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Article: Identification of very red counterparts of SiO maser and OH/IR objects in the GLIMPSE survey

TitleIdentification of very red counterparts of SiO maser and OH/IR objects in the GLIMPSE survey
Authors
KeywordsInfrared: stars
Radio lines: stars
Stars: AGB and post-AGB
Stars: mass loss
Issue Date2007
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 2007, v. 664 n. 2 I, p. 1130-1143 How to Cite?
AbstractUsing the 3.6, 4.5, 5.8, and 8.0 μm images with 1.2″ pixel resolution of the Spitzer/GLIMPSE survey, we investigated 23 masing and 18 very red objects, which are extremely faint in the near-infrared bands. We found the counterparts for all of the selected objects on the GLIMPSE images. Color indices in these IR bands suggest the presence of a high-extinction layer of more than a few tenths of a solar mass in front of the central star. Furthermore, radio observations in the SiO and H 2O maser lines found characteristic maser-line spectra of the embedded objects, e.g., the SiO J = 1-0 line intensity in the v = 2 state is stronger than that of the v = 1 state, or very widespread H 2O maser emission spectra. These facts indicate that these objects are really enshrouded by very thick circumstellar matter, some of which cannot be ascribed to the AGB wind of the central star. Individually interesting objects are discussed, including two newly found water fountains and an SiO source accompanying a nebulosity. © 2007. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/81081
ISSN
2015 Impact Factor: 5.487
2015 SCImago Journal Rankings: 3.369
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorDeguchi, Sen_HK
dc.contributor.authorNakashima, JIen_HK
dc.contributor.authorKwok, Sen_HK
dc.contributor.authorKoning, Nen_HK
dc.date.accessioned2010-09-06T08:13:32Z-
dc.date.available2010-09-06T08:13:32Z-
dc.date.issued2007en_HK
dc.identifier.citationAstrophysical Journal Letters, 2007, v. 664 n. 2 I, p. 1130-1143en_HK
dc.identifier.issn2041-8205en_HK
dc.identifier.urihttp://hdl.handle.net/10722/81081-
dc.description.abstractUsing the 3.6, 4.5, 5.8, and 8.0 μm images with 1.2″ pixel resolution of the Spitzer/GLIMPSE survey, we investigated 23 masing and 18 very red objects, which are extremely faint in the near-infrared bands. We found the counterparts for all of the selected objects on the GLIMPSE images. Color indices in these IR bands suggest the presence of a high-extinction layer of more than a few tenths of a solar mass in front of the central star. Furthermore, radio observations in the SiO and H 2O maser lines found characteristic maser-line spectra of the embedded objects, e.g., the SiO J = 1-0 line intensity in the v = 2 state is stronger than that of the v = 1 state, or very widespread H 2O maser emission spectra. These facts indicate that these objects are really enshrouded by very thick circumstellar matter, some of which cannot be ascribed to the AGB wind of the central star. Individually interesting objects are discussed, including two newly found water fountains and an SiO source accompanying a nebulosity. © 2007. The American Astronomical Society. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205en_HK
dc.relation.ispartofAstrophysical Journal Lettersen_HK
dc.rightsThe Astrophysical Journal. Copyright © University of Chicago Press.en_HK
dc.subjectInfrared: starsen_HK
dc.subjectRadio lines: starsen_HK
dc.subjectStars: AGB and post-AGBen_HK
dc.subjectStars: mass lossen_HK
dc.titleIdentification of very red counterparts of SiO maser and OH/IR objects in the GLIMPSE surveyen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0004-637X&volume=664&spage=1130&epage=1143&date=2007&atitle=Identification+of+Very+Red+Counterparts+of+SiO+Maser+and+OH/IR+Objects+in+the+GLIMPSE+Surveyen_HK
dc.identifier.emailNakashima, JI: junichi@hku.hken_HK
dc.identifier.emailKwok, S: deannote@hku.hken_HK
dc.identifier.authorityNakashima, JI=rp00764en_HK
dc.identifier.authorityKwok, S=rp00716en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1086/519154en_HK
dc.identifier.scopuseid_2-s2.0-34548028005en_HK
dc.identifier.hkuros133757en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34548028005&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume664en_HK
dc.identifier.issue2 Ien_HK
dc.identifier.spage1130en_HK
dc.identifier.epage1143en_HK
dc.identifier.isiWOS:000248675000045-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridDeguchi, S=7006314159en_HK
dc.identifier.scopusauthoridNakashima, JI=35485342300en_HK
dc.identifier.scopusauthoridKwok, S=22980498300en_HK
dc.identifier.scopusauthoridKoning, N=15520613500en_HK

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