Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...364..613h&link_type=abstract
Astronomy and Astrophysics, v.364, p.613-624 (2000)
Astronomy and Astrophysics
Astrophysics
16
Stars: Formation, Ism: Clouds, Ism: Individual Objects: Iras 12326-6245, Ism: Molecules, Radio Lines: Ism
Scientific paper
We present a comprehensive study of the luminous young stellar object IRAS 12326-6245 at near- and mid-infrared wavelengths as well as in the millimetre wavelength range. IRAS 12326-6245 is associated with two ultracompact H ii regions. These massive young stellar objects are surrounded by a cluster of stars revealed by the near-infrared images. With N- and Q-band imaging, we find four very deeply embedded mid-infrared sources which form a remarkable proto-Trapezium system. Both ultracompact H ii regions are associated with mid-infrared sources. In addition, a K'-band nebulosity is present which outlines the rim of the molecular outflow. The mapping in different molecular lines as well as in the lambda 1.3 mm continuum shows that IRAS 12326-6245 is deeply embedded in a dense molecular cloud core in agreement with the steeply rising infrared spectral energy distributions of the ultracompact H ii regions. In the region one of the most energetic and massive bipolar molecular outflows was detected in CO(2-1), C18O(2-1), and SO with its origin close to IRAS 12326-6245. Based on observations with ISO, an ESA project with instruments funded by ESA Member States (especially the PI countries: France, Germany, the Netherlands and the United Kingdom) with the participation of ISAS and NASA.
Henning Th
Lapinov A.
Schreyer Katharina
Stecklum Bringfried
Zinchenko I. I.
No associations
LandOfFree
IRAS 12326-6245: Luminous very young stellar objects with a massive molecular outflow does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with IRAS 12326-6245: Luminous very young stellar objects with a massive molecular outflow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IRAS 12326-6245: Luminous very young stellar objects with a massive molecular outflow will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1721964