Resolution of the circumstellar disk of Beta Pictoris at 10 and 20 microns

Details Resolution of the circumstellar disk of Beta Pictoris at 10 and 20 microns Resolution of the circumstellar disk of Beta Pictoris at 10 and 20 microns

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988natur.335...51t&link_type=abstract

Nature (ISSN 0028-0836), vol. 335, Sept. 1, 1988, p. 51-53.

Astronomy and Astrophysics

Astronomy

60

Dwarf Stars, Stellar Envelopes, Brightness Distribution, Cosmic Dust, Grain Size, Infrared Astronomy Satellite, Protoplanets, Radiative Transfer

Scientific paper

Observations at 10 and 20 microns with about 5 arcsec resolution are presented of the central, approximately 13 arcsec diameter region of the A5 dwarf Beta Pictoris. These observations resolve the inner disk and provide important constraints for models of the star and a basis for removing some of their ambiguities. The evidence indicates that submicron-sized grains emit much of the excess 10 and 20 micron radiation from the star. The characteristics of the dust are discussed, and the possibility that comets form the dust reservoir is considered.

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