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Article: Period measurement of AGB stars in the outer galactic disk

TitlePeriod measurement of AGB stars in the outer galactic disk
Authors
KeywordsGalaxy: Kinematics And Dynamics
Stars: Agb
Stars: Distance
Stars: Late-Type
Stars: Long-Period Variables
Stars: Stellar Dynamics
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. 2, p. 275-294 How to Cite?
AbstractThe light variation of the 47 AGB star candidates in the outer galactic disk has been monitored at the I-band for 5 years. Periods were well determined for 18 of them, and less reliably for the other 25. The average period of the objects is then 500 days. According to the period-luminosity relation, the mean luminosity of the sample stars is 10000 LC9;. Based on the absolute luminosity, derived from the period-luminosity relation and the apparent luminosity from the observation, the distances to the objects were determined. The calculated distances are slightly greater than those obtained previously based on the assumption of a constant luminosity of 8000 LC9;. In addition, SiO maser emission was detected for most of the observed objects, so that their radial velocities were accurately known. With the assumption of circular rotation in galactic disk, the rotation curve and Oort's constants were derived.
Persistent Identifierhttp://hdl.handle.net/10722/174795
ISSN
2015 Impact Factor: 1.961
2015 SCImago Journal Rankings: 0.804
References

 

DC FieldValueLanguage
dc.contributor.authorNakashima, Jen_US
dc.contributor.authorJiang, BWen_US
dc.contributor.authorDeguchi, Sen_US
dc.contributor.authorSadakane, Ken_US
dc.contributor.authorNakada, Yen_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. 2, p. 275-294en_US
dc.identifier.issn0004-6264en_US
dc.identifier.urihttp://hdl.handle.net/10722/174795-
dc.description.abstractThe light variation of the 47 AGB star candidates in the outer galactic disk has been monitored at the I-band for 5 years. Periods were well determined for 18 of them, and less reliably for the other 25. The average period of the objects is then 500 days. According to the period-luminosity relation, the mean luminosity of the sample stars is 10000 L&#25C9;. Based on the absolute luminosity, derived from the period-luminosity relation and the apparent luminosity from the observation, the distances to the objects were determined. The calculated distances are slightly greater than those obtained previously based on the assumption of a constant luminosity of 8000 L&#25C9;. In addition, SiO maser emission was detected for most of the observed objects, so that their radial velocities were accurately known. With the assumption of circular rotation in galactic disk, the rotation curve and Oort's constants were derived.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.subjectGalaxy: Kinematics And Dynamicsen_US
dc.subjectStars: Agben_US
dc.subjectStars: Distanceen_US
dc.subjectStars: Late-Typeen_US
dc.subjectStars: Long-Period Variablesen_US
dc.subjectStars: Stellar Dynamicsen_US
dc.titlePeriod measurement of AGB stars in the outer galactic disken_US
dc.typeArticleen_US
dc.identifier.emailNakashima, J: junichi@hku.hken_US
dc.identifier.authorityNakashima, J=rp00764en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0034348381en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034348381&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume52en_US
dc.identifier.issue2en_US
dc.identifier.spage275en_US
dc.identifier.epage294en_US
dc.publisher.placeJapanen_US
dc.identifier.scopusauthoridNakashima, J=35485342300en_US
dc.identifier.scopusauthoridJiang, BW=7402264869en_US
dc.identifier.scopusauthoridDeguchi, S=7006314159en_US
dc.identifier.scopusauthoridSadakane, K=7005716585en_US
dc.identifier.scopusauthoridNakada, Y=7102781029en_US

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