Quasar/ulirg Evolution Study (quest): The X-ray Perspective

Details Quasar/ulirg Evolution Study (quest): The X-ray Perspective Quasar/ulirg Evolution Study (quest): The X-ray Perspective

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.0716t&link_type=abstract

American Astronomical Society, HEAD meeting #11, #7.16; Bulletin of the American Astronomical Society, Vol. 41, p.662

Astronomy and Astrophysics

Astronomy

Scientific paper

Galaxy merging is a key driving force of galaxy evolution. It has been proposed that ULIRGs evolve into quasars where these mergers first go through a luminous starburst phase, followed by a dust-enshrouded AGN phase, and finally evolve into optically bright "naked" QSOs once they either consume or shed their gas/dust reservoirs through powerful wind events. QUEST is a comprehensive multi-wavelength imaging and spectroscopic survey of local ULIRG and QSO mergers. The ULIRG component of this study focuses on the 1-Jy ULIRG sample, an unbiased and complete flux-limited sample of 118 ULIRGs, and the QSO component focuses on the Palomar-Green (PG) QSOs. We present the results from the X-ray survey of a sub-set of 40 ULIRGs and 26 PG QSOs with available archival and GO observations from Chandra and XMM-Newton. We will explore whether there is an evolutionary connection between the two classes of objects.

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