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Article: An infrared imaging study of the bipolar proto-planetary nebula IRAS 16594-4656
Title | An infrared imaging study of the bipolar proto-planetary nebula IRAS 16594-4656 |
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Authors | |
Keywords | Circumstellar matter Infrared: ISM Infrared: stars Planetary nebulae: general Stars: AGB and post-AGB |
Issue Date | 2006 |
Publisher | Institute 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? |
Abstract | High-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 Identifier | http://hdl.handle.net/10722/80668 |
ISSN | 2023 Impact Factor: 8.8 2023 SCImago Journal Rankings: 2.766 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Volk, K | en_HK |
dc.contributor.author | Hrivnak, BJ | en_HK |
dc.contributor.author | Su, KYL | en_HK |
dc.contributor.author | Kwok, S | en_HK |
dc.date.accessioned | 2010-09-06T08:08:59Z | - |
dc.date.available | 2010-09-06T08:08:59Z | - |
dc.date.issued | 2006 | en_HK |
dc.identifier.citation | Astrophysical Journal Letters, 2006, v. 651 n. 1 I, p. 294-300 | en_HK |
dc.identifier.issn | 2041-8205 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/80668 | - |
dc.description.abstract | High-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.language | eng | en_HK |
dc.publisher | Institute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205 | en_HK |
dc.relation.ispartof | Astrophysical Journal Letters | en_HK |
dc.rights | The Astrophysical Journal. Copyright © University of Chicago Press. | en_HK |
dc.subject | Circumstellar matter | en_HK |
dc.subject | Infrared: ISM | en_HK |
dc.subject | Infrared: stars | en_HK |
dc.subject | Planetary nebulae: general | en_HK |
dc.subject | Stars: AGB and post-AGB | en_HK |
dc.title | An infrared imaging study of the bipolar proto-planetary nebula IRAS 16594-4656 | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://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+16594-4656 | en_HK |
dc.identifier.email | Kwok, S: deannote@hku.hk | en_HK |
dc.identifier.authority | Kwok, S=rp00716 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1086/507666 | en_HK |
dc.identifier.scopus | eid_2-s2.0-33845694648 | en_HK |
dc.identifier.hkuros | 124996 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-33845694648&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 651 | en_HK |
dc.identifier.issue | 1 I | en_HK |
dc.identifier.spage | 294 | en_HK |
dc.identifier.epage | 300 | en_HK |
dc.identifier.isi | WOS:000241824300026 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Volk, K=7006571965 | en_HK |
dc.identifier.scopusauthorid | Hrivnak, BJ=35613962100 | en_HK |
dc.identifier.scopusauthorid | Su, KYL=26326482200 | en_HK |
dc.identifier.scopusauthorid | Kwok, S=22980498300 | en_HK |
dc.identifier.issnl | 2041-8205 | - |