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Highlights from the first year of Odin observations

Research output: Contribution to journalArticlepeer-review

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  • A Hjalmarson
  • U Frisk
  • M Olberg
  • P Bergman
  • N Biver
  • J H Black
  • R S Booth
  • V Buat
  • J Crovisier
  • C L Curry
  • M Dahlgren
  • P J Encrenaz
  • E Falgarone
  • P A Feldman
  • M Fich
  • H G Floren
  • M Fredrixon
  • M Gerin
  • E M Gregersen
  • M Hagstrom
  • J Harju
  • T Hasegawa
  • C Horellou
  • L E B Johansson
  • E Kyrola
  • S Kwok
  • B Larsson
  • A Lecacheux
  • T Liljestrom
  • M Lindqvist
  • R Liseau
  • E J Llewellyn
  • K Mattila
  • G Megie
  • G F Mitchell
  • D Murtagh
  • L A Nyman
  • H L Nordh
  • A O H Olofsson
  • G Olofsson
  • H Olofsson
  • L Pagani
  • G Persson
  • R Plume
  • H Rickman
  • I Ristorcelli
  • G Rydbeck
  • A Sandqvist
  • F von Scheele
  • G Serra
  • S Torchinsky
  • N F Tothill
  • K Volk
  • T Wiklind
  • C D Wilson
  • A Winnberg
  • G Witt


Publication details

JournalAstronomy & Astrophysics
DatePublished - May 2003
Issue number3
Number of pages8
Pages (from-to)L39-L46
Original languageEnglish


Key Odin operational and instrumental features and highlights from our sub-millimetre and millimetre wave observations of H2O, (H2O)-O-18, NH3, (NH3)-N-15 and O-2 are presented, with some insights into accompanying Odin Letters in this A& A issue. We focus on new results where Odin's high angular resolution, high frequency resolution, large spectrometer bandwidths, high sensitivity or/and frequency tuning capability are crucial: H2O mapping of the Orion KL, W3, DR21, S 140 regions, and four comets; H2O observations of Galactic Centre sources, of shock enhanced H2O towards the SNR IC443, and of the candidate infall source IRAS 16293-2422; (H2O)-O-18 detections in Orion KL and in comet Ikeya-Zhang; sub-mm detections of NH3 in Orion KL (outflow, ambient cloud and bar) and rho Oph, and very recently, of (NH3)-N-15 in Orion KL. Simultaneous sensitive searches for the 119 GHz line of O-2 have resulted in very low abundance limits, which are difficult to accomodate in chemical models. We also demonstrate, by means of a quantitative comparison of Orion KL H2O results, that the Odin and SWAS observational data sets are very consistently calibrated.

    Research areas

  • radio lines : ISM, ISM : molecules, space vehicles : instruments, submillimeter, techniques : spectroscopic, telescopes, WAVE-ASTRONOMY-SATELLITE, MOLECULAR CLOUDS, IRAS 16293-2422, STAR-FORMATION, W3 CORE, INTERSTELLAR, IRAS-16293-2422, CHEMISTRY, SHOCKS

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