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Article: Near-infrared observations of the IRAS/SiO sources in the Galactic bulge: A large scale distribution

TitleNear-infrared observations of the IRAS/SiO sources in the Galactic bulge: A large scale distribution
Authors
KeywordsGalaxies: Milky Way
Infrared: Sources
Stars: Kinematics
Stars: Long-Period Variables
Stars: Mass-Loss
Issue Date2002
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, 2002, v. 54 n. 5, p. 719-734 How to Cite?
AbstractNear-infrared photometric obserwttions in the J-, H-, and K-bands were made for 120 IRAS sources toward the Galactic bulge (-10° < l < 15° and |b| < 3°, excluding |l| < 3°). They are well-confirmed, mass-losing late-type stars having accurate radial velocities derived from SiO maser observations. For 118 sources, single, unambiguous near-infrared counterparts were found within the errors of the IRAS/MSX positions; and for the other 2 sources, faint candidates only detectable in the K-band were found. From the J-, H-, K-band and IRAS 12 and 25 μm intensities, we estimated the spectral energy distributions of the sources, and obtained distances assuming a constant intrinsic luminosity. Adding all of the distance data of the IRAS/SiO sources in -10° < l < 25° published in previous papers, we mapped the positions of 272 sampled stars onto the Galactic plane. The map clearly shows a bar structure, where the major axis of the bar is oriented 22°(±8°) from the Sun-Galactic center line. We also reanalyzed the radial-velocity shift with the distance in this sample. These analyses suggest that the data are consistent with the current bar theory of the Galactic bulge.
Persistent Identifierhttp://hdl.handle.net/10722/174823
ISSN
2015 Impact Factor: 1.961
2015 SCImago Journal Rankings: 0.804
References

 

DC FieldValueLanguage
dc.contributor.authorDeguchi, Sen_US
dc.contributor.authorFujii, Ten_US
dc.contributor.authorNakashima, JIen_US
dc.contributor.authorWood, PRen_US
dc.date.accessioned2012-11-26T08:47:41Z-
dc.date.available2012-11-26T08:47:41Z-
dc.date.issued2002en_US
dc.identifier.citationPublications Of The Astronomical Society Of Japan, 2002, v. 54 n. 5, p. 719-734en_US
dc.identifier.issn0004-6264en_US
dc.identifier.urihttp://hdl.handle.net/10722/174823-
dc.description.abstractNear-infrared photometric obserwttions in the J-, H-, and K-bands were made for 120 IRAS sources toward the Galactic bulge (-10° < l < 15° and |b| < 3°, excluding |l| < 3°). They are well-confirmed, mass-losing late-type stars having accurate radial velocities derived from SiO maser observations. For 118 sources, single, unambiguous near-infrared counterparts were found within the errors of the IRAS/MSX positions; and for the other 2 sources, faint candidates only detectable in the K-band were found. From the J-, H-, K-band and IRAS 12 and 25 μm intensities, we estimated the spectral energy distributions of the sources, and obtained distances assuming a constant intrinsic luminosity. Adding all of the distance data of the IRAS/SiO sources in -10° < l < 25° published in previous papers, we mapped the positions of 272 sampled stars onto the Galactic plane. The map clearly shows a bar structure, where the major axis of the bar is oriented 22°(±8°) from the Sun-Galactic center line. We also reanalyzed the radial-velocity shift with the distance in this sample. These analyses suggest that the data are consistent with the current bar theory of the Galactic bulge.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.subjectGalaxies: Milky Wayen_US
dc.subjectInfrared: Sourcesen_US
dc.subjectStars: Kinematicsen_US
dc.subjectStars: Long-Period Variablesen_US
dc.subjectStars: Mass-Lossen_US
dc.titleNear-infrared observations of the IRAS/SiO sources in the Galactic bulge: A large scale distributionen_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-s2.0-0036460631en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036460631&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume54en_US
dc.identifier.issue5en_US
dc.identifier.spage719en_US
dc.identifier.epage734en_US
dc.publisher.placeJapanen_US
dc.identifier.scopusauthoridDeguchi, S=7006314159en_US
dc.identifier.scopusauthoridFujii, T=35407098300en_US
dc.identifier.scopusauthoridNakashima, JI=35485342300en_US
dc.identifier.scopusauthoridWood, PR=35249666800en_US

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