S E M I N A R I

Departament d'Astronomia i Astrofísica
Universitat de València

    Does light trace mass?: Results for 2dFGRS and future DES

Enrique Castañaga

Institut d'Estudis Espacials de Catalunya/CSIC


Seminari del departament d'Astronomia i Astrofísica

Dimarts 04 octubre 2005

12:00


Resum

I will review how to use the 2 and 3-point function to study galaxy bias: how light traces the mass distribution. Understanding bias is important to interpret the observational data and can also uncover new physical information about the tracers (galaxies or clusters). These ideas are applied to the 2dF Galaxy Redshift Survey (2dFGRS) and also to clusters in the future Dark Energy Survey (DES). I will also present a brief description of these two projects.