July 17, 2012
All Day
McPherson 4054
"The public cosmic void catalog"
Paul Sutter (OSU/CCAPP)
Cosmic voids are potentially a rich source of information for both astrophysics and cosmology. To enable such science, we produce the most comprehensive void catalog to date using the Sloan Digital Sky Survey Data Release 7 main sample out to redshift z = 0.2 and the Luminous Red Galaxy sample out to z = 0.44. Using a modified version of the parameter-free void finder ZOBOV, we fully take into account the presence of survey boundary and masks. We discuss basic catalog statistics such as number counts and redshift distributions, as well as describe some example data products derived from our catalog, such as radial density profiles and projected density maps.
"FIREBall : the instrument, first flights, model predictions, and observing strategies for future flights"
Stephan Frank (Astronomy)
