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Related papers: Monitoring and Discovering X-ray Pulsars in the Sm…

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On MJD 56590-1 (2013 Oct 25-26) observations of the Magellanic Clouds by the INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) observatory discovered a previously-unreported bright, flaring X-ray source. This source was initially…

High Energy Astrophysical Phenomena · Physics 2015-06-23 M. J. Coe , E. S. Bartlett , A. J. Bird , F. Haberl , J. A. Kennea , V. A. McBride , L. J. Townsend , A. Udalski

The magnetar SGR J1745-2900 discovered at parsecs distance from the Milky Way central black hole, Sagittarius A*, represents the closest pulsar to a supermassive black hole ever detected. Furthermore, its intriguing radio emission has been…

We present the discovery and timing results of 15 pulsars discovered in a high Galactic latitude survey conducted with the Five-hundred-meter Aperture Spherical Telescope (FAST). The survey targeted a region as close as possible to the…

High Energy Astrophysical Phenomena · Physics 2025-03-05 Xin Xu , Shi Dai , Qijun Zhi , Juntao Bai , Joanna Berteaud , Francesca Calore , Maïca Clavel , Weiwei Zhu , Di Li , Rushuang Zhao , Renxin Xu , Guojun Qiao

We model the present day, observable, normal radio pulsar population of the Small Magellanic Cloud (SMC). The pulsars are generated with SeBa, a binary population synthesis code that evolves binaries and the constituent stellar objects up…

Solar and Stellar Astrophysics · Physics 2020-03-18 N. Titus , S. Toonen , V. A. McBride , B. W. Stappers , D. A. H. Buckley , L. Levin

The X-ray binary population of the Small Magellanic Cloud (SMC) contains a large number of massive X-ray binaries and the recent survey of the SMC by XMM-Newton has resulted in almost 50 more tentative high mass X-ray binary candidates.…

On 2016 July 30 (MJD 57599), observations of the Small Magellanic Cloud by Swift/XRT found an increase in X-ray counts coming from a position consistent with the Be/X-ray binary pulsar SMC X-3. Follow-up observations on 2016 August 3 (MJD…

High Energy Astrophysical Phenomena · Physics 2017-08-30 L. J. Townsend , J. A. Kennea , M. J. Coe , V. A. McBride , D. A. H. Buckley , P. A. Evans , A. Udalski

We present the result of a systematic search for spectrally hard and soft X-ray binary systems in the Small Magellanic Cloud (SMC). This search has been applied to ROSAT PSPC data (0.1-2.4 keV) collected during 9 pointed observations…

Astrophysics · Physics 2007-05-23 P. Kahabka , W. Pietsch

We report the serendipitous detection of a previously unreported pulsar from the direction of the Small Magellanic Cloud using data from the CHANDRA X-Ray Observatory. Because of the luminosity of about 1.5x10^35 ergs/s, its near lack of…

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

(shortened) Fifteen Be/X-ray binaries and candidates in the SMC were observed serendipitously with the EPIC instruments of XMM-Newton during two observations of SNR 0047-73.5 and SNR 0103-72.6 in October 2000. A total of twelve of those…

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

Analysis of the longterm photometric variability of 7 Be/X-ray-pulsar systems in the Small Magellanic Cloud has been carried out. We find a variety of types of variability are present, including: longterm irregular changes, periodic orbital…

Astrophysics · Physics 2008-11-26 P. C. Schmidtke , A. P. Cowley

We report the most sensitive search yet for X-ray pulsars in the dwarf starburst galaxy IC 10, which is known to contain a population of young high mass X-ray binaries. We searched for pulsations in 207 point-like X-ray sources in the…

High Energy Astrophysical Phenomena · Physics 2021-11-09 Jun Yang , Silas G. T. Laycock , Daniel R. Wik

We report observed and derived timing parameters for three millisecond pulsars (MSPs) from observations collected with the Parkes 64-m telescope, Murriyang. The pulsars were found during re-processing of archival survey data by Mickaliger…

We report observations of SMC X-1 in three new high-intensity states with ROSAT HRI in December 1995, May 1997, and March 1998 in which pulsations with a period of 0.70769+/-0.00006 sec, 0.70706+/-0.00001 sec, and 0.706707+/-0.00001 sec…

Astrophysics · Physics 2007-05-23 P. Kahabka , X. -D. Li

The Swift Small Magellanic Cloud Survey, S-CUBED, is a high cadence shallow X-ray survey of the SMC. The survey consists of 142 tiled pointings covering the optical extent of the SMC, which is performed weekly by NASA's Neil Gehrels Swift…

High Energy Astrophysical Phenomena · Physics 2018-11-28 J. A. Kennea , M. J. Coe , P. A. Evans , J. Waters , R. E. Jasko

We report on the latest results of a Parkes multibeam survey for pulsars and dispersed radio bursts in the Large Magellanic Cloud (LMC). We conducted both periodicity and single-pulse searches at a much larger range of trial dispersion…

We report the discovery of 12 new radio pulsars in the Large Magellanic Cloud (LMC) as part of the TRAPUM (TRAnsients and PUlsars with MeerKAT) Large Survey Project, using the MeerKAT L-band receivers (856--1712\,MHz). These pulsars,…

A correlation of X-ray source and Halpha emission-line object catalogues in the Small Magellanic Cloud (SMC) shows that more than two thirds of the optically identified Be stars in Be/X-ray binaries are found as emission-line objects in the…

Astrophysics · Physics 2007-05-23 F. Haberl , M. Sasaki

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

We discovered 2.8 s pulsations in the X-ray emission of the ultraluminous X-ray source (ULX) M51 ULX-7 within the UNSEeN project, which was designed to hunt for new pulsating ULXs (PULXs) with XMM-Newton. The pulse shape is sinusoidal and…

I present an overview of our current observational knowledge of the six known accretion-driven millisecond X-ray pulsars. A prominent place in this review is given to SAX J1808.4-3658; it was the first such system discovered and currently…

Astrophysics · Physics 2007-05-23 Rudy Wijnands