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Highlights from the first year of Odin observations
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2003 (Engelska)Ingår i: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 402, s. L39-L46Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Key Odin operational and instrumental features and highlights from our sub-millimetre and millimetre wave observations of H2O, H218O, NH3, 15NH3 and O2 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, S140 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; H218O detections in Orion KL and in comet Ikeya-Zhang; sub-mm detections of NH3 in Orion KL (outflow, ambient cloud and bar) and ρ Oph, and very recently, of 15NH3 in~Orion KL. Simultaneous sensitive searches for the 119 GHz line of O2 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. Odin is a Swedish-led satellite project funded jointly by the Swedish National Space Board (SNSB), the Canadian Space Agency (CSA), the National Technology Agency of Finland (Tekes), and the Centre National d'études Spatiales (CNES, France). The Swedish Space Corporation (SSC) has been the prime industrial contractor, and is also responsible for the satellite operation from its Odin Mission Control Centre at SSC in Solna and its Odin Control Centre at ESRANGE near Kiruna in northern Sweden. See also the SNSB Odin web page: http://www.snsb.se/eng_odin_intro.shtml

Ort, förlag, år, upplaga, sidor
2003. Vol. 402, s. L39-L46
Nyckelord [en]
radio lines: ISM, ISM: molecules, space vehicles: instruments, submillimeter, techniques: spectroscopic, telescopes
Forskningsämne
astronomi
Identifikatorer
URN: urn:nbn:se:su:diva-30922DOI: 10.1051/0004-6361:20030337OAI: oai:DiVA.org:su-30922DiVA, id: diva2:274764
Tillgänglig från: 2009-10-31 Skapad: 2009-10-30 Senast uppdaterad: 2017-12-12Bibliografiskt granskad

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Florén, H. G.Larsson, B.Liseau, R.Nordh, H. L.Olofsson, G.Olofsson, H.Sandqvist, Aa.
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Institutionen för astronomi
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Astronomy and Astrophysics

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