First high-resolution Chandra LETGS spectrum of the transient supersoft X-ray source RX J0513.9-6951
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| Title: | First high-resolution Chandra LETGS spectrum of the transient supersoft X-ray source RX J0513.9-6951 |
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| Authors: | Burwitz, V.1 burwitz@mpe.mpg.de, Reinsch, K.2, Greiner, J.1, Rauch, T.3, Suleimanov, V.3,4, Walter, F.W.5, Mennickent, R.E.6, Predehl, P.1 |
| Source: | Advances in Space Research. Sep2007, Vol. 40 Issue 8, p1294-1298. 5p. |
| Subjects: | Mass transfer, Astronomical photography, White dwarf stars, Spectrum analysis instruments |
| Abstract: | Abstract: The transient luminous soft X-ray source RX J0513.9-6951 in the large magellanic cloud is a key object within the class of accreting binary supersoft X-ray sources. In this system, mass-transfer is thought to occur close to the Eddington limit of a solar mass white dwarf. The source switches quasi-periodically between two physically distinct states with anti-correlated X-ray and optical luminosities. We have obtained the first high-resolution X-ray spectrum of RX J0513.9-6951 on December 24, 2003 during an X-ray bright state as a 48ks target of opportunity observation with the low energy transmission grating spectrograph (LETGS) on board Chandra. The X-ray observations were triggered using optical monitoring data obtained with ANDICAM on the 1.3-m telescope at Cerro Tololo, Chile of the SMARTS consortium. The X-ray spectrum deviates strongly from a smooth continuum and reveals complex structures which are probably a mixture of absorption and emission line patterns. Such features can be understood as a superposition of X-ray emission from a hot high-gravity stellar atmosphere and from an optically thin corona-like plasma enshrouding the system. Here, we present first results of our spectral analysis of the LETGS data using white dwarf atmosphere codes. [Copyright &y& Elsevier] |
| Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 26861299 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: First high-resolution Chandra LETGS spectrum of the transient supersoft X-ray source RX J0513.9-6951 – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Burwitz%2C+V%2E%22">Burwitz, V.</searchLink><relatesTo>1</relatesTo><i> burwitz@mpe.mpg.de</i><br /><searchLink fieldCode="AR" term="%22Reinsch%2C+K%2E%22">Reinsch, K.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Greiner%2C+J%2E%22">Greiner, J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rauch%2C+T%2E%22">Rauch, T.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Suleimanov%2C+V%2E%22">Suleimanov, V.</searchLink><relatesTo>3,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Walter%2C+F%2EW%2E%22">Walter, F.W.</searchLink><relatesTo>5</relatesTo><br /><searchLink fieldCode="AR" term="%22Mennickent%2C+R%2EE%2E%22">Mennickent, R.E.</searchLink><relatesTo>6</relatesTo><br /><searchLink fieldCode="AR" term="%22Predehl%2C+P%2E%22">Predehl, P.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Advances+in+Space+Research%22">Advances in Space Research</searchLink>. Sep2007, Vol. 40 Issue 8, p1294-1298. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Mass+transfer%22">Mass transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Astronomical+photography%22">Astronomical photography</searchLink><br /><searchLink fieldCode="DE" term="%22White+dwarf+stars%22">White dwarf stars</searchLink><br /><searchLink fieldCode="DE" term="%22Spectrum+analysis+instruments%22">Spectrum analysis instruments</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: The transient luminous soft X-ray source RX J0513.9-6951 in the large magellanic cloud is a key object within the class of accreting binary supersoft X-ray sources. In this system, mass-transfer is thought to occur close to the Eddington limit of a solar mass white dwarf. The source switches quasi-periodically between two physically distinct states with anti-correlated X-ray and optical luminosities. We have obtained the first high-resolution X-ray spectrum of RX J0513.9-6951 on December 24, 2003 during an X-ray bright state as a 48ks target of opportunity observation with the low energy transmission grating spectrograph (LETGS) on board Chandra. The X-ray observations were triggered using optical monitoring data obtained with ANDICAM on the 1.3-m telescope at Cerro Tololo, Chile of the SMARTS consortium. The X-ray spectrum deviates strongly from a smooth continuum and reveals complex structures which are probably a mixture of absorption and emission line patterns. Such features can be understood as a superposition of X-ray emission from a hot high-gravity stellar atmosphere and from an optically thin corona-like plasma enshrouding the system. Here, we present first results of our spectral analysis of the LETGS data using white dwarf atmosphere codes. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.asr.2006.11.036 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 1294 Subjects: – SubjectFull: Mass transfer Type: general – SubjectFull: Astronomical photography Type: general – SubjectFull: White dwarf stars Type: general – SubjectFull: Spectrum analysis instruments Type: general Titles: – TitleFull: First high-resolution Chandra LETGS spectrum of the transient supersoft X-ray source RX J0513.9-6951 Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Burwitz, V. – PersonEntity: Name: NameFull: Reinsch, K. – PersonEntity: Name: NameFull: Greiner, J. – PersonEntity: Name: NameFull: Rauch, T. – PersonEntity: Name: NameFull: Suleimanov, V. – PersonEntity: Name: NameFull: Walter, F.W. – PersonEntity: Name: NameFull: Mennickent, R.E. – PersonEntity: Name: NameFull: Predehl, P. IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 09 Text: Sep2007 Type: published Y: 2007 Identifiers: – Type: issn-print Value: 02731177 Numbering: – Type: volume Value: 40 – Type: issue Value: 8 Titles: – TitleFull: Advances in Space Research Type: main |
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