PX437 EXOPLANETS

Outline

1. Before Exoplanets

2. Detecting exoplanets1. Direct imaging2. Reflex Motion of Star3. Transiting exoplanets

3. Planet Formation

4. Extra-Terrestial Life

PX437 EXOPLANETS

Solar wobble

Displacement of the Sun over 45-year period, as observed from 33 light-years away.

NASA JPL

PX437 EXOPLANETS

Astrometry with HST

Benedict et al. 2006, AJ 132, 2206

PX437 EXOPLANETS

SOPHIE spectrographat Haute-Provence Observatory

PX437 EXOPLANETS

PX437 EXOPLANETS

Radial Velocity discovery of 51 Peg b

Mayor & Queloz 1995, Nature 378, 23

PX437 EXOPLANETS

PX437 EXOPLANETS

Jupiter

PX437 EXOPLANETSHorne 2007

PX437 EXOPLANETSMultiple systems: Ups And c/d

PX437 EXOPLANETS

PX437 EXOPLANETS

PX437 EXOPLANETS

MetallicityFischer & Valenti 2003, 2005

PX437 EXOPLANETS

PX437 EXOPLANETS

Discovery of planets orbiting a pulsar

Wolszczan & Frail 1992, Nature 355, 145

PX437 EXOPLANETS

The black widow pulsar(B1957+20)

Red=X-ray; blue/green=optical

PX437 EXOPLANETS

V391 Peg b discovered by timing method

Silvotti et al. 2007, Nature 449, 189