A tentative detection of the cosmic infrared background at 3.5 μm from COBE/DIRBE observations

Details A tentative detection of the cosmic infrared background at 3.5 μm from COBE/DIRBE observations A tentative detection of the cosmic infrared background at 3.5 μm from COBE/DIRBE observations

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aipc..470..354d&link_type=abstract

The 9th astrophysics conference: After the dark ages, when galaxies were young (the Universe at 2<Z<5). AIP Conference Proceedi

Astronomy and Astrophysics

Astrophysics

2

Background Radiations, Infrared

Scientific paper

Foreground emission and scattered light from interplanetary dust (IPD) particles and emission from Galactic stellar sources are the greatest obstacles for determining the cosmic infrared background (CIB) from diffuse sky measurements in the ~1 to 5 μm range. We describe a new method for deriving the CIB at near infrared wavelengths which reduces the uncertainties associated with the removal of the Galactic stellar emission component from the sky maps. The method produces positive residuals at 3.5 and 4.9 μm, of which only the 3.5 μm residual is nearly isotropic. We consider our result as a tentative detection of the CIB at this wavelength.

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