Mergers of luminous early-type galaxies in the local universe and gravitational wave background

Details Mergers of luminous early-type galaxies in the local universe and gravitational wave background Mergers of luminous early-type galaxies in the local universe and gravitational wave background

2008-10-29

arxiv.org/abs/0810.5200v2

Astrophys.J.692:511-521,2009

Astronomy and Astrophysics

Astrophysics

27 pages, 9 figures, Corrected typos and references

Scientific paper

10.1088/0004-637X/692/1/511

Supermassive black hole (SMBH) coalescence in galaxy mergers is believed to be one of the primary sources of very low frequency gravitational waves (GWs). Significant contribution of the GWs comes from mergers of massive galaxies with redshifts z<2. Very few previous studies gave the merger rate of massive galaxies. % We selected a large sample (1209) of close pairs of galaxies with projected separations 7

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