The Asteroid Preparatory Programme for HERSCHEL, ASTRO-F & ALMA

Details The Asteroid Preparatory Programme for HERSCHEL, ASTRO-F & ALMA The Asteroid Preparatory Programme for HERSCHEL, ASTRO-F & ALMA

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.577..471m&link_type=abstract

In: Proceedings of the dusty and molecular universe: a prelude to Herschel and ALMA, 27-29 October 2004, Paris, France. Ed. by A

Astronomy and Astrophysics

Astronomy

4

Minor Planets, Asteroids, Radiation Mechanisms: Thermal, Infrared: Solar System

Scientific paper

We present the status of the "Asteroid Preparatory Programme" which is currently conducted together with the HERSCHEL and ASTRO-F calibration teams. We investigate the physical and thermal properties of about 50 asteroids. All of them are large, almost spherical and belong to the main-belt, located between Mars and Jupiter. They cover the flux range between about 1 and several hundred Jansky at 100 μm, at 1 mm they still reach up to 10 Jy. Thermophysical model predictions (light curves, SEDs or monochromatic fluxes) are accurate on the 5-20% level, depending on the object, the wavelength, the observing and the illumination geometry. Extensive observational and theoretical work is currently going on to improve the models for the selected asteroids.

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