Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.0811o&link_type=abstract
American Astronomical Society, HEAD meeting #11, #8.11; Bulletin of the American Astronomical Society, Vol. 41, p.664
Astronomy and Astrophysics
Astronomy
Scientific paper
Galaxy merger models predict rapid black hole growth and strong outflows late in the merger as the accretion rate increases. PKS 1549-79 is a powerful, low redshift (z=0.1523) active galaxy that displays observational characteristics consistent with being a young (proto-)quasar in a galaxy which has undergone a recent merger. As such local bright objects are rare, PKS 1549-79 is crucial for testing our understanding of galaxy activity and mergers. Our analysis of new sensitive XMM-Newton and Suzaku observations confirm that PKS 1549-79 is a buried quasar. However, in striking contrast to the predictions of galaxy merger models, we find no evidence for a massive, ionized outflow.
Braito Valentina
O'Brien Thomas P.
Reeves James N.
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