Clustering of Diffuse Infrared Background Light

Details Clustering of Diffuse Infrared Background Light Clustering of Diffuse Infrared Background Light

1996-04-30

arxiv.org/abs/astro-ph/9604181v1

Astronomy and Astrophysics

Astrophysics

6 pages postcript, talk at the "Cosmological constant and the evolution of the Universe" conference, Tokyo, Japan

Scientific paper

The cosmic infrared background from galaxies should have a minimum fluctuation of the order of 10\% on angular scales probed by the DIRBE (Diffuse Infrared Background Experiment) on board COBE (Cosmic Background Explorer). We present the theoretical basis for the analysis and discuss the all-sky all-wavelengths survey that we conducted. We further show that a linear combination of maps at different wavelengths can greatly reduce the fluctuations produced by foreground stars in the near-IR, while not eliminating the fluctuations of the background from high redshift galaxies. The method is potentially very powerful, especially at wavelengths in the mid- to far-IR where the foreground is bright but smooth.

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