Cs. Kiss, A. Pál, Th. Müller, and P. Ábrahám
THE ASTEROID MODEL OF THE FAR-INFRARED SKY (Poster)

THE ASTEROID MODEL OF THE FAR-INFRARED SKY

Cs. Kiss(1), A. Pál(2), Th. Müller(3), and P. Ábrahám(1)
(1)Konkoly Observatory, PO Box 67, H-1525 Budapest, Hungary
(2)Department of Astronomy, Eötvös University, Pázmány P. s. 1/A, H-1171 Budapest, Hungary
(3)Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse, D-85748, Garching, Germany

Asteroids contribute siginificantly to the general look of the infrared sky, much more than at visible wavelengths. As infrared space mission are more and more sensitive, it is important to test the impact of asteroids on these observations.

We used the Statistical Asteroid Model-I (Tedesco et al. 2005) and a simple thermal model (Lang, 1992) to calculate the brightness of $\sim$1.9 million asteroids from mid-infrared to submillimetre wavelengths, at various dates/solar elongations. Using this model, we calculated expected number densities and confusion noise values, which are crucial parameters for the detectors of present and future space missions (e.g. PACS and SPIRE aborad Herschel, Planck).