中文
相关论文

相关论文: A Long Look at the Be/X-Ray Binaries of the Small …

200 篇论文

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…

高能天体物理现象 · 物理学 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

We present a large sample of eclipsing binary stars detected in the Small Magellanic Cloud fields covering about 14 square degrees that have been monitored for eight years during the third phase of the OGLE survey. This is the largest set…

We have studied the very long-term temporal properties of the optical emission from Be X-ray binaries (BeX) in the Small Magellanic Cloud over a ~ 16 yr baseline, using light curves from the MACHO and OGLE databases. All the BeX in our…

太阳与恒星天体物理 · 物理学 2015-05-20 A. F. Rajoelimanana , P. A. Charles , A. Udalski

On 30th August 2006 SXP18.3 a high mass X-ray binary (HMXB) in the Small Magellanic Cloud (SMC) with an 18.3s pulse period was observed by Rossi X-ray Timing Explorer (RXTE). The source was seen continuously for the following 36 weeks. This…

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…

天体物理学 · 物理学 2009-11-13 V. A. McBride , M. J. Coe , I. Negueruela , M. P. E. Schurch , K. E. McGowan

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…

天体物理学 · 物理学 2009-11-06 M. Sasaki , F. Haberl , S. Keller , W. Pietsch

We have analysed publicly available MACHO observations of 6833 variable stars in the Large Magellanic Cloud, classified as eclipsing binaries. After finding that a significant fraction of the sample was misclassified, we redetermined…

天体物理学 · 物理学 2009-11-11 A. Derekas , L. L. Kiss , T. R. Bedding

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 a source catalog from the first deep hard X-ray ($E>10$ keV) survey of the Small Magellanic Cloud (SMC), the NuSTAR Legacy Survey of the SMC. We observed three fields, for a total exposure time of 1 Ms, along the bar of this…

Based on XMM-Newton EPIC data of four pointings towards the Small Magellanic Cloud (SMC), results on timing and spectral analyses of 16 known high mass X-ray binaries (HMXBs) and HMXB candidates in the SMC are presented. We confirm the…

天体物理学 · 物理学 2009-11-07 Manami Sasaki , Wolfgang Pietsch , Frank Haberl

We have conducted a programme to determine the fundamental parameters of a substantial number of eclipsing binaries of spectral types O and B in the Small Magellanic Cloud. New spectroscopic data, obtained with the two-degree-field…

天体物理学 · 物理学 2011-09-29 R. W. Hilditch , I. D. Howarth , T. J. Harries

Using data from eROSITA, the soft X-ray instrument aboard Spectrum-Roentgen-Gamma (SRG), we report the discovery of two new hard transients, eRASSU J050810.4-660653 and eRASSt J044811.1-691318, in the Large Magellanic Cloud. We also report…

In the Galaxy and in the Magellanic Clouds there are 170 Be X-ray binaries known to-date. Out of those, 111 host a neutron star, and for the reminder the nature of a companion is not known. None, so far, is known to host a black hole. This…

太阳与恒星天体物理 · 物理学 2015-06-03 Janusz Ziolkowski , Krzysztof Belczynski

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…

高能天体物理现象 · 物理学 2017-12-20 N. van Jaarsveld , D. A. H. Buckley , V. A. McBride , F. Haberl , G. Vasilopoulos , C. Maitra , A. Udalski , B. Miszalski

We present simultaneous, multi-wavelength observations of the Small Magellanic Cloud Be/XRB IGR J01217-7257 (=SXP 2.16) during outbursts in 2014, 2015 and 2016. We also present the results of RXTE observations of the Small Magellanic Cloud…

高能天体物理现象 · 物理学 2017-01-18 C. M. Boon , A. J. Bird , M. J. Coe , R. H. D. Corbet , P. A. Evans , J. A. Kennea , H. A. Krimm , S. G. T. Laycock , A. Udalski

We report the timing analysis results of X-ray pulsars from a recent deep Chandra survey of the Small Magellanic Cloud (SMC). We have analyzed a total exposure of 1.4 Ms from 31 observations over a 1.2 deg$^2$ region in the SMC under a…

高能天体物理现象 · 物理学 2017-10-04 JaeSub Hong , Vallia Antoniou , Andreas Zezas , Frank Haberl , Manami Sasaki , Jeremy Drake , Paul Plucinsky , Silas Laycock

(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…

天体物理学 · 物理学 2009-11-10 F. Haberl , W. Pietsch

Context. About 120 Be/X-ray binaries (BeXBs) are known in the Small Magellanic Cloud (SMC); about half of them are pulsating with periods from a few to hundreds of seconds. SXP 1323 is one of the longest-period pulsars known in this galaxy.…

高能天体物理现象 · 物理学 2017-06-21 Stefania Carpano , Frank Haberl , Richard Sturm

The first 100 brightest eclipsing systems from the Small Magellanic Cloud were studied for their period changes. The photometric data from the surveys OGLE-II, OGLE-III, OGLE-IV and MACHO were combined with our new CCD observations obtained…

太阳与恒星天体物理 · 物理学 2019-02-27 P. Zasche , M. Wolf , J. Vrastil

As a result of a careful selection of eclipsing binaries in the Large Magellanic Cloud using the OGLE-II photometric database, we present a list of 98 systems that are suitable targets for spectroscopic observations that would lead to the…

天体物理学 · 物理学 2009-11-10 G. Michalska , A. Pigulski