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Article: Probing the nebular thermal structure using the he i recombination spectrum and evidence against temperature fluctuations and density inhomogeneities
Title | Probing the nebular thermal structure using the he i recombination spectrum and evidence against temperature fluctuations and density inhomogeneities |
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Authors | |
Issue Date | 2006 |
Citation | Eso Astrophysics Symposia, 2006, v. 2006, p. 190-191 How to Cite? |
Abstract | A long-standing problem in nebular astrophysics has been that heavy element abundances derived from collisionally excited lines (CELs) are systematically lower than those derived from optical recombination lines (ORLs). A chemically homogeneous nebula with temperature and density variations fails to account for the discrepancy (c.f. [3]). Instead detailed multi-waveband analyses of a large sample point to the presence of H-deficient condensations embedded in diffuse nebulae [2,8,9]. The 2-abundance model, first proposed by Liu et al. [4], predicts that 2006 Springer. |
Persistent Identifier | http://hdl.handle.net/10722/175034 |
ISSN | |
References |
DC Field | Value | Language |
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dc.contributor.author | Zhang, Y | en_US |
dc.contributor.author | Liu, XW | en_US |
dc.contributor.author | Liu, Y | en_US |
dc.date.accessioned | 2012-11-26T08:48:52Z | - |
dc.date.available | 2012-11-26T08:48:52Z | - |
dc.date.issued | 2006 | en_US |
dc.identifier.citation | Eso Astrophysics Symposia, 2006, v. 2006, p. 190-191 | en_US |
dc.identifier.issn | 1431-2433 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/175034 | - |
dc.description.abstract | A long-standing problem in nebular astrophysics has been that heavy element abundances derived from collisionally excited lines (CELs) are systematically lower than those derived from optical recombination lines (ORLs). A chemically homogeneous nebula with temperature and density variations fails to account for the discrepancy (c.f. [3]). Instead detailed multi-waveband analyses of a large sample point to the presence of H-deficient condensations embedded in diffuse nebulae [2,8,9]. The 2-abundance model, first proposed by Liu et al. [4], predicts that 2006 Springer. | en_US |
dc.language | eng | en_US |
dc.relation.ispartof | ESO Astrophysics Symposia | en_US |
dc.title | Probing the nebular thermal structure using the he i recombination spectrum and evidence against temperature fluctuations and density inhomogeneities | en_US |
dc.type | Article | en_US |
dc.identifier.email | Zhang, Y: zhangy96@hku.hk | en_US |
dc.identifier.authority | Zhang, Y=rp00841 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1007/3-540-34270-2_24 | en_US |
dc.identifier.scopus | eid_2-s2.0-33748904548 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-33748904548&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 2006 | en_US |
dc.identifier.spage | 190 | en_US |
dc.identifier.epage | 191 | en_US |
dc.publisher.place | Germany | en_US |
dc.identifier.scopusauthorid | Zhang, Y=23768446500 | en_US |
dc.identifier.scopusauthorid | Liu, XW=7409287288 | en_US |
dc.identifier.scopusauthorid | Liu, Y=36064406700 | en_US |
dc.identifier.citeulike | 798162 | - |
dc.identifier.issnl | 1431-2433 | - |