2010/06/25 by A. Mercurio, C. P. Haines, Mercurio, A. +9
Physics and Astronomy · #Active galactic nucleus #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #Dwarf galaxy #Elliptical galaxy #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy formation and evolution #Galaxy merger #Luminosity #Luminosity function #Luminous infrared galaxy #Physics #Redshift #Star formation #Stellar, planetary, and galactic studies #astro-ph.CO
paper · pdf · doi:10.48550/arxiv.1006.5001
Proceedings of the Workshop held in Vulcano (Messina), Italy, May 18-22 2008
arxiv created 2010/06/25 · openalex publication_date 2010/06/25 · arxiv updated 2010/06/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We present an analysis of star formation and nuclear activity of about 28000 galaxies in a volume-limited sample taken from SDSS DR4 low-redshift catalogue (LRC) taken from the New York University Value Added Galaxy Catalogue (NYU-VAGC) of Blanton et al. 2005, with 0.005~ L*) galaxies. Moreover the fraction of galaxies with the optical signatures of an active galactic nucleus (AGN) decreases steadily from ~50% at Mr~-21 to ~0 per cent by Mr~-18 closely mirroring the luminosity dependence of the passive galaxy fraction in low-density environments (see fig. 1 continuous lines). This result reflects the increasing importance of AGN feedback with galaxy mass for their evolution, such that the star formation histories of massive galaxies are primarily determined by their past merger history.