| Issue |
A&A
Volume 485, Number 1, July I 2008
|
|
|---|---|---|
| Page(s) | 167 - 175 | |
| Section | Interstellar and circumstellar matter | |
| DOI | https://doi.org/10.1051/0004-6361:200809475 | |
| Published online | 06 May 2008 | |
High-mass star formation in the IRAS 17233-3606 region: a new nearby and bright hot core in the southern sky*
1
ESO, Karl-Scharzschild-Strasse 2, 85748 Garching-bei-München, Germany e-mail: sleurini@eso.org
2
Max Planck Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany e-mail: name@mpifr-bonn.mpg.de
Received:
28
January
2008
Accepted:
27
April
2008
Aims. We present molecular line observations of the massive star-forming region IRAS 17233-3606 aimed at studying the molecular core associated with the source.
Methods. The observations were made using
the Atacama Pathfinder Experiment telescope in the CO (3-2)
and HCO+ (4–3) transitions and in the CH3OH (6
), (7
),
and CH3CN (16
) bands. For the CO(3–2) and HCO+ (4–3)
transitions, we obtained maps with a size of 
. The typical angular resolution of the
data is ∼
.
Results. Our observations reveal an exceptionally rich molecular spectrum, one
signpost of hot core activity. Comparisons with two other prominent
southern hot cores were made through observations in the same
frequency setups. We also detected a bipolar
outflow in CO (3–2) and HCO+ (4–3) lines. Modelling reveals a hot core of size ∼
and
a temperature of 150 K in the IRAS 17233-3606 region. The parameters of the molecular
outflow are derived through the analysis of the CO (3–2) emission, and are typical
of outflows driven by high-mass young stellar objects.
Key words: ISM: jets and outflows / ISM: molecules / stars: individual: IRAS 17233-3606 / stars: formation
© ESO, 2008
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