EDP Sciences
Free access
Volume 426, Number 1, October IV 2004
Page(s) 97 - 103
Section Interstellar and circumstellar matter
DOI http://dx.doi.org/10.1051/0004-6361:20035755

A&A 426, 97-103 (2004)
DOI: 10.1051/0004-6361:20035755

SIMBA survey of southern high-mass star forming regions

I. Physical parameters of the $\mathsf{1.2}$-mm/IRAS sources
S. Faúndez1, L. Bronfman1, G. Garay1, R. Chini2, L.-Å. Nyman3 and J. May1

1  Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile
    e-mail: [leo;sfaundez]@das.uchile.cl
2  Astronomisches Institut der Ruhr-Universität Bochum, Universitätsstr. 150/NA 7, 44780 Bochum, Germany
3  European Southern Observatory, Casilla 19001, Santiago, Chile

(Received 27 November 2004 / Accepted 1 June 2004)

We report the results of a 1.2 mm continuum emission survey toward 146 IRAS sources thought to harbour high-mass star forming regions. The sources have FIR colors typical of UCHII regions and were detected in the CS( $2\rightarrow1$) line survey of Bronfman et al. (1996). Regions of $15\arcmin \times 10\arcmin$, centered on each IRAS source, were mapped with an angular resolution of ~24´´, using the SIMBA array on the SEST telescope. 1.2 mm emission was detected toward all IRAS sources. We find that the dust cores associated with these sources have typical sizes of 0.4 pc and masses of $5\times 10^3~M_\odot$. Dust temperatures and luminosities, derived from the SED, are typically 32 K and $2.3 \times 10^5~L_\odot$.

Key words: ISM: clouds -- stars: formation -- ISM: dust, extinction -- radio continum: ISM -- stars: circumstellar matter -- ISM: H II regions

SIMBAD Objects

© ESO 2004