Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.3106p&link_type=abstract
American Astronomical Society, HEAD meeting #11, #31.06; Bulletin of the American Astronomical Society, Vol. 41, p.703
Astronomy and Astrophysics
Astronomy
Scientific paper
Recent studies suggest that galaxy cluster pressure profiles follow a universal form, and that integrated pressure correlates strongly with cluster mass. However, the behavior of pressure far from the cluster center (r > r_500) is relatively poorly measured. We use X-ray data from Chandra and Sunyaev-Zel'dovich Effect data from the South Pole Telescope (SPT) to better constrain the pressure profiles of six massive z 0.3 galaxy clusters out to large radius, and to test the validity of models in this regime. This work is part of a long term project with SPT to study the thermal structure and baryon distribution in clusters out to their virial radius with combined X-ray and Sunyaev-Zel'dovich measurements.
Bonamente Massimiliano
Plagge Thomas J.
South Pole Telescope Collaboration
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