S E M I N A R IDepartament d'Astronomia i Astrofísica
Universitat de València
Wonders of Astrometry. Space and ground based astrometry for the next decade
Dept. of Terrestrial Magnetism/Carnegie Institution of Washington, NASA Astrobiology Fellow
Seminari del departament d'Astronomia i Astrofísca
Dimarts 29 setembre 2009
Astrometry is the branch of astronomy which measures the motion of astronomical objects on the celestial sphere. I'll make a short historical introduction to astrometry and describe the observables that can be measured with the new generation of space astrometry missions in the optical (Gaia and SIM) with special enphasis on extrasolar planet detection capabilities around nearby stars. I'll also discuss the kind of astrometric measurements that can be done from the ground and their applications. I'll use as an example some of the projects in which I'm involved in the context of the Carnegie Astrometric Planet Search.