Resolving dust discs and debris discs in the far infrared

Details Resolving dust discs and debris discs in the far infrared Resolving dust discs and debris discs in the far infrared

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.482...97w&link_type=abstract

ISOPHOT: Proceedings of the Workshoip on P32 Oversampled Mapping, held in Madrid, Spain and Pasadena, CA, USA in February and Ma

Physics

Infrared:Stars, Stars: Protoplanetary Disks, Circumstellar Material

Scientific paper

The four prototype (Vega-like) stars with known debris discs (Vega, βPic, αPsA, ɛEri) and six candidates (namely 49 Cet, HD34700, HD98800, HD135344, HD139614, HD169142) were observed using the PHT32 oversampled mapping mode of ISOPHOT on the Infrared Space Observa- tory (ISO). The discs have been resolved, at 60 μm and 90 μm in most cases, using the special P32 tools package in PIA, and deconvolved using maps of the calibration star HR1457. With new distances for some of the stars, the disc sizes range from less than a hundred AU for ɛEri up to a few thousand of AU for the younger objects.

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