Fluctuation Analysis of the Far-Infrared Background - Information from the Confusion

Abstract

We are investigating to what extent one can use a P(D) analysis to extract number counts of unclustered sources from maps of the far infrared background. Currently available such maps, and those expected to emerge in near future are dominated by confusion noise due to poor resolution. We simulate background maps with an underlying two slope model for N(S) and we find that in an experiment of FIRBACK type we can extract the high flux slope with an error of few percent while other parameters are not so well constrained. We find, however, that in a SIRTF type experiment all parameters of this N(S) model can be extracted with errors of only few percent.

arXiv comment21 pages, latex, 6 figures. Accepted for publication, MNRAS

References in corpus (12)

• Karhunen-Loeve eigenvalue problems in cosmology: how should we tackle large data sets?
• Constraining the equation of state of the Universe from Distant Type Ia Supernovae and Cosmic Microwave Background Anisotropies
• Semi-analytic modelling of galaxy evolution in the IR/submm range
• Weighing the Universe with the Cosmic Microwave Background
• FIRBACK: III. Catalog, Source counts, and cosmological implications of the 170 micron ISO Deep survey
• Probing Early Structure Formation with Far-Infrared Background Correlations
• Predictions for Cosmological Infrared Surveys from Space with the Multiband Imaging Photometer for SIRTF (MIPS)
• Exploring Galaxy Evolution from Infrared Number Counts and Cosmic Infrared Background
• Correlations in the Far Infrared Background
• FIRBACK: II. Data Reduction and Calibration of the 170 micron ISO Deep Cosmological Survey
• Implications of SCUBA observations for the Planck Surveyor
• The extragalactic background and its fluctuations in the far-infrared wavelengths

Cited by in corpus (6)

• Over half of the far-infrared background light comes from galaxies at z >= 1.2
• Submillimeter Number Counts From Statistical Analysis of BLAST Maps
• Deep 3 GHz Number Counts from a P(D) Fluctuation Analysis
• A Fluctuation Analysis of the Bolocam 1.1mm Lockman Hole Survey
• Inference of Unresolved Point Sources At High Galactic Latitudes Using Probabilistic Catalogs
• Extracting cosmological signals from foregrounds in deep mm maps of the sky