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Related papers: X-Ray Binary Systems in the Small Magellanic Cloud

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The spectral distributions of Be/X-ray binaries in the Large Magellanic Cloud and Galaxy have been shown to differ significantly from the distribution of isolated Be stars in the Galaxy. Population synthesis models can explain this…

Astrophysics · Physics 2009-11-13 V. A. McBride , M. J. Coe , I. Negueruela , M. P. E. Schurch , K. E. McGowan

This work represent the first major study of the optical and IR characteristics of the mass donor companions to the X-ray pulsars in the Small Magellanic Cloud (SMC). In this work several new counterparts have been identified, and possible…

Astrophysics · Physics 2009-11-10 M. J. Coe , W. R. T. Edge , J. L. Galache , V. A. McBride

About 200 X-ray sources from a sample of spectrally hard ROSAT PSPC sources, given in the catalog of Haberl & Pietsch (1999), and observed in a ~60 square degree field of the LMC during several archival pointed observations with a wide…

Astrophysics · Physics 2009-11-07 P. Kahabka

Supersoft X-ray sources (SSS) have been identified as white dwarfs accreting from binary companions and undergoing nuclear-burning of the accreted material on their surface. Although expected to be a relatively numerous population from both…

High Energy Astrophysical Phenomena · Physics 2020-09-30 G. Vasilopoulos , F. Koliopanos , T. E. Woods , F. Haberl , M. D. Soraisam , A. Udalski

We present the results of a spectroscopic investigation of two novel variable bright blue stars in the SMC, OGLE004336.91-732637.7 (SMC-SC3) and the periodically occulted star OGLE004633.76-731204.3 (SMC-SC4), whose photometric properties…

Solar and Stellar Astrophysics · Physics 2015-05-18 R. E. Mennickent , M. A. Smith

A probable binary period has been detected in the optical counterpart to the X-ray source CXOU J005455.6-724510 = RX J0054.9-7245 = AXJ0054.8-7244 = SXP504 in the Small Magellanic Cloud. This source was detected by Chandra on 04 Jul 2002…

The first INTEGRAL observations of the Small Magellanic Cloud (carried out in 2003) are reported in which two sources are clearly detected. The first source, SMC X-1, shows a hard X-ray eclipse and measurements of its pulse period indicate…

Recent observations of the Small Magellanic Cloud (SMC) with Einstein Probe (EP) revealed a new transient X-ray source, most likely identified as Be/X-ray binary. To characterise the X-ray properties of EP J005146.9-730930 and in particular…

High Energy Astrophysical Phenomena · Physics 2025-07-24 F. Haberl , Y. Xu , C. Maitra , G. Vasilopoulos , W. Zhang , W. Yuan , C. Jin , H. N. Yang , L. Ducci , D. M. Kaltenbrunner , P. Maggi , A. Rau

Optical and X-ray observations are presented here of a newly reported X-ray transient system in the Small Magellanic Cloud - SXP7.92. A detailed analysis of the X-ray data reveal a coherent period of 7.9s. A search through earlier X-ray…

High Energy Astrophysical Phenomena · Physics 2009-11-13 M. J. Coe , M. Schurch , V. A. McBride , R. H. D. Corbet , L. J. Townsend , A. Udalski , J. L. Galache

Results of a 4 year monitoring campaign of the SMC using the Rossi X-ray timing Explorer (RXTE) are presented. This large dataset makes possible detailed investigation of a significant sample of SMC X-ray binaries. 8 new X-ray pulsars were…

Astrophysics · Physics 2009-11-10 S. Laycock , R. H. D. Corbet , M. J. Coe , F. E. Marshall , C. Markwardt , J. Lochner

We study population of compact X-ray sources in the Small Magellanic Cloud using the archival data of XMM-Newton observatory. The total area of the survey is ~1.5 square degrees with the limiting sensitivity of ~10^{-14} erg/s/cm^2,…

Astrophysics · Physics 2016-08-30 P. Shtykovskiy , M. Gilfanov

We report on two optical candidates for the counterpart to an X-ray source in the SMC, 1WGA J0053.8-7226, identified as a serendipitous X-ray source from the ROSAT PSPC archive, and also observed by the Einstein IPC. Its X-ray properties,…

Context. Close binary supersoft X-ray sources (CBSS) are binary systems that contain a white dwarf with stable nuclear burning on its surface. These sources, first discovered in the Magellanic Clouds, have high accretion rates and…

Solar and Stellar Astrophysics · Physics 2015-05-19 A. S. Oliveira , J. E. Steiner , T. V. Ricci , R. B. Menezes , B. W. Borges

An XMM-Newton target of opportunity observation of the field around the transient 18.37 s pulsar XTE J0055-727 in the Small Magellanic Cloud (SMC) revealed two bright, long-period X-ray pulsars in the EPIC data. A new pulsar, XMMU…

Astrophysics · Physics 2009-11-10 F. Haberl , W. Pietsch , N. Schartel , P. Rodriguez , R. H. D. Corbet

The Large Magellanic Cloud (LMC) currently hosts around 23 high mass X-ray binaries (HMXBs) of which most are Be/X-ray binaries. The LMC XMM-Newton survey provided follow-up observations of previously known X-ray sources that were likely…

High Energy Astrophysical Phenomena · Physics 2017-12-20 N. van Jaarsveld , D. A. H. Buckley , V. A. McBride , F. Haberl , G. Vasilopoulos , C. Maitra , A. Udalski , B. Miszalski

The Small Magellanic Cloud (SMC) Be/X-ray binary pulsar SXP6.85 = XTE J0103-728 underwent a large Type II outburst beginning on 2008 August 10. The source was consistently seen for the following 20 weeks (MJD = 54688 - 54830). We present…

High Energy Astrophysical Phenomena · Physics 2015-05-14 L. J. Townsend , M. J. Coe , V. A. McBride , A. J. Bird , M. P. E. Schurch , R. H. D. Corbet , F. Haberl , J. L. Galache , A. Udalski

Located in the Small Magellanic Cloud (SMC), SXP214 is an X-ray pulsar in a high mass X-ray binary system with a Be-star companion. A recent survey of the SMC under a Chandra X-ray Visionary program found the source in a transition when the…

The XMM-Newton survey of the Small Magellanic Cloud (SMC) was performed to study the population of X-ray sources in this neighbouring galaxy. During one of the observations, the symbiotic binary SMC3 was found at its highest X-ray…

High Energy Astrophysical Phenomena · Physics 2015-05-20 R. Sturm , F. Haberl , J. Greiner , W. Pietsch , N. La Palombara , M. Ehle , M. Gilfanov , A. Udalski , S. Mereghetti , M. Filipović

This paper presents analysis and interpretation of OGLE photometric data of four X-ray binary pulsar systems in the Small Magellanic Cloud: 1WGA J0054.9-7226, RX J0050.7-7316, RX J0049.1-7250, and 1SAX J0103.2-7209. In each case, the…

Astrophysics · Physics 2009-10-31 M. J. Coe , J. A. Orosz

In this paper we present the identification of two periodic X-ray signals coming from the direction of the Small Magellanic Cloud (SMC). On detection with the Rossi X-ray Timing Explorer (RXTE), the 175.4s and 85.4s pulsations were…

High Energy Astrophysical Phenomena · Physics 2015-06-15 L. J. Townsend , S. P. Drave , A. B. Hill , M. J. Coe , R. H. D. Corbet , A. J. Bird