Young Stellar Objects in Lynds 1641: a submillimetre continuum study.

Annie Zavagno (1) , S. Molinari (2) , E. Tommasi , P. Saraceno (2) , M. Griffin (3)

1 LAM - Laboratoire d'Astrophysique de Marseille
2 IFSI - Istituto di Fisica dello Spazio Interplanetario
3 MONTP UTCA - Unité de Technologie des céréales et des agropolymères

We present observations of the 350\ensuremathμm-1.3mm continuum emission of a sample of ten Class I young stellar objects in the Lynds 1641 (L1641) molecular cloud. These observations, together with IRAS data, are used to determine and discuss the properties of the circumstellar dust. We interpret these results in an evolutionary scheme and we find that, in our sample, the exponent of the dust opacity law, \ensuremathβ, seems to increase with time.

Keywords: STARS: PRE-MAIN-SEQUENCE; STARS: CIRCUMSTELLAR MATTER; INTERSTELLAR MEDIUM: DUST; RADIO CONTINUUM: STARS

Domains: Sciences of the Universe [physics]

Annie Zavagno, S. Molinari, E. Tommasi, P. Saraceno, M. Griffin. Young Stellar Objects in Lynds 1641: a submillimetre continuum study.. Astronomy and Astrophysics - A&A, 1997, 325, pp.685-692. ⟨hal-03562794⟩