Determination of the cosmic far-infrared background level with the ISOPHOT instrument
نویسندگان
چکیده
منابع مشابه
Determination of the cosmic far - infrared background level with the ISOPHOT instrument ⋆ ( Research Note )
Context. The cosmic infrared background (CIRB) consists mainly of the integrated light of distant galaxies. In the far-infrared the current estimates of its surface brightness are based on the measurements of the COBE satellite. Independent confirmation of these results is still needed from other instruments. Aims. In this paper we derive estimates of the far-infrared CIRB using measurements ma...
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We examined the sky confusion noise in 40 sky regions by analysing 175 far-infrared (90–200 µm) maps obtained with ISOPHOT, the photometer on-board the Infrared Space Observatory. For cirrus fields with B > 5 MJysr −1 the formula based on IRAS data (Helou & Be-ichman, (1990)) predicts confusion noise values within a factor of 2 to our measurements. The dependence of the sky confusion noise on t...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2009
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/200811351