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Astron. Astrophys. 320, 167-171 (1997)


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Two new T Tauri stars and a candidate FU Orionis star associated with Bok globules

J.L. Yun 1, M.C. Moreira 1, J.F. Alves 1 and J. Storm 2

1 Departamento de Física, Universidade de Lisboa, Campo Grande, Edif. C1, 1700 Lisboa, Portugal
2 European Southern Observatory, Casilla 19001, Santiago, Chile

Received 20 May 1996 / Accepted 25 September 1996

Abstract

We present photometric and spectroscopic evidence of two new T Tauri stars formed in the conditions of isolated small Bok globules. The spectral energy distributions of these objects display excess infrared emission, they are associated with optical reflection nebulae, and their optical spectra reveal Balmer emission lines and the Li I  [FORMULA] 6707 Å absorption line. Additionnally, we report the discovery of what may be a new FU Orionis star seen towards Bok globule CB 34. The star is about 4 magnitudes brighter than it appears on the Palomar plates and is associated with the aggregate of young stellar objects forming in Bok globule CB 34.

Key words: stars: formation – stars: pre-main-sequence – ISM: clouds – ISM: individual: CB 34 – infrared: stars

Send offprint requests to: J. L. Yun

© European Southern Observatory (ESO) 1997

Online publication: July 3, 1998

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