Composition of the giant planets Stevenson 1982 AREPS 10, 257

Tidal model Stephen Oxley

Discovery of debris around Vega Observed IR spectrum with 10,000 K black body subtracted IRAS observation: Temperature ~ 85 K Extent ~ 20 arcsec ~ 85 AU Aumann et al. 1984, ApJL 278, 23

Imaging of the debris disc around beta Pictoris Smith & Terrile 1984, Science 266, 1421 HST

Protoplanetary discs in Orion with HST McCaughrean & O’Dell 1996 AJ 111, 1977 Protoplanetary discs in Orion with HST

Debris discs around white dwarf stars Gaensicke et al. 2006, Science 314, 1908 MgII FeII CaII

Debris discs around white dwarf stars Rin  0.7R Rout  1.2R e  0.02

Debris discs around white dwarf stars Rin  0.7R Rout  1.2R e  0.02

Debris discs around white dwarf stars Rin  0.7R Rout  1.2R e  0.02