Dust discs around low-mass main-sequence stars

Details Dust discs around low-mass main-sequence stars Dust discs around low-mass main-sequence stars

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988rspta.325..423w&link_type=abstract

(Royal Society, Discussion on the Solar System: Chemistry as a Key to its Origin, London, England, July 15, 16, 1987) Royal Soci

Computer Science

8

Accretion Disks, Cosmic Dust, Main Sequence Stars, Star Formation, Angular Momentum, Infrared Radiation, Poynting-Robertson Effect, Pre-Main Sequence Stars, Protostars, Stellar Mass

Scientific paper

The current understanding of the formation of circumstellar disks as a natural accompaniment to the process of low-mass star formation is examined. Models of the thermal emission from the dust disks around the prototype stars Alpha Lyr, Alpha PsA, Beta Pic, and Epsilon Eri are discussed, which indicate that the central regions of three of these disks are almost devoid of dust within radii ranging between 17 and 26 AU, with the temperature of the hottest zone lying between about 115 and 210 K. One possible explanation of the dust-free zones is the presence of a planet at the inner boundary of each cloud which sweeps up grains crossing its orbit.

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