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Article: Detections of SiO and H2O masers in the bipolar nebula IRAS 19312+1950

TitleDetections of SiO and H2O masers in the bipolar nebula IRAS 19312+1950
Authors
KeywordsIsm: Molecules
Masers
Planetary Nebulae: Individual (Iras 19312+1950
Stars: Agb And Post-Agb
Stars: Mass-Loss
Issue Date2000
PublisherNihon Tenmon Gakkai. The Journal's web site is located at http://www.asj.or.jp/pasj/
Citation
Publications Of The Astronomical Society Of Japan, 2000, v. 52 n. 5, p. L43-L46 How to Cite?
AbstractWe report on the detection of SiO and H2O masers toward a newly found bipolar nebula, IRAS 19312+1950. This object exhibits extreme red IRAS color [ log(F25/F12) = 0.5 and log(F60/F25) = 0.7 ] and a nebulosity having a size of about 30″ extended to the south-west in the 2MASS near-infrared image. Toward this object, we have detected emission from the H2O 6(1,6)-5(2,3) transition, the SiO J = 1-0, v = 1 and 2, and J = 2-1, v = 1 transitions, and the SO 2(2)-1(1) and H13CN J = 1-0 transitions. The thermal lines of SO and H13CN are shifted by about 12 km s-1 in radial velocity with respect to the maser lines, indicating that thermal emission comes from the background molecular cloud. However, the SiO J - 2-1, v = 2 spectrum shows another component of SiO emission separated by 26 km s-1 from the main component, that might be formed in a rotating or expanding shell.
Persistent Identifierhttp://hdl.handle.net/10722/174796
ISSN
2015 Impact Factor: 1.961
2015 SCImago Journal Rankings: 0.804
References

 

DC FieldValueLanguage
dc.contributor.authorNakashima, JIen_US
dc.contributor.authorDeguchi, Sen_US
dc.date.accessioned2012-11-26T08:47:29Z-
dc.date.available2012-11-26T08:47:29Z-
dc.date.issued2000en_US
dc.identifier.citationPublications Of The Astronomical Society Of Japan, 2000, v. 52 n. 5, p. L43-L46en_US
dc.identifier.issn0004-6264en_US
dc.identifier.urihttp://hdl.handle.net/10722/174796-
dc.description.abstractWe report on the detection of SiO and H2O masers toward a newly found bipolar nebula, IRAS 19312+1950. This object exhibits extreme red IRAS color [ log(F25/F12) = 0.5 and log(F60/F25) = 0.7 ] and a nebulosity having a size of about 30″ extended to the south-west in the 2MASS near-infrared image. Toward this object, we have detected emission from the H2O 6(1,6)-5(2,3) transition, the SiO J = 1-0, v = 1 and 2, and J = 2-1, v = 1 transitions, and the SO 2(2)-1(1) and H13CN J = 1-0 transitions. The thermal lines of SO and H13CN are shifted by about 12 km s-1 in radial velocity with respect to the maser lines, indicating that thermal emission comes from the background molecular cloud. However, the SiO J - 2-1, v = 2 spectrum shows another component of SiO emission separated by 26 km s-1 from the main component, that might be formed in a rotating or expanding shell.en_US
dc.languageengen_US
dc.publisherNihon Tenmon Gakkai. The Journal's web site is located at http://www.asj.or.jp/pasj/en_US
dc.relation.ispartofPublications of the Astronomical Society of Japanen_US
dc.subjectIsm: Moleculesen_US
dc.subjectMasersen_US
dc.subjectPlanetary Nebulae: Individual (Iras 19312+1950en_US
dc.subjectStars: Agb And Post-Agben_US
dc.subjectStars: Mass-Lossen_US
dc.titleDetections of SiO and H2O masers in the bipolar nebula IRAS 19312+1950en_US
dc.typeArticleen_US
dc.identifier.emailNakashima, JI: junichi@hku.hken_US
dc.identifier.authorityNakashima, JI=rp00764en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0034358453en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034358453&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume52en_US
dc.identifier.issue5en_US
dc.identifier.spageL43en_US
dc.identifier.epageL46en_US
dc.publisher.placeJapanen_US
dc.identifier.scopusauthoridNakashima, JI=35485342300en_US
dc.identifier.scopusauthoridDeguchi, S=7006314159en_US

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