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Article: Molecular oxygen in the ρ Ophiuchi cloud

TitleMolecular oxygen in the ρ Ophiuchi cloud
Authors
KeywordsIsm: Abundances
Ism: Clouds
Ism: Individual Objects: Ρ Oph A
Ism: Molecules
Radio Lines: Ism
Stars: Formation
Issue Date2007
PublisherE D P Sciences. The Journal's web site is located at http://www.aanda.org
Citation
Astronomy And Astrophysics, 2007, v. 466 n. 3, p. 999-1003 How to Cite?
AbstractContext. Molecular oxygen, O 2, has been expected historically to be an abundant component of the chemical species in molecular clouds and, as such, an important coolant of the dense interstellar medium. However, a number of attempts from both ground and from space have failed to detect O 2 emission. Aims. The work described here uses heterodyne spectroscopy from space to search for molecular oxygen in the interstellar medium. Methods. The Odin satellite carries a 1.1 m sub-millimeter dish and a dedicated 119 GHz receiver for the ground state line of O 2. Starting in 2002, the star forming molecular cloud core ρ Oph A was observed with Odin for 34 days during several observing runs. Results. We detect a spectral line at ν LSR = +3.5km s -1 with Δν FWHM = 1.5 km s -1, parameters which are also common to other species associated with ρ Oph A. This feature is identified as the O 2 (N J = 1 1-1 0) transition at 118750.343 MHz. Conclusions. The abundance of molecular oxygen, relative to H 2, is 5 × 10 -8 averaged over the Odin beam. This abundance is consistently lower than previously reported upper limits. © ESO 2007.
Persistent Identifierhttp://hdl.handle.net/10722/179704
ISSN
2014 Impact Factor: 4.378
2015 SCImago Journal Rankings: 2.446
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLarsson, Ben_US
dc.contributor.authorLiseau, Ren_US
dc.contributor.authorPagani, Len_US
dc.contributor.authorBergman, Pen_US
dc.contributor.authorBernath, Pen_US
dc.contributor.authorBiver, Nen_US
dc.contributor.authorBlack, JHen_US
dc.contributor.authorBooth, RSen_US
dc.contributor.authorBuat, Ven_US
dc.contributor.authorCrovisier, Jen_US
dc.contributor.authorCurry, CLen_US
dc.contributor.authorDahlgren, Men_US
dc.contributor.authorEncrenaz, PJen_US
dc.contributor.authorFalgarone, Een_US
dc.contributor.authorFeldman, PAen_US
dc.contributor.authorFich, Men_US
dc.contributor.authorFlorén, HGen_US
dc.contributor.authorFredrixon, Men_US
dc.contributor.authorFrisk, Uen_US
dc.contributor.authorGahm, GFen_US
dc.contributor.authorGerin, Men_US
dc.contributor.authorHagström, Men_US
dc.contributor.authorHarju, Jen_US
dc.contributor.authorHasegawa, Ten_US
dc.contributor.authorHjalmarson, Åen_US
dc.contributor.authorJohansson, LEBen_US
dc.contributor.authorJusttanont, Ken_US
dc.contributor.authorKlotz, Aen_US
dc.contributor.authorKyrölä, Een_US
dc.contributor.authorKwok, Sen_US
dc.contributor.authorLecacheux, Aen_US
dc.contributor.authorLiljeström, Ten_US
dc.contributor.authorLlewellyn, EJen_US
dc.contributor.authorLundin, Sen_US
dc.contributor.authorMégie, Gen_US
dc.contributor.authorMitchell, GFen_US
dc.contributor.authorMurtagh, Den_US
dc.contributor.authorNordh, LHen_US
dc.contributor.authorNyman, LÅen_US
dc.contributor.authorOlberg, Men_US
dc.contributor.authorOlofsson, AOHen_US
dc.contributor.authorOlofsson, Gen_US
dc.contributor.authorOlofsson, Hen_US
dc.contributor.authorPersson, Gen_US
dc.contributor.authorPlume, Ren_US
dc.contributor.authorRickman, Hen_US
dc.contributor.authorRistorcelli, Ien_US
dc.contributor.authorRydbeck, Gen_US
dc.contributor.authorSandqvist, AAen_US
dc.contributor.authorSchéele, FVen_US
dc.contributor.authorSerra, Gen_US
dc.contributor.authorTorchinsky, Sen_US
dc.contributor.authorTothill, NFen_US
dc.contributor.authorVolk, Ken_US
dc.contributor.authorWiklind, Ten_US
dc.contributor.authorWilson, CDen_US
dc.contributor.authorWinnberg, Aen_US
dc.contributor.authorWitt, Gen_US
dc.date.accessioned2012-12-19T10:03:02Z-
dc.date.available2012-12-19T10:03:02Z-
dc.date.issued2007en_US
dc.identifier.citationAstronomy And Astrophysics, 2007, v. 466 n. 3, p. 999-1003en_US
dc.identifier.issn0004-6361en_US
dc.identifier.urihttp://hdl.handle.net/10722/179704-
dc.description.abstractContext. Molecular oxygen, O 2, has been expected historically to be an abundant component of the chemical species in molecular clouds and, as such, an important coolant of the dense interstellar medium. However, a number of attempts from both ground and from space have failed to detect O 2 emission. Aims. The work described here uses heterodyne spectroscopy from space to search for molecular oxygen in the interstellar medium. Methods. The Odin satellite carries a 1.1 m sub-millimeter dish and a dedicated 119 GHz receiver for the ground state line of O 2. Starting in 2002, the star forming molecular cloud core ρ Oph A was observed with Odin for 34 days during several observing runs. Results. We detect a spectral line at ν LSR = +3.5km s -1 with Δν FWHM = 1.5 km s -1, parameters which are also common to other species associated with ρ Oph A. This feature is identified as the O 2 (N J = 1 1-1 0) transition at 118750.343 MHz. Conclusions. The abundance of molecular oxygen, relative to H 2, is 5 × 10 -8 averaged over the Odin beam. This abundance is consistently lower than previously reported upper limits. © ESO 2007.en_US
dc.languageengen_US
dc.publisherE D P Sciences. The Journal's web site is located at http://www.aanda.orgen_US
dc.relation.ispartofAstronomy and Astrophysicsen_US
dc.subjectIsm: Abundancesen_US
dc.subjectIsm: Cloudsen_US
dc.subjectIsm: Individual Objects: Ρ Oph Aen_US
dc.subjectIsm: Moleculesen_US
dc.subjectRadio Lines: Ismen_US
dc.subjectStars: Formationen_US
dc.titleMolecular oxygen in the ρ Ophiuchi clouden_US
dc.typeArticleen_US
dc.identifier.emailKwok, S: deannote@hku.hken_US
dc.identifier.authorityKwok, S=rp00716en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1051/0004-6361:20065500en_US
dc.identifier.scopuseid_2-s2.0-34248570515en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34248570515&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume466en_US
dc.identifier.issue3en_US
dc.identifier.spage999en_US
dc.identifier.epage1003en_US
dc.identifier.isiWOS:000246007400021-
dc.publisher.placeFranceen_US
dc.identifier.scopusauthoridLarsson, B=7202678664en_US
dc.identifier.scopusauthoridLiseau, R=6701345678en_US
dc.identifier.scopusauthoridPagani, L=7006076032en_US
dc.identifier.scopusauthoridBergman, P=7006615192en_US
dc.identifier.scopusauthoridBernath, P=35372923700en_US
dc.identifier.scopusauthoridBiver, N=6603734959en_US
dc.identifier.scopusauthoridBlack, JH=25222377400en_US
dc.identifier.scopusauthoridBooth, RS=7202614585en_US
dc.identifier.scopusauthoridBuat, V=7003733332en_US
dc.identifier.scopusauthoridCrovisier, J=35448565400en_US
dc.identifier.scopusauthoridCurry, CL=7101672097en_US
dc.identifier.scopusauthoridDahlgren, M=7004286799en_US
dc.identifier.scopusauthoridEncrenaz, PJ=6603978312en_US
dc.identifier.scopusauthoridFalgarone, E=7003349192en_US
dc.identifier.scopusauthoridFeldman, PA=7103377526en_US
dc.identifier.scopusauthoridFich, M=7003964696en_US
dc.identifier.scopusauthoridFlorén, HG=6602447564en_US
dc.identifier.scopusauthoridFredrixon, M=6507543564en_US
dc.identifier.scopusauthoridFrisk, U=8966521600en_US
dc.identifier.scopusauthoridGahm, GF=6602703062en_US
dc.identifier.scopusauthoridGerin, M=7005195915en_US
dc.identifier.scopusauthoridHagström, M=6603823220en_US
dc.identifier.scopusauthoridHarju, J=8908583000en_US
dc.identifier.scopusauthoridHasegawa, T=7404173711en_US
dc.identifier.scopusauthoridHjalmarson, Å=15744175200en_US
dc.identifier.scopusauthoridJohansson, LEB=7401510283en_US
dc.identifier.scopusauthoridJusttanont, K=6701597318en_US
dc.identifier.scopusauthoridKlotz, A=7006976561en_US
dc.identifier.scopusauthoridKyrölä, E=35375397400en_US
dc.identifier.scopusauthoridKwok, S=22980498300en_US
dc.identifier.scopusauthoridLecacheux, A=7003423533en_US
dc.identifier.scopusauthoridLiljeström, T=6602325021en_US
dc.identifier.scopusauthoridLlewellyn, EJ=35376591700en_US
dc.identifier.scopusauthoridLundin, S=35782030700en_US
dc.identifier.scopusauthoridMégie, G=7006247122en_US
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dc.identifier.scopusauthoridNyman, LÅ=7006064444en_US
dc.identifier.scopusauthoridOlberg, M=16201342800en_US
dc.identifier.scopusauthoridOlofsson, AOH=7006322972en_US
dc.identifier.scopusauthoridOlofsson, G=7005783479en_US
dc.identifier.scopusauthoridOlofsson, H=7004294995en_US
dc.identifier.scopusauthoridPersson, G=16310371100en_US
dc.identifier.scopusauthoridPlume, R=7004220684en_US
dc.identifier.scopusauthoridRickman, H=6603822222en_US
dc.identifier.scopusauthoridRistorcelli, I=6701750764en_US
dc.identifier.scopusauthoridRydbeck, G=6602382899en_US
dc.identifier.scopusauthoridSandqvist, AA=35451841800en_US
dc.identifier.scopusauthoridSchéele, FV=6701436121en_US
dc.identifier.scopusauthoridSerra, G=7202261072en_US
dc.identifier.scopusauthoridTorchinsky, S=7801644176en_US
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dc.identifier.scopusauthoridWitt, G=7004984521en_US

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