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Article: Discovery of multiple coaxial rings in the quadrupolar planetary nebula NGC 6881
Title | Discovery of multiple coaxial rings in the quadrupolar planetary nebula NGC 6881 |
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Authors | |
Keywords | Planetary Nebulae: General Stars: Agb And Post-Agb Supernovae: General |
Issue Date | 2005 |
Publisher | Institute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205 |
Citation | Astrophysical Journal Letters, 2005, v. 635 n. 1 II, p. L49-L52 How to Cite? |
Abstract | We report the discovery of multiple two-dimensional rings in the quadrupolar planetary nebula NGC 6881. As many as four pairs of rings are seen in the bipolar lobes, and three rings are seen in the central torus. While the rings in the lobes have the same axis as one pair of the bipolar lobes, the inner rings are aligned with the other pair. The two pairs of bipolar lobes are likely to be carved out by two separate high-velocity outflows from the circumstellar material left over from the asymptotic giant branch (AGB) wind. The two-dimensional rings could be the results of dynamical instabilities or the consequence of a fast outflow interacting with remnants of discrete AGB circumstellar shells. © 2005. The American Astronomical Society. All rights reserved. |
Persistent Identifier | http://hdl.handle.net/10722/179692 |
ISSN | 2023 Impact Factor: 8.8 2023 SCImago Journal Rankings: 2.766 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Kwok, S | en_US |
dc.contributor.author | Su, KYL | en_US |
dc.date.accessioned | 2012-12-19T10:02:52Z | - |
dc.date.available | 2012-12-19T10:02:52Z | - |
dc.date.issued | 2005 | en_US |
dc.identifier.citation | Astrophysical Journal Letters, 2005, v. 635 n. 1 II, p. L49-L52 | en_US |
dc.identifier.issn | 2041-8205 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/179692 | - |
dc.description.abstract | We report the discovery of multiple two-dimensional rings in the quadrupolar planetary nebula NGC 6881. As many as four pairs of rings are seen in the bipolar lobes, and three rings are seen in the central torus. While the rings in the lobes have the same axis as one pair of the bipolar lobes, the inner rings are aligned with the other pair. The two pairs of bipolar lobes are likely to be carved out by two separate high-velocity outflows from the circumstellar material left over from the asymptotic giant branch (AGB) wind. The two-dimensional rings could be the results of dynamical instabilities or the consequence of a fast outflow interacting with remnants of discrete AGB circumstellar shells. © 2005. The American Astronomical Society. All rights reserved. | en_US |
dc.language | eng | en_US |
dc.publisher | Institute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205 | en_US |
dc.relation.ispartof | Astrophysical Journal Letters | en_US |
dc.subject | Planetary Nebulae: General | en_US |
dc.subject | Stars: Agb And Post-Agb | en_US |
dc.subject | Supernovae: General | en_US |
dc.title | Discovery of multiple coaxial rings in the quadrupolar planetary nebula NGC 6881 | en_US |
dc.type | Article | en_US |
dc.identifier.email | Kwok, S: deannote@hku.hk | en_US |
dc.identifier.authority | Kwok, S=rp00716 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1086/499332 | en_US |
dc.identifier.scopus | eid_2-s2.0-30544436819 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-30544436819&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 635 | en_US |
dc.identifier.issue | 1 II | en_US |
dc.identifier.spage | L49 | en_US |
dc.identifier.epage | L52 | en_US |
dc.identifier.isi | WOS:000233929700013 | - |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Kwok, S=22980498300 | en_US |
dc.identifier.scopusauthorid | Su, KYL=26326482200 | en_US |
dc.identifier.issnl | 2041-8205 | - |