The SDSS View of Galaxy Mergers and Their Environments

Details The SDSS View of Galaxy Mergers and Their Environments The SDSS View of Galaxy Mergers and Their Environments

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342309m&link_type=abstract

American Astronomical Society, AAS Meeting #213, #423.09; Bulletin of the American Astronomical Society, Vol. 41, p.244

Astronomy and Astrophysics

Astronomy

Scientific paper

Major mergers between galaxies of comparable mass are dramatic examples of hierarchical galaxy formation. These interactions play a key role in leading theories invoking blue-to-red galaxy transformation to explain galaxy bimodality and the strong growth of the red spheroid population. Despite recent progress in our understanding of local mergers from powerful surveys like the SDSS, we lack a complete picture of this important evolutionary process. Especially unclear is the role that environment plays in merging. As part of a larger comprehensive study to improve our understanding of galaxy-galaxy interactions, we have identified unprecedented samples of gas-rich (disk-disk), dry (spheroid-spheroid) and `hybrid' (disk-spheroid) major mergers among galaxies of stellar mass >3e10 M(sun) in the local volume (0.02

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