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Rossi X-Ray Timing Explorer observations of the Small Magellanic Cloud have revealed a previously unknown transient X-ray pulsar with a pulse period of 95s. Provisionally designated XTE SMC95, the pulsar was detected in three Proportional…

Astrophysics · Physics 2009-11-07 S. Laycock , R. H. D. Corbet , D. Perrodin , M. J. Coe , F. E. Marshall , C. Markwardt

(abridged) We analysed eight XMM-Newton observations toward the Small Magellanic Cloud (SMC), performed between October 2006 and June 2007, to investigate high mass X-ray binary systems. We found new X-ray binary pulsars with periods of 202…

Astrophysics · Physics 2009-11-13 F. Haberl , P. Eger , W. Pietsch

We investigate the X-ray and optical properties of a sample of X-ray bright sources from the Small Magellanic Cloud (SMC) Wing Survey. We have detected two new pulsars with pulse periods of 65.8 s (CXOU J010712.6-723533) and 700 s (CXOU…

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…

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 Small Magellanic Cloud is increasingly an invaluable laboratory for studying accreting and isolated X-ray pulsars. We add to the class of compact SMC objects by reporting the discovery of three new long period X-ray pulsars detected…

Astrophysics · Physics 2010-05-12 D. J. Macomb , D. W. Fox , R. C. Lamb , T. A. Prince

During a systematic search for periodic signals in a sample of ROSAT PSPC light curves, we discovered ~ 8.9s X-ray pulsations in 2E0050.1-7247, a variable X-ray source in the Small Magellanic Cloud. The source was detected several times…

Astrophysics · Physics 2009-10-30 G. L. Israel , L. Stella , L. Angelini , N. E. White , P. Giommi , S. Covino

XMM-Newton archival data for the Small Magellanic Cloud have been examined for the presence of previously undetected X-ray pulsars. One such pulsar, with a period of 202 s, is detected. Its position is consistent with an early B star in the…

Astrophysics · Physics 2009-11-10 W. A. Majid , R. C. Lamb , D. J. Macomb

During a routine calibration observation of 1E0102.2-7219 in the Small Magellanic Cloud (SMC) carried out in October 2012 for the Suzaku satellite, we detected a transient X-ray source at (RA, Dec) = (01h02m47s, -72d04m54s) in the equinox…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Qazuya Wada , Masahiro Tsujimoto , Ken Ebisawa , Eric D. Miller

We report on a new Be/X-ray pulsar binary located in the Wing of the Small Magellanic Cloud (SMC). The strong pulsed X-ray source was discovered with the Chandra and XMM-Newton X-ray observatories. The X-ray pulse period of 1062 s is…

Solar and Stellar Astrophysics · Physics 2015-06-03 V. Hénault-Brunet , L. M. Oskinova , M. A. Guerrero , W. Sun , Y. -H. Chu , C. J. Evans , J. S. Gallagher , R. A. Gruendl , J. Reyes-Iturbide

A bright X-ray transient was seen during an XMM-Newton observation in the direction of the Small Magellanic Cloud (SMC) in October 2006. The EPIC data allow us to accurately locate the source and to investigate its temporal and spectral…

Astrophysics · Physics 2009-11-13 F. Haberl , W. Pietsch

One of the goals of the XMM-Newton survey of the Small Magellanic Cloud is the study of the Be/X-ray binary population. During one of our first survey observations a bright new transient - XMMUJ004814.0-732204 - was discovered. We present…

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

In the course of the XMM-Newton survey of the Small Magellanic Cloud (SMC), a region to the east of the emission nebula N19 was observed in November 2009. To search for new candidates for high mass X-ray binaries the EPIC PN and MOS data of…

High Energy Astrophysical Phenomena · Physics 2015-05-27 M. J. Coe , F. Haberl , R. Sturm , W. Pietsch , L. J. Townsend , E. S. Bartlett , M. Filipovic , A. Udalski , R. H. D. Corbet , A. Tiengo , M. Ehle , J. L. Payne , D. Burton

We observed RX J0520.5-6932 in the X-rays and studied the optical light curve of its counterpart to verify it as a Be/X-ray binary. We performed an XMM-Newton anticipated target of opportunity observation in January 2013 during an X-ray…

High Energy Astrophysical Phenomena · Physics 2014-09-05 Georgios Vasilopoulos , Frank Haberl , Richard Sturm , Pierre Maggi , Andrzej Udalski

We present the results of a pair of 100 ksec Chandra observations in the Small Magellanic Cloud to survey high mass X-ray binaries (HMXBs), stars and LMXBs/CVs down to Lx = 4.3 x 10^32 erg/s The two SMC Deep Fields are located in the most…

Astrophysics · Physics 2014-08-05 Silas Laycock , Andreas Zezas , Jaesub Hong , Jeremy Drake , Valsamo Antoniou

Optical and X-ray observations are presented here of a newly reported X-ray transient system in the Small Magellanic Cloud. The data reveal many previously unknown X-ray detections of this system and clear evidence for a 49.995d binary…

Astrophysics · Physics 2019-08-14 M. J. Coe , M. Schurch , R. H. D. Corbet , J. Galache , V. A. McBride , L. J. Townsend , A. Udalski , )

We report on the results of the ASCA and ROSAT observations on RX J0059.2-7138, a transient X-ray pulsar in the Small Magellanic Cloud. The barycentric pulse period has been precisely determined to be 2.763221 +- 0.000004 s. The pulse shape…

Astrophysics · Physics 2015-06-24 Makoto Kohno , Jun Yokogawa , Katsuji Koyama

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…

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
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