| Issue |
A&A
Volume 439, Number 2, August IV 2005
|
|
|---|---|---|
| Page(s) | 595 - 600 | |
| Section | Interstellar and circumstellar matter | |
| DOI | https://doi.org/10.1051/0004-6361:20041615 | |
| Published online | 29 July 2005 | |
Millimetric observations of southern HII regions
1
Dipartimento di Fisica, Università di Roma Tre, via della Vasca Navale 84, 00146 Roma, Italy e-mail: sabbatini@fis.uniroma3.it
2
Dipartimento di Fisica, Università di Milano, via Celoria 16, 20133 Milano, Italy
3
University of Manchester, Jodrell Bank Observatory, Macclesfield, Cheshire, UK
4
Dipartimento di Fisica, Università di Roma “La Sapienza”, Roma, Italy
5
CESR, 9 Avenue du Colonel Roche, BP 4346, 31028 Toulouse Cedex 4, France
6
CNR, IASF, sezione di Bologna, via P. Gobetti 101, 40129 Bologna, Italy
Received:
8
July
2004
Accepted:
12
April
2005
We report on millimetric continuum observations of two bright compact HII regions, which have been observed for the first time in this frequency range. For the two observed regions (G291.6-0.5 and G291.3-0.7), we derive the flux densities at the two observed wavelengths (1.25 and 2 mm) as well as the spectral index and the temperature of the surrounding dust by fitting a modified blackbody curve to our results combined with IR values obtained from the literature. We also estimate the dust mass and the bolometric luminosity of the two regions.
Key words: HII regions / ISM: individual objects: G291.6-0.5 / ISM: individual objects: G291.3-0.7 / submillimeter / dust, extinction
© ESO, 2005
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