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Detection of CS emission towards Cygnus OB2 No. 12
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- Scappini, F. (author)
- Istituto per lo Studio dei Materiali Nanostrutturati del C.N.R.
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- Cecchi-Pestellini, C. (author)
- Istituto nazionale di astrofisica (INAF)
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- Casu, S. (author)
- Istituto nazionale di astrofisica (INAF)
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- Istituto per lo Studio dei Materiali Nanostrutturati del CN.R. Istituto nazionale di astrofisica (INAF) (creator_code:org_t)
- 2007-02-12
- 2007
- English.
- In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 466, s. 243-246
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Aims.The CS (J = 2-1) line was searched at locations with brightest 13CO (J=1-0) emissions in the region in front of the star Cyg OB2 No. 12. Methods.The observations were made with the 20-m millimeter wave telescope at Onsala using a 1024-channel autocorrelator with a resolution of 50 kHz (0.14 km s-1). Results.The line was detected only in one position (core B) with main beam brightness temperature $T_{\rm MB} = 0.15(2)$ K at $v_{\rm LSR} = 11.4(1)$ km s-1. Conclusions.The line excitation analysis suggests that core B could be a Bok globule in consideration of its morphology, chemistry and physical conditions.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- ISM: molecules
- ISM: clouds
- ISM: lines and bands
Publication and Content Type
- art (subject category)
- ref (subject category)
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