Evolution of Activity in Massive Gas-rich Mergers: The X-ray Perspective

Details Evolution of Activity in Massive Gas-rich Mergers: The X-ray Perspective Evolution of Activity in Massive Gas-rich Mergers: The X-ray Perspective

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2635v&link_type=abstract

Chandra proposal ID #10700660

Physics

Scientific paper

As the final element of QUEST, a multiwavelength program on local massive gas-rich mergers, we propose to obtain ACIS-S data on all z < 0.15 ULIRGs with no obvious signs of AGN activity in deep Spitzer MIR spectra but with reliable spectroscopically-determined host (hence black hole) masses. The main goal is to investigate the evolution of nuclear activity in advanced mergers beyond the first peri-passage. We wish to study in detail the basic physical processes involved in creating massive early type hosts, and feeding embedded massive BHs in major galaxy mergers. This is an important question since about 50% of cosmic star formation at high-z and most of the big BHs appear to be formed in this process. Here we first propose a snapshot survey of the 10 sources without any X-ray data.

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