Journal
ASTROPHYSICAL JOURNAL
Volume 720, Issue 1, Pages 299-305Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/720/1/299
Keywords
cosmic background radiation; galaxies: active; submillimeter: general
Categories
Funding
- National Science Foundation at University of Pittsburgh [AST-0408698, AST-0546035, AST-0807790]
- Zaccheus Daniel Fellowship at University of Pittsburgh
- Alfred P. Sloan Foundation
- U.S. Department of Energy
- National Aeronautics and Space Administration
- Japanese Monbukagakusho
- Max Planck Society
- Higher Education Funding Council for England
- Andrew Mellon Fellowship at University of Pittsburgh
- National Science Foundation
- American Museum of Natural History
- Astrophysical Institute Potsdam
- University of Basel
- University of Cambridge
- Case Western Reserve University
- University of Chicago
- Drexel University
- Fermilab
- Institute for Advanced Study
- Japan Participation Group
- Johns Hopkins University
- Joint Institute for Nuclear Astrophysics
- Kavli Institute for Particle Astrophysics and Cosmology
- Korean Scientist Group
- Laboratory
- Max-Planck-Institute for Astronomy (MPIA)
- Max-Planck-Institute for Astrophysics (MPA)
- New Mexico State University
- Ohio State University
- University of Pittsburgh
- University of Portsmouth
- Princeton University
- United States Naval Observatory
- University of Washington
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [0807790] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [0806732] Funding Source: National Science Foundation
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We perform a cross-correlation analysis of microwave data from the Wilkinson Microwave Anisotropy Probe and photometric quasars from the Sloan Digital Sky Survey, testing for the Sunyaev-Zeldovich (SZ) effect from quasars. A statistically significant (2.5 sigma) temperature decrement exists in the 41 GHz microwave band. A two-component fit to the cross-correlation spectrum incorporating both dust emission and SZ yields a best-fit y parameter of (7.0 +/- 3.4) x 10(-7). A similar cross-correlation analysis with the luminous red galaxy sample from Sloan gives a best-fit y parameter of (5.3 +/- 2.5) x 10(-7). We discuss the possible physical origin of these signals, which is likely a combination of SZ effects from quasars and galaxy clusters. Both the Planck Surveyor satellite and the current ground-based arcminute-resolution microwave experiments will detect this signal with a higher statistical significance.
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