Infrared companions to T Tauri stars

Details Infrared companions to T Tauri stars Infrared companions to T Tauri stars

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...207...46c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 207, no. 1, Dec. 1988, p. 46-54. Research supported by the Universidad Naciona

Astronomy and Astrophysics

Astrophysics

49

Binary Stars, Companion Stars, Infrared Stars, Stellar Spectrophotometry, T Tauri Stars, Hertzsprung-Russell Diagram, Ophiuchi Clouds, Stellar Color, Stellar Envelopes, Stellar Evolution

Scientific paper

The authors report near infrared narrow slit scan observations of the low-luminosity T Tauri stars DoAr 24 E in the Rho Oph dark cloud and Glass I in the Chamaeleon dark cloud. Both sources turned out to be binaries with a linear projected separation on the sky of 360 AU for the former and 390 AU for the latter. In each system, the companion is an extremely red object. The authors argue that the T Tauri phase of evolution is preceeded by a stage during which the dissipation of the dusty circumstellar envelope takes place. In this scheme, the large infrared excesses associated with some T Tauri stars are probably due to infrared companions similar to the ones reported here.

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