Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.5924k&link_type=abstract
American Astronomical Society, DPS meeting #38, #59.24; Bulletin of the American Astronomical Society, Vol. 38, p.1304
Astronomy and Astrophysics
Astronomy
Scientific paper
We developed a statistical model for the asteroid component of the infrared sky for wavelengths 5 μm <= λ <= 1000 μm based on the Statistical Asteroid Model (Tedesco et al., 2005).
Far-infrared fluxes of 1.9 million asteroids -derived with the help of the Standard Thermal Model -are used to calculate confusion noise values and expected asteroid counts for infrared space instruments in operation or in the near future (e.g. Akari, Herschel and Planck).
Our results show that the confusion noise due to asteroids will not increase the detection threshold for most of the sky. However, there are specific areas near the ecliptic plane where the effect of asteroids can be comparable to the contribution of Galactic cirrus emission and that of the extragalactic background.
This work was supported by the European Space Agency (PECS #98011)
and by the Hungarian Space Office (TP286)
Ábrahám Peter
Kelemen János
Kiss Cs
Muller Tobias
Pal Abhijit
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