The diffuse clouds towards Cyg OB2 No. 5 and No. 12
Journal article, 2005

We have investigated, in the 13CO(1-0) line, the region between the stars Cyg OB2 No. 5 and No, 12. The integrated intensity contour map reveals the existence of a condensation at 12 km s-1 (core C), north-west of Cyg OB2 No. 5, with a core-halo structure. The morphology and the derived physical parameters make it quite similar to core A, previously discovered towards Cyg OB2 No. 12. A second condensation at 7 km s -1, near Cyg OB2 No. 12, has been mapped in the same line (1-0) of 13CO. A summary of different observations, in all spectral regions, towards Cyg OB2 No. 5 and No. 12 is presented to provide the material for a further comprehensive discussion of this intricate and still intriguing region.


S. Casu

INAF Osservatorio Astronomico di Cagliari

F. Scappini

Istituto Per Lo Studio Dei Materiali Nanostrutturati, Rome

C. Cecchi-Pestellini

Universita del Salento

Michael Olberg

Chalmers, Department of Radio and Space Science

Monthly Notices of the Royal Astronomical Society

0035-8711 (ISSN) 1365-2966 (eISSN)

Vol. 359 1 73-78

Subject Categories

Aerospace Engineering



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