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Article: H2 imaging of three proto-planetary and young planetary nebulae

TitleH2 imaging of three proto-planetary and young planetary nebulae
Authors
KeywordsCircumstellar Matter
Infrared: Ism
Infrared: Stars
Ism: Lines And Bands
Planetary Nebulae: General
Stars: Agb And Post-Agb
Issue Date2004
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/0004-637X
Citation
The Astrophysical Journal, 2004, v. 616 n. 2 pt. 1, p. 1181-1187 How to Cite?
AbstractHigh-resolution (0′15) 2.12 μm H 2 and narrowband K images have been obtained of one cool proto-planetary nebula, IRAS 20028+3910, and two hot proto-planetary/young planetary nebulae, IRAS 19306+1407 and IRAS 22023+5249. The observations were made with an adaptive optics system and near-infrared imager on the Gemini North 8 m telescope. All three nebulae are seen to be extended, and in two and possibly all three of them H 2 is found to be emitting from bipolar lobes. In IRAS 19306+1407, H 2 emission is seen arising from a ring close to the star and from the edges of emerging bipolar lobes. In IRAS 20028+3910, one bright lobe and a very faint second lobe are seen in the H 2 and K-band images, similar to the published visible images, but in the H 2 and K-band images a faint filament appears to connect the two lobes. The central star is not seen in IRAS 20028+3910, indicating that the nebula is optically thick even at 2 μm, which is unusual. The images suggest that extended H 2 emission is often the manifestation of fast-slow wind interactions in the bipolar lobes.
Persistent Identifierhttp://hdl.handle.net/10722/179674
ISSN
2015 Impact Factor: 5.909
2015 SCImago Journal Rankings: 3.266
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorVolk, Ken_US
dc.contributor.authorHrivnak, BJen_US
dc.contributor.authorKwok, Sen_US
dc.date.accessioned2012-12-19T10:02:45Z-
dc.date.available2012-12-19T10:02:45Z-
dc.date.issued2004en_US
dc.identifier.citationThe Astrophysical Journal, 2004, v. 616 n. 2 pt. 1, p. 1181-1187en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/179674-
dc.description.abstractHigh-resolution (0′15) 2.12 μm H 2 and narrowband K images have been obtained of one cool proto-planetary nebula, IRAS 20028+3910, and two hot proto-planetary/young planetary nebulae, IRAS 19306+1407 and IRAS 22023+5249. The observations were made with an adaptive optics system and near-infrared imager on the Gemini North 8 m telescope. All three nebulae are seen to be extended, and in two and possibly all three of them H 2 is found to be emitting from bipolar lobes. In IRAS 19306+1407, H 2 emission is seen arising from a ring close to the star and from the edges of emerging bipolar lobes. In IRAS 20028+3910, one bright lobe and a very faint second lobe are seen in the H 2 and K-band images, similar to the published visible images, but in the H 2 and K-band images a faint filament appears to connect the two lobes. The central star is not seen in IRAS 20028+3910, indicating that the nebula is optically thick even at 2 μm, which is unusual. The images suggest that extended H 2 emission is often the manifestation of fast-slow wind interactions in the bipolar lobes.en_US
dc.languageengen_US
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/0004-637Xen_US
dc.relation.ispartofThe Astrophysical Journalen_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectCircumstellar Matteren_US
dc.subjectInfrared: Ismen_US
dc.subjectInfrared: Starsen_US
dc.subjectIsm: Lines And Bandsen_US
dc.subjectPlanetary Nebulae: Generalen_US
dc.subjectStars: Agb And Post-Agben_US
dc.titleH2 imaging of three proto-planetary and young planetary nebulaeen_US
dc.typeArticleen_US
dc.identifier.emailKwok, S: deannote@hku.hken_US
dc.identifier.authorityKwok, S=rp00716en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1086/425124en_US
dc.identifier.scopuseid_2-s2.0-11144301818en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-11144301818&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume616en_US
dc.identifier.issue2 pt. 1en_US
dc.identifier.spage1181en_US
dc.identifier.epage1187en_US
dc.identifier.isiWOS:000225418100042-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridVolk, K=7006571965en_US
dc.identifier.scopusauthoridHrivnak, BJ=35613962100en_US
dc.identifier.scopusauthoridKwok, S=22980498300en_US

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