Электронный архив

First high-resolution Chandra LETGS spectrum of the transient supersoft X-ray source RX J0513.9-6951

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dc.contributor.author Burwitz V.
dc.contributor.author Reinsch K.
dc.contributor.author Greiner J.
dc.contributor.author Rauch T.
dc.contributor.author Suleimanov V.
dc.contributor.author Walter F.
dc.contributor.author Mennickent R.
dc.contributor.author Predehl P.
dc.date.accessioned 2018-09-18T20:07:37Z
dc.date.available 2018-09-18T20:07:37Z
dc.date.issued 2007
dc.identifier.issn 0273-1177
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/136762
dc.description.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 48 ks 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. © 2007 COSPAR.
dc.relation.ispartofseries Advances in Space Research
dc.subject Binaries: close
dc.subject Magellanic clouds
dc.subject Stars: individual: RX J0513.9-6951
dc.subject X-rays: stars
dc.title First high-resolution Chandra LETGS spectrum of the transient supersoft X-ray source RX J0513.9-6951
dc.type Article
dc.relation.ispartofseries-issue 8
dc.relation.ispartofseries-volume 40
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 1294
dc.source.id SCOPUS02731177-2007-40-8-SID35549008861


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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