Detection of CS emission towards Cygnus OB2 No. 12
Journal article, 2007

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.

ISM: molecules

ISM: clouds

ISM: lines and bands

Author

F. Scappini

Istituto per lo Studio dei Materiali Nanostrutturati del C.N.R.

C. Cecchi-Pestellini

NAF - Osservatorio Astronomico di Cagliari

S. Casu

NAF - Osservatorio Astronomico di Cagliari

Michael Olberg

Onsala Space Observatory

Astronomy and Astrophysics

0004-6361 (ISSN) 1432-0746 (eISSN)

Vol. 466 243-246

Subject Categories

Astronomy, Astrophysics and Cosmology

DOI

10.1051/0004-6361:20065927

More information

Latest update

12/12/2019