1. Odin spectral line observations of Sgr A and Sgr B2 at submm wavelengths and in the 118-GHz band
- Author
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Aa Sandqvist, P Bergman, P Bernath, U Frisk, Å Hjalmarson, B Larsson, M Lindqvist, M Olberg, A O H Olofsson, L Pagani, and the Odin Team
- Subjects
Physics ,History ,Wavelength ,Star formation ,Astronomy ,Satellite ,Astrophysics ,Absorption (electromagnetic radiation) ,Spectral line ,Computer Science Applications ,Education ,Line (formation) - Abstract
Since its launch in 2001, the Odin satellite has been observing the Galactic Centre Sgr A Complex (CND, +20 and +50 km s �1 Clouds) as well as the nearby star formation region, Sgr B2, a number of times. Observations have been made in the 118-119 GHz and 486-581 GHz bands. A limited mapping of the Sgr A Complex in the H 16 O line has been performed and new observations of the H 18 O line took place in 2006. In the 118-119 GHz band, a strong line of HC3 N( J =1 3� 12) has been detected at a number of positions - sensitive upper limits have been obtained for the O2 (11 � 10 )a nd the SiC ( 3 Π2,J =3 � 2) lines. Towards Sgr B2, submm observations have yielded absorption profiles of H 16 O, H 18 O, H 17 O, NH3 ,a nd 15 NH3.
- Published
- 2006
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