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Related papers: Three new high-mass X-ray binaries in the Large Ma…

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We present an analysis of the long-term optical/IR behavior of 111 high-mass X-ray binaries (HMXBs) in the Small Magellanic Cloud based on data from the OGLE collaboration. Most systems exhibit variability on a range of time scales. This…

High Energy Astrophysical Phenomena · Physics 2025-01-24 Helena Treiber , Georgios Vasilopoulos , Charles Bailyn , Frank Haberl , Andrzej Udalski

Two observation campaigns performed in 2003 and 2004 with the INTEGRAL satellite have provided the first sensitive survey of the Large Magellanic Cloud with an imaging instrument in the hard X-ray range (15 keV - 10 MeV). The high energy…

Astrophysics · Physics 2009-11-11 D. Gotz , S. Mereghetti , D. Merlini , L. Sidoli , T. Belloni

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 a peculiar X-ray binary pulsar IKT1 = RXJ0047.3-7312 observed with XMM-Newton in Oct. 2000. The X-ray spectrum is described by a two-component spectrum. The hard component has a broken power-law with respective photon indices…

Astrophysics · Physics 2015-06-24 Masaru Ueno , Hiroya Yamaguchi , Shin-ichiro Takagi , Jun Yokogawa , Katsuji Koyama

Context. The Small Magellanic Cloud (SMC) hosts many known high-mass X-ray binaries (HMXBs), and all but one (SMC X-1) have a Be companion star. Through the calibration and verification phase of eROSITA on board the Spektrum-Roentgen-Gamma…

High Energy Astrophysical Phenomena · Physics 2022-05-18 S. Carpano , F. Haberl , C. Maitra , M. Freyberg , K. Dennerl , A. Schwope , A. H. Buckley , I. M. Monageng

We present an optical and X-ray study of four Be/X-ray binaries located in the Small Magellanic Cloud (SMC). OGLE I-band data of up to 11 years of semi-continuous monitoring has been analysed for SMC X-2, SXP172 and SXP202B, providing both…

Solar and Stellar Astrophysics · Physics 2015-05-20 M. P. E. Schurch , M. J. Coe , V. A. McBride , L. J. Townsend , A. Udalski , F. Haberl , R. H. D. Corbet

We present a catalogue of 1768 eclipsing binary stars (EBs) detected in the Large Magellanic Cloud (LMC) by the second generation of the EROS survey (hereinafter EROS-2); 493 of them are new discoveries located in outer regions (out of the…

We observed the newly discovered X-ray source Swift J053041.9-665426 in the X-ray and optical regime to confirm its proposed nature as a high mass X-ray binary. We obtained XMM-Newton and Swift X-ray data, along with optical observations…

High Energy Astrophysical Phenomena · Physics 2015-06-17 G. Vasilopoulos , P. Maggi , F. Haberl , R. Sturm , W. Pietsch , E. S. Bartlett , M. J. Coe

It has long been known that a large population of Be/X-ray Binaries (BeXRBs) exists in the Milky Way's neighboring dwarf galaxy, the Small Magellanic Cloud (SMC), due to a recent period of intense star formation. Since 2016, efforts have…

High Energy Astrophysical Phenomena · Physics 2025-06-02 Thomas M. Gaudin , Jamie A. Kennea , Malcolm J. Coe , Phil A. Evans

Spectroscopic observations taken with the VLT/UVES telescope/instrument are presented of the unusual Small Magellanic Cloud (SMC) X-ray binary system SXP 323 = AX J0051-733. This system shows a clear modulation at 0.71d in long term optical…

Astrophysics · Physics 2009-11-13 M. J. Coe , I. Negueruela , V. A. McBride

We investigate the optical counterparts of recently discovered Be/X-ray binaries in the Small Magellanic Cloud. In total four sources, SXP101, SXP700, SXP348 and SXP65.8 were detected during the Chandra Survey of the Wing of the SMC. SXP700…

The Advanced Satellite for Cosmology and Astrophysics (ASCA) has made multiple observations of the Small Magellanic Cloud (SMC). X-ray mosaic images in the soft (0.7--2.0 keV) and hard (2.0--7.0 keV) bands are separately constructed, and…

The high sensitivity of the XMM-Newton instrumentation offers the opportunity to study faint and extended sources in the Milky Way and nearby galaxies such as the Large Magellanic Cloud (LMC) in detail. The ROSAT PSPC survey of the LMC has…

High Energy Astrophysical Phenomena · Physics 2015-06-03 M. -H. Grondin , M. Sasaki , F. Haberl , W. Pietsch , E. J. Crawford , M. D. Filipovic , L. M. Bozzetto , S. Points , R. C. Smith

The Large Magellanic Cloud (LMC) hosts a rich population of supernova remnants (SNRs), our knowledge of which is the most complete of any galaxy. However, there remain many candidate SNRs, identified through optical and radio observations…

High Energy Astrophysical Phenomena · Physics 2022-03-30 P. J. Kavanagh , M. Sasaki , M. D. Filipovic , S. D. Points , L. M. Bozzetto , F. Haberl , P. Maggi , C. Maitra

We present long-term optical and RXTE data of two X-ray binary pulsars in the Small Magellanic Cloud, SXP46.6 and SXP6.85. The optical light curves of both sources show substantial (~0.5-0.8 mag) changes over the time span of the…

Astrophysics · Physics 2009-11-13 K. E. McGowan , M. J. Coe , M. P. E. Schurch , R. H. D. Corbet , J. L. Galache , A. Udalski

We report our initial discovery of 73 new planetary nebulae (PNe) in the Large Magellanic Cloud (LMC) following confirmatory 2dF spectroscopy on the Anglo-Australian Telescope (AAT). Preliminary candidate sources come from a 10 per cent…

Astrophysics · Physics 2009-11-13 Warren A. Reid , Quentin A. Parker

Three new X-ray pulsars have been detected in the Small Magellanic Cloud (SMC) and the positions of two others have been determined, with archive Chandra data. A series of five observations of the SMC took place between May and October…

We report pulsations in the X-ray flux of RX J0101.3-7211 in the Small Magellanic Cloud (SMC) with a period of 455+/-2 s in XMM-Newton EPIC-PN data. The X-ray spectrum can be described by a power-law with a photon index of 0.6+/-0.1. Timing…

Astrophysics · Physics 2009-11-06 M. Sasaki , F. Haberl , S. Keller , W. Pietsch

XMM-Newton archival observations of the Be/X-ray binary candidate RX J0103.6-7201 revealed pulsations with a period of ~1323 s. This makes RX J0103.6-7201 the X-ray pulsar with the longest period known in the Small Magellanic Cloud (SMC).…

Astrophysics · Physics 2009-11-10 F. Haberl , W. Pietsch