Leurini, S., Pillai, T., Stanke, T., Wyrowski, F., Testi, L., Schuller, F., Menten, K. M. and Thorwirth, S. (2011). The molecular distribution of the IRDC G351.77-0.51. Astron. Astrophys., 533. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746
Full text not available from this repository.Abstract
Context. Infrared dark clouds are massive, dense clouds seen in extinction against the IR Galactic background. Many of these objects appear to be on the verge of star and star cluster formation. Aims. Our aim is to understand the physical properties of IRDCs in very early evolutionary phases. We selected the filamentary IRDC G351.77-0.51, which is remarkably IR quiet at 8 mu m. Methods. As a first step, we observed mm dust continuum emission and rotational lines of moderate and dense gas tracers to characterise different condensations along the IRDC and study the velocity field of the filament. Results. Our initial study confirms coherent velocity distribution along the infrared dark cloud ruling out any coincidental projection effects. Excellent correlation between MIR extinction, mm continumm emission and gas distribution is found. Large-scale turbulence and line profiles throughout the filament is indicative of a shock in this cloud. Excellent correlation between line width and MIR brightness indicates turbulence driven by local star formation.
Item Type: | Journal Article | ||||||||||||||||||||||||||||||||||||
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URN: | urn:nbn:de:hbz:38-490161 | ||||||||||||||||||||||||||||||||||||
DOI: | 10.1051/0004-6361/201016380 | ||||||||||||||||||||||||||||||||||||
Journal or Publication Title: | Astron. Astrophys. | ||||||||||||||||||||||||||||||||||||
Volume: | 533 | ||||||||||||||||||||||||||||||||||||
Date: | 2011 | ||||||||||||||||||||||||||||||||||||
Publisher: | EDP SCIENCES S A | ||||||||||||||||||||||||||||||||||||
Place of Publication: | LES ULIS CEDEX A | ||||||||||||||||||||||||||||||||||||
ISSN: | 1432-0746 | ||||||||||||||||||||||||||||||||||||
Language: | English | ||||||||||||||||||||||||||||||||||||
Faculty: | Unspecified | ||||||||||||||||||||||||||||||||||||
Divisions: | Unspecified | ||||||||||||||||||||||||||||||||||||
Subjects: | no entry | ||||||||||||||||||||||||||||||||||||
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URI: | http://kups.ub.uni-koeln.de/id/eprint/49016 |
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