Cocoon stars in the Large Magellanic Cloud

Details Cocoon stars in the Large Magellanic Cloud Cocoon stars in the Large Magellanic Cloud

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...382..143r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 382, Nov. 20, 1991, p. 143-148. Research supported by NASA.

Astronomy and Astrophysics

Astronomy

33

Asymptotic Giant Branch Stars, Infrared Sources (Astronomy), Magellanic Clouds, Supergiant Stars, Infrared Astronomy Satellite, Interstellar Extinction, Stellar Evolution, Stellar Luminosity

Scientific paper

Near-infrared (JKH) photometry of 13 of the 29 IRAS sources toward the northern LMC that were suggested as possible dust-embedded asymptotic giant branch stars by Reid, Tinney, and Mould (1984) is presented. Two prove to be more luminous LMC red supergiants, while one appears to be a substantially more distant extragalactic object. The remaining 10 are identified as LMC 'cocoon' stars, with most having flux distributions similar to highly reddened Galactic OH/IR sources and bolometric luminosities in the range of -5 to -6. The present estimates of the mass-loss rates imply lifetimes of less than 100,000 yr.

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