Astronomy and Astrophysics – Astronomy
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...202.5101m&link_type=abstract
American Astronomical Society Meeting 202, #51.01; Bulletin of the American Astronomical Society, Vol. 35, p.770
Astronomy and Astrophysics
Astronomy
Scientific paper
A fundamental goal of observational cosmology is to determine the spatial distribution of galaxies as a function of their physical properties. Such observations are required to place constraints on models of galaxy formation and evolution. We create a magnitude and volume-limited subset of galaxies in Sloan Digital Sky Survey and study how three specific properties depend on their local density: star-formation, bulge-to-disk light ratios, and the presence and/or power of an active nucleus. The star-formation is quantified using extinction corrected, aperture corrected and absorption corrected measurements of the Hα spectral luminosity. The morphology is measured using a new and fast bulge-to-disk decomposition software, and the AGNs are identified optically with their power quantified via the OIII luminosity. We discuss in turn how each of these properties depends on the local galaxy density. We characterize local galaxy densities using nearest neighbor measurements, kernal density estimators, and via proximity to nearby galaxy clusters.
Bernardi Marco
Connolly Andrew J.
Gomez Percy L.
Hopkins Andrew M.
Miller Christopher J.
No associations
LandOfFree
Galaxy Properties as a Function of Environment does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Galaxy Properties as a Function of Environment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galaxy Properties as a Function of Environment will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1369289