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Article: Pilot VLBI Survey of SiO v = 3 J = 1->0 Maser Emission around Evolved Stars

TitlePilot VLBI Survey of SiO v = 3 J = 1->0 Maser Emission around Evolved Stars
Authors
KeywordsMasers, stars: AGB and post-AGB
Stars: individuals (WX Piscium, R Leonis, W Hydrae, T Cephei)
Issue Date2012
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, 2012, v. 64 n. 6, letter no. L6 How to Cite?
AbstractIn this letter, we report on detections of SiO v = 3 J = 1→0 maser emission in very long-baseline interferometric (VLBI) observations towards 4 out of 12 long-period variable stars: WX Psc, R Leo, W Hya, and T Cep. The detections towards WX Psc and T Cep are new ones. We also present successful astrometric observations of SiO v = 2 and v = 3 J = 1→0 maser emissions associated with two stars: WX Psc and W Hya and their position-reference continuum sources: J010746.0+131205 and J135146.8-291218 with the VLBI Exploration of Radio Astrometry (VERA). The relative coordinates of the position-reference continuum source and SiO v = 3 maser spots were measured with respect to those of an SiO v = 2 maser spot adopted as a fringe-phase reference. Thus, the faint continuum sources were inversely phase-referenced to the bright maser sources. This implies possible registration of multiple SiO maser line maps onto a common coordinate system with 10 microarcsecond-level accuracy.
Persistent Identifierhttp://hdl.handle.net/10722/181715
ISSN
2015 Impact Factor: 1.961
2015 SCImago Journal Rankings: 0.804

 

DC FieldValueLanguage
dc.contributor.authorImai, Hen_US
dc.contributor.authorOyadomari, Men_US
dc.contributor.authorChong, SNen_US
dc.contributor.authorNakagawa, Aen_US
dc.contributor.authorKurayama, Ten_US
dc.contributor.authorNakashima, JIen_US
dc.contributor.authorMatsumoto, Nen_US
dc.contributor.authorNagayama, Ten_US
dc.contributor.authorOyama, Ten_US
dc.contributor.authorMizuno, Sen_US
dc.contributor.authorDeguchi, Sen_US
dc.contributor.authorCho, SHen_US
dc.date.accessioned2013-03-19T03:54:39Z-
dc.date.available2013-03-19T03:54:39Z-
dc.date.issued2012en_US
dc.identifier.citationPublications of the Astronomical Society of Japan, 2012, v. 64 n. 6, letter no. L6en_US
dc.identifier.issn0004-6264-
dc.identifier.urihttp://hdl.handle.net/10722/181715-
dc.description.abstractIn this letter, we report on detections of SiO v = 3 J = 1→0 maser emission in very long-baseline interferometric (VLBI) observations towards 4 out of 12 long-period variable stars: WX Psc, R Leo, W Hya, and T Cep. The detections towards WX Psc and T Cep are new ones. We also present successful astrometric observations of SiO v = 2 and v = 3 J = 1→0 maser emissions associated with two stars: WX Psc and W Hya and their position-reference continuum sources: J010746.0+131205 and J135146.8-291218 with the VLBI Exploration of Radio Astrometry (VERA). The relative coordinates of the position-reference continuum source and SiO v = 3 maser spots were measured with respect to those of an SiO v = 2 maser spot adopted as a fringe-phase reference. Thus, the faint continuum sources were inversely phase-referenced to the bright maser sources. This implies possible registration of multiple SiO maser line maps onto a common coordinate system with 10 microarcsecond-level accuracy.-
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.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectMasers, stars: AGB and post-AGB-
dc.subjectStars: individuals (WX Piscium, R Leonis, W Hydrae, T Cephei)-
dc.titlePilot VLBI Survey of SiO v = 3 J = 1->0 Maser Emission around Evolved Starsen_US
dc.typeArticleen_US
dc.identifier.emailNakashima, JI: junichi@hku.hken_US
dc.identifier.authorityNakashima, J=rp00764en_US
dc.description.naturepostprint-
dc.identifier.hkuros213501en_US
dc.identifier.volume64en_US
dc.identifier.issue6-
dc.identifier.spageletter no. L6en_US
dc.identifier.epageletter no. L6en_US
dc.publisher.placeJapan-

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