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Article: Energy distributions of symbiotic novae
Title | Energy distributions of symbiotic novae |
---|---|
Authors | |
Keywords | Infrared: Spectra Stars: Circumstellar Shells Stars: Symbiotic Ultraviolet: Spectra |
Issue Date | 1991 |
Publisher | Institute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/0004-637X |
Citation | The Astrophysical Journal, 1991, v. 368 n. 1, p. 252-260 How to Cite? |
Abstract | The IRAS low-resolution spectra of three recent symbiotic novae (HM Sge. V1016 Cyg, and RR Tel) are fitted with a dust continuum radiative transfer model. We find that the dust shells are detached from the photosphere and that the sizes of the inner radii are correlated with times since outburst. An analysis of the IUE spectra of HM Sge at different epochs suggests that the strength of the 2200 Å feature is decreasing with time and the grains responsible for the feature are probably formed in the white dwarf ejecta. A complete accounting of the entire energy budget from radio to X-ray shows that most of the energy is emitted by the cool component in the infrared, and a significant fraction of the flux of the hot component is escaping in the far-ultraviolet. The density-bounded nature of the circumstellar gas nebulae could be the result of a bipolar geometry of the nebulae. Unlike classical novae, the optical outburst of symbiotic novae is due to the ionization of the preexisting envelope of the cool component and is not the result of a sudden ejection by the hot component. |
Persistent Identifier | http://hdl.handle.net/10722/179631 |
ISSN | 2023 Impact Factor: 4.8 2023 SCImago Journal Rankings: 1.905 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bryan, GL | en_US |
dc.contributor.author | Kwok, S | en_US |
dc.date.accessioned | 2012-12-19T10:02:10Z | - |
dc.date.available | 2012-12-19T10:02:10Z | - |
dc.date.issued | 1991 | en_US |
dc.identifier.citation | The Astrophysical Journal, 1991, v. 368 n. 1, p. 252-260 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/179631 | - |
dc.description.abstract | The IRAS low-resolution spectra of three recent symbiotic novae (HM Sge. V1016 Cyg, and RR Tel) are fitted with a dust continuum radiative transfer model. We find that the dust shells are detached from the photosphere and that the sizes of the inner radii are correlated with times since outburst. An analysis of the IUE spectra of HM Sge at different epochs suggests that the strength of the 2200 Å feature is decreasing with time and the grains responsible for the feature are probably formed in the white dwarf ejecta. A complete accounting of the entire energy budget from radio to X-ray shows that most of the energy is emitted by the cool component in the infrared, and a significant fraction of the flux of the hot component is escaping in the far-ultraviolet. The density-bounded nature of the circumstellar gas nebulae could be the result of a bipolar geometry of the nebulae. Unlike classical novae, the optical outburst of symbiotic novae is due to the ionization of the preexisting envelope of the cool component and is not the result of a sudden ejection by the hot component. | 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/0004-637X | en_US |
dc.relation.ispartof | The Astrophysical Journal | en_US |
dc.subject | Infrared: Spectra | en_US |
dc.subject | Stars: Circumstellar Shells | en_US |
dc.subject | Stars: Symbiotic | en_US |
dc.subject | Ultraviolet: Spectra | en_US |
dc.title | Energy distributions of symbiotic novae | 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 | published_or_final_version | en_US |
dc.identifier.doi | 10.1086/169688 | - |
dc.identifier.scopus | eid_2-s2.0-0000228334 | en_US |
dc.identifier.volume | 368 | en_US |
dc.identifier.issue | 1 | en_US |
dc.identifier.spage | 252 | en_US |
dc.identifier.epage | 260 | en_US |
dc.identifier.isi | WOS:A1991EU50800024 | - |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Bryan, GL=7102268958 | en_US |
dc.identifier.scopusauthorid | Kwok, S=22980498300 | en_US |
dc.identifier.issnl | 0004-637X | - |