Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003esasp.511...47m&link_type=abstract
Exploiting the ISO Data Archive. Infrared Astronomy in the Internet Age, held in Siguenza, Spain 24-27 June, 2002. Edited by
Astronomy and Astrophysics
Astronomy
2
Scientific paper
The scientific programme of ISO included observations of 40 asteroids, 16 comets, 6 planets, and 8 planetary satellites. In addition, programmes were conducted on zodiacal light, comet tails and trails, solar system dust, planetary satellites and rings, zodiacal bands and the Earth's circumsolar dust ring. In large surveys many more asteroids and comets were seen by chance, some of which were not even discovered at the time of the observations.
ISO's results contributed in many field of solar system research. A connection via crystalline silicates has been established between old stars, proto-planetary disks and our own solar system (astro-mineralogy). Thermal infrared spectroscopy allowed to see the interrelations within the solar system, between asteroids, comets and meteorites. In this context, many asteroid spectra have been taken and analysed. From additional photometry, the size, albedo and thermal properties have been derived through radiometric techniques. Most of the comet programmes concentrated on Hale-Bopp, Hartley 2 and Encke: Crystalline silicates, water ice, new parent molecules, dust production rates, development of coma, trail formation and other aspects have been studied in great details.
But large samples of photometric and spectroscopic asteroid observations remain to be analysed and interpreted. The comet studies and the modeling efforts could certainly be extended to fainter targets. The effects of space weathering and aqueous alteration of surface materials could be studied and a better understanding of the commonalities of asteroid near-IR taxonomy and mid-IR spectroscopy is possible, especially now that different laboratory studies of meteorites and mineral mixtures have become available.
But many of the key observations are still hidden in the ISO data archive and exciting results can be expected in the future.
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