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Using Chandra, XMM-Newton, and optical photometric catalogs we study the young X-ray binary (XRB) populations of the Small Magellanic Cloud. We find that the Be/X-ray binaries (Be-XRBs) are observed in regions with star formation rate…

High Energy Astrophysical Phenomena · Physics 2015-05-19 Vallia Antoniou , Andreas Zezas , Despina Hatzidimitriou , Vicky Kalogera

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

We present a detailed optical and X-ray study of the 2013 outburst of the Small Magellanic Cloud Be/X-ray binary SXP7.92, as well as an overview of the last 18 years of observations from OGLE, RXTE, Chandra and XMM-Newton. We revise the…

High Energy Astrophysical Phenomena · Physics 2017-01-18 E. S. Bartlett , M. J. Coe , G. L. Israel , J. S. Clark , P. Esposito , V. D'Elia , A. Udalski

Aims. We present an X-ray study of the supernova remnant SNR J0533-7202 in the Large Magellanic Cloud (LMC) and determine its physical characteristics based on its X-ray emission. Methods. We observed SNR J0533-7202 with XMM-Newton…

High Energy Astrophysical Phenomena · Physics 2015-07-01 P. J. Kavanagh , M. Sasaki , E. T. Whelan , P. Maggi , F. Haberl , L. M. Bozzetto , M. D. Filipovic , E. J. Crawford

Supernova Remnants (SNRs) are believed to be acceleration sites of Galactic cosmic rays. Therefore, deep studies of these objects are instrumental for an understanding of the high energy processes in our Galaxy. RX J0852.0-4622, also known…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Manuel Paz Arribas , Ullrich Schwanke , Iurii Sushch , Nukri Komin , Fabio Acero , Stefan Ohm

The origin of the strong magnetic fields measured in magnetars is one of the main uncertainties in the neutron star field. On the other hand, the recent discovery of a large number of such strongly magnetized neutron stars, is calling for…

High Energy Astrophysical Phenomena · Physics 2015-06-22 J. Martin , N. Rea , D. F. Torres , A. Papitto

It is generally accepted that Anomalous X-ray Pulsars (AXPs) and Soft Gamma-ray Repeaters (SGRs) are magnetars, i.e. neutron stars with extremely high surface magnetic fields ($B > 10^{14}$ G). The origin of these high magnetic fields is…

Astrophysics · Physics 2009-11-11 Jacco Vink , Lucien Kuiper

We present new radio observations of the recently identified, young Galactic supernova remnant (SNR) RX J0852.0-4622 (G266.2-01.2) made at 1.40 GHz with a resolution of 14.9 arcmin. These results, along with other radio observations from…

Astrophysics · Physics 2007-05-23 A. R. Duncan , D. A. Green

We characterize the Small Magellanic Cloud (SMC) pulsar SXP 46.6 using NuSTAR observations conducted in 2017. The spin period (P) of this neutron star decreased from its discovered value of 46.6 s to a value of 45.984(1) s, indicating a…

High Energy Astrophysical Phenomena · Physics 2025-10-03 Aman Kaushik , Sayantan Bhattacharya , Sudip Bhattacharyya

We discuss in this Letter the association of the candidate magnetar CXOU J171405.7-381031 with the supernova remnant CTB 37B. The recent detection of the period derivative of the object allowed an estimation of a young characteristic age of…

High Energy Astrophysical Phenomena · Physics 2015-05-27 J. E. Horvath , M. P. Allen

We report on the long-term average spin period, rate of change of spin period and X-ray luminosity during outbursts for 42 Be X-ray binary systems in the Small Magellanic Cloud. We also collect and calculate parameters of each system and…

Solar and Stellar Astrophysics · Physics 2015-06-17 H. Klus , W. C. G. Ho , M. J. Coe , R. H. D. Corbet , L. J. Townsend

This paper presents ASCA/SIS and ROSAT/HRI results of three supernova remnants (SNRs) in the Small Magellanic Cloud: 0103-726, 0045-734, and 0057-7226. The ROSAT/HRI images of these SNRs indicate that the most of the X-ray emissions are…

Astrophysics · Physics 2015-06-24 Jun Yokogawa , Kensuke Imanishi , Katsuji Koyama , Mamiko Nishiuchi , Norikazu Mizuno

There exists a special class of X-ray pulsars that exhibit very slow pulsation of $P_{\rm spin}>1000$ s in the high mass X-ray binaries (HMXBs). We have studied the temporal and spectral properties of these superslow pulsation neutron star…

High Energy Astrophysical Phenomena · Physics 2015-06-12 W. Wang

We conducted a spectral and temporal analysis of X-ray data from the Be X-ray binary pulsar SXP 15.6 located in the Small Magellanic Cloud based on NuSTAR, NICER and Swift observations during the 2021 outburst. We present for the first time…

High Energy Astrophysical Phenomena · Physics 2022-08-31 G. Vasilopoulos , G. K. Jaisawal , C. Maitra , F. Haberl , P. Maggi , A. S. Karaferias

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

The first wind nebula around a magnetar was recently discovered in X-rays around Swift~J1834.9$-$0846. We study this magnetar's global energetics and the properties of its particle wind or outflows. At a distance of $\sim4\;$kpc,…

High Energy Astrophysical Phenomena · Physics 2016-12-07 Jonathan Granot , Ramandeep Gill , George Younes , Josef Gelfand , Alice Harding , Chryssa Kouveliotou , Matthew G. Baring

We re-analysed numerous archival Chandra X-ray observations of the bright supernova remnant (SNR) 1E 0102.2-7219 in the Small Magellanic Cloud, to validate the detection of a neutron star (NS) in the SNR by Vogt et al. (2018). Careful…

High Energy Astrophysical Phenomena · Physics 2019-09-13 Pavan R. Hebbar , Craig O. Heinke , Wynn C. G. Ho

The distinction between the high-magnetic field pulsars (HBPs, thought to be mainly rotation-powered) and magnetars (commonly believed to be powered by their super-strong magnetic fields) has been recently blurred with the discovery of…

Astrophysics of Galaxies · Physics 2015-06-11 Samar Safi-Harb , Harsha S. Kumar

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…

We present new high-resolution radio and X-ray observations of the supernova remnant (SNR) B0453-685 in the Large Magellanic Cloud, carried out with the Australia Telescope Compact Array and the Chandra X-ray Observatory respectively.…

Astrophysics · Physics 2009-11-07 B. M. Gaensler , S. P. Hendrick , S. P. Reynolds , K. J. Borkowski