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Article: An infrared imaging study of the bipolar proto-planetary nebula IRAS 16594-4656

TitleAn infrared imaging study of the bipolar proto-planetary nebula IRAS 16594-4656
Authors
KeywordsCircumstellar matter
Infrared: ISM
Infrared: stars
Planetary nebulae: general
Stars: AGB and post-AGB
Issue Date2006
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 2006, v. 651 n. 1 I, p. 294-300 How to Cite?
AbstractHigh-resolution mid-infrared images have been obtained in N and Q band for the proto-planetary nebula IRAS 16594-4656. A bright equatorial torus and a pair of bipolar lobes can clearly be seen in the infrared images. The torus appears thinner at the center than at the edges, suggesting that it is viewed nearly edge-on. The infrared lobes correspond to the brightest lobes of the reflection nebula seen in the Bubble Space Telescope (HST) optical image, but with no sign of the point-symmetric structure seen in the visible image. The lobe structure shows a close correspondence with a molecular hydrogen map obtained with HST, suggesting that the dust emission in the lobes traces the distribution of the shocked gas. The shape of the bipolar lobes shows clearly that the fast outflow is still confined by the remnant circumstellar envelope of the progenitor asymptotic giant branch (AGB) star. However, the nondetection of the dust outside of the lobes suggests that the temperature of the dust in the AGB envelope is too low for it to be detected at 20 μm. © 2006. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/80668
ISSN
2015 Impact Factor: 5.487
2015 SCImago Journal Rankings: 3.369
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorVolk, Ken_HK
dc.contributor.authorHrivnak, BJen_HK
dc.contributor.authorSu, KYLen_HK
dc.contributor.authorKwok, Sen_HK
dc.date.accessioned2010-09-06T08:08:59Z-
dc.date.available2010-09-06T08:08:59Z-
dc.date.issued2006en_HK
dc.identifier.citationAstrophysical Journal Letters, 2006, v. 651 n. 1 I, p. 294-300en_HK
dc.identifier.issn2041-8205en_HK
dc.identifier.urihttp://hdl.handle.net/10722/80668-
dc.description.abstractHigh-resolution mid-infrared images have been obtained in N and Q band for the proto-planetary nebula IRAS 16594-4656. A bright equatorial torus and a pair of bipolar lobes can clearly be seen in the infrared images. The torus appears thinner at the center than at the edges, suggesting that it is viewed nearly edge-on. The infrared lobes correspond to the brightest lobes of the reflection nebula seen in the Bubble Space Telescope (HST) optical image, but with no sign of the point-symmetric structure seen in the visible image. The lobe structure shows a close correspondence with a molecular hydrogen map obtained with HST, suggesting that the dust emission in the lobes traces the distribution of the shocked gas. The shape of the bipolar lobes shows clearly that the fast outflow is still confined by the remnant circumstellar envelope of the progenitor asymptotic giant branch (AGB) star. However, the nondetection of the dust outside of the lobes suggests that the temperature of the dust in the AGB envelope is too low for it to be detected at 20 μm. © 2006. 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.subjectCircumstellar matteren_HK
dc.subjectInfrared: ISMen_HK
dc.subjectInfrared: starsen_HK
dc.subjectPlanetary nebulae: generalen_HK
dc.subjectStars: AGB and post-AGBen_HK
dc.titleAn infrared imaging study of the bipolar proto-planetary nebula IRAS 16594-4656en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0004-637X&volume=651&spage=294&epage=300&date=2006&atitle=An+Infrared+Imaging+Study+of+the+Bipolar+Proto-Planetary+Nebula+IRAS+16594-4656en_HK
dc.identifier.emailKwok, S: deannote@hku.hken_HK
dc.identifier.authorityKwok, S=rp00716en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1086/507666en_HK
dc.identifier.scopuseid_2-s2.0-33845694648en_HK
dc.identifier.hkuros124996en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33845694648&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume651en_HK
dc.identifier.issue1 Ien_HK
dc.identifier.spage294en_HK
dc.identifier.epage300en_HK
dc.identifier.isiWOS:000241824300026-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridVolk, K=7006571965en_HK
dc.identifier.scopusauthoridHrivnak, BJ=35613962100en_HK
dc.identifier.scopusauthoridSu, KYL=26326482200en_HK
dc.identifier.scopusauthoridKwok, S=22980498300en_HK

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