SPIRE Multi-Color Fluctuation P(D) Analysis Below the Confusion Limit.

Details SPIRE Multi-Color Fluctuation P(D) Analysis Below the Confusion Limit. SPIRE Multi-Color Fluctuation P(D) Analysis Below the Confusion Limit.

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.0501l&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #05.01; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

The SPIRE instrument on the Herschel telescope will obtain sensitive spectral and photometric observations in wavebands centered at 250, 350, and 520 microns. As these wavelengths trace the thermal emission from interstellar gas and dust that comprise the cosmic integrated background radiation (CIB), SPIRE will provide unique information on the history of energy injection through star formation and active galactic nuclei in the universe. Even with Herschel, much of the background radiation will be unresolved, especially at the longest wavelengths, which probe the largest redshifts. Analysis of the fluctuations in the background generally referred to as a P(D) analysis provides unique information on the sources of the cosmic infrared background at redshifts where they are too faint to be detected individually. We present results of a fluctuation analysis of simulated observations with SPIRE on the Herschel satellite. We show that such an analysis provides much more stringent constraints on the source number counts than those derived using the point sources identified in the Herschel survey. We show that with observations of approximately one square degree it will be possible to place tight constraints on the source population that produces a large fraction of the cosmic infrared background.

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