Detached cold dust shell around the early R star (warm carbon star) HD 100764

Details Detached cold dust shell around the early R star (warm carbon star) HD 100764 Detached cold dust shell around the early R star (warm carbon star) HD 100764

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...247..429p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 247, no. 2, July 1991, p. 429-433.

Astronomy and Astrophysics

Astronomy

8

Carbon Stars, Early Stars, Infrared Stars, Stellar Envelopes, Stellar Evolution, Stellar Mass Ejection, Cosmic Dust, Infrared Astronomy, Infrared Astronomy Satellite, Infrared Radiation, Stellar Cores

Scientific paper

The existence of a dust shell and warm dust near HD 100764 are determined from IRAS observations of early R stars, and the ramifications of the findings are discussed. The mass of the dust shell is calculated to be 0.510 to the -4th solar mass, and the shell is considered to be an oxygen-rich silicate dust shell. The dust shell is theorized to be the result of mass loss experienced by the star during the helium core flash, a mechanism which is extended to the shells of J-type carbon stars.

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