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Article: A circular planetary nebula around the OH/IR star OH 354.88-0.54 (V1018 Sco)

TitleA circular planetary nebula around the OH/IR star OH 354.88-0.54 (V1018 Sco)
Authors
KeywordsStars: AGB and post-AGB
Planetary nebulae: General
Masers
Issue Date2005
Citation
Monthly Notices of the Royal Astronomical Society, 2005, v. 357, n. 4, p. 1189-1196 How to Cite?
AbstractNew deep, high-resolution Ha imagery from the UK Schmidt Telescope (UKST) Unit's Ha survey of the Southern Galactic Plane reveals the presence of a faint, highly circular, planetary nebula (PN) surrounding a very long-period variable star (now known as V1018 Sco), first discovered as a 1612-MHz OH maser, OH 354.88-0.54. The nebular phase-lag distance, diameter and radial velocity are 3.2 kpc, 0.3 pc and 13 km s -1, respectively. Combining the maser attributes with near-, mid- and far-infrared data and with our optical spectrum of the ring we conclude that the object was an intermediate-mass asymptotic giant branch (AGB) star (initial stellar mass ≥ 4M⊙) in which the fast wind has recently turned on, ionizing previously shed circumstellar material. Hence, we speculate that we may be witnessing a hitherto unobserved phase of PN evolution, in which a PN has only recently started to form around a star that is unequivocally still in its AGB phase. © 2005 RAS.
Persistent Identifierhttp://hdl.handle.net/10722/208834
ISSN
2015 Impact Factor: 4.952
2015 SCImago Journal Rankings: 2.806

 

DC FieldValueLanguage
dc.contributor.authorCohen, Martin G.-
dc.contributor.authorParker, Quentin A.-
dc.contributor.authorChapman, Jessica M.-
dc.date.accessioned2015-03-23T02:01:51Z-
dc.date.available2015-03-23T02:01:51Z-
dc.date.issued2005-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2005, v. 357, n. 4, p. 1189-1196-
dc.identifier.issn0035-8711-
dc.identifier.urihttp://hdl.handle.net/10722/208834-
dc.description.abstractNew deep, high-resolution Ha imagery from the UK Schmidt Telescope (UKST) Unit's Ha survey of the Southern Galactic Plane reveals the presence of a faint, highly circular, planetary nebula (PN) surrounding a very long-period variable star (now known as V1018 Sco), first discovered as a 1612-MHz OH maser, OH 354.88-0.54. The nebular phase-lag distance, diameter and radial velocity are 3.2 kpc, 0.3 pc and 13 km s -1, respectively. Combining the maser attributes with near-, mid- and far-infrared data and with our optical spectrum of the ring we conclude that the object was an intermediate-mass asymptotic giant branch (AGB) star (initial stellar mass ≥ 4M⊙) in which the fast wind has recently turned on, ionizing previously shed circumstellar material. Hence, we speculate that we may be witnessing a hitherto unobserved phase of PN evolution, in which a PN has only recently started to form around a star that is unequivocally still in its AGB phase. © 2005 RAS.-
dc.languageeng-
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society-
dc.subjectStars: AGB and post-AGB-
dc.subjectPlanetary nebulae: General-
dc.subjectMasers-
dc.titleA circular planetary nebula around the OH/IR star OH 354.88-0.54 (V1018 Sco)-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1365-2966.2005.08684.x-
dc.identifier.scopuseid_2-s2.0-15244354216-
dc.identifier.volume357-
dc.identifier.issue4-
dc.identifier.spage1189-
dc.identifier.epage1196-

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