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相关论文: High resolution spatial and timing observations of…

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Millisecond pulsar PSR J0218+4232 shows remarkable high-energy properties: very hard pulsed X-ray emission up to ~10 keV and a likely detection of high-energy gamma-rays (> 100 MeV) with a soft spectrum. The relative phasing of the X-ray…

天体物理学 · 物理学 2007-05-23 L. Kuiper , W. Hermsen

We report on high-resolution spatial and timing observations of the millisecond pulsar PSR J0218+4232 performed with the Chandra X-ray Observatory (CXO) and the Rossi X-ray Timing Explorer (RXTE). With these observations we were able to…

天体物理学 · 物理学 2009-11-10 L. Kuiper , W. Hermsen , B. Stappers

We report the detection of pulsed X-ray emission ($4.9\sigma$) from the binary millisecond pulsar PSR J0218+4232 in a 100 ks ROSAT HRI observation. The pulse profile shows a sharp main pulse and an indication for a second weaker pulse at…

天体物理学 · 物理学 2007-05-23 L. Kuiper , W. Hermsen , F. Verbunt , T. Belloni , A. Lyne

We perform absolute timing of PSR B1821-24 in M28, using a 50 ksec observation with Chandra/HRC-S. We have obtained the highest signal-to-noise X-ray pulsed lightcurve of this source to date, detecting two X-ray pulses, as well as…

We present an investigation of the morphology and arrival times of integrated radio pulses from the binary millisecond pulsar PSR J1022+1001. This pulsar is renowned for its poor timing properties, which have been postulated to originate…

天体物理学 · 物理学 2016-08-30 A. W. Hotan , M. Bailes , S. M. Ord

High-magnetic-field pulsars represent an important class of objects for studying the relationship between magnetars and radio pulsars. Here we report on four Chandra observations of the high-magnetic-field pulsar J1718-3718…

高能天体物理现象 · 物理学 2011-07-05 W. W. Zhu , V. M. Kaspi , M. A. McLaughlin , G. G. Pavlov , C. -Y. Ng , R. N. Manchester , B. M. Gaensler , P. M. Woods

We report on the discovery of four millisecond pulsars (MSPs) in the High Time Resolution Universe (HTRU) pulsar survey being conducted at the Parkes 64-m radio telescope. All four MSPs are in binary systems and are likely to have white…

We report circumstantial evidence for the first detection of pulsed high-energy gamma-ray emission from a millisecond pulsar, PSR J0218+4232, using data collected with the Energetic Gamma Ray Experiment (EGRET) on board the Compton Gamma…

天体物理学 · 物理学 2007-05-23 L. Kuiper , W. Hermsen , F. Verbunt , D. J. Thompson , I. H. Stairs , A. G. Lyne , M. S. Strickman , G. Cusumano

We have used the Green Bank Telescope to observe the millisecond pulsar PSR J0514-4002A on 43 occasions spread over 2 years. This 5-ms pulsar is located in the globular cluster NGC 1851; it belongs to a binary system and has a highly…

天体物理学 · 物理学 2011-02-11 Paulo C. Freire , Scott M. Ransom , Yashwant Gupta

We report on the likely detection of pulsed high-energy gamma-rays from the binary millisecond pulsar PSR J0218+4232 in 100-1000 MeV data from CGRO EGRET. Imaging analysis demonstrates that the highly significant gamma-ray source 2EG…

天体物理学 · 物理学 2007-05-23 L. Kuiper , W. Hermsen , F. Verbunt , A. Lyne , I. Stairs , D. J. Thompson , G. Cusumano

We present XMM-Newton MOS imaging and PN timing data of the millisecond pulsar PSR J0218+4232. We confirm the previously detected pulsations of PSR J0218+4232 and we show that the folded lightcurve is dependent on energy. We present the…

天体物理学 · 物理学 2009-11-10 N. A. Webb , J. -F. Olive , D. Barret

We report on X-ray and gamma-ray observations of the millisecond pulsar B1937+21 taken with the Chandra X-ray Observatory, XMM-Newton, and the Fermi Large Area Telescope. The pulsar X-ray emission shows a purely non-thermal spectrum with a…

高能天体物理现象 · 物理学 2015-06-19 C. -Y. Ng , J. Takata , G. C. K. Leung , K. S. Cheng , P. Philippopoulos

We present the discovery of six millisecond pulsars (MSPs) in the High Time Resolution Universe (HTRU) survey for pulsars and fast transients carried out with the Parkes radio telescope. All six are in binary systems with approximately…

We present the results of a BeppoSAX observation of PSR J0218+4232 which, for the first time, provides detailed information on the pulsar's temporal and spectral emission properties in the broad band 1-10 keV. We detected X-ray pulses with…

We present timing observations of four millisecond pulsars, using data obtained over three years at the ATNF Parkes and NRAL Jodrell Bank radio telescopes. Astrometric, spin, and binary parameters are updated, and substantially improved for…

天体物理学 · 物理学 2015-06-24 J. F. Bell , M. Bailes , R. N. Manchester , A. G. Lyne , F. Camilo , J. S. Sandhu

We have systematically studied the X-ray emission properties of globular cluster millisecond pulsars in order to evaluate their spectral properties and luminosities in a uniform way. Cross-correlating the radio timing positions of the…

高能天体物理现象 · 物理学 2010-06-03 W. Becker , H. H. Huang , T. Prinz

Until now X-radiation from nine millisecond pulsars has been detected. In the present paper we summarize the observations and show the results of a re-analysis of archival ROSAT data. In addition we present the results of recent…

天体物理学 · 物理学 2007-05-23 W. Becker , J. Trümper

We present observations of fields containing eight recently discovered binary millisecond pulsars using the telescopes at MDM Observatory. Optical counterparts to four of these systems are detected, one of which, PSR J2214+3000, is a novel…

高能天体物理现象 · 物理学 2015-06-18 Joshua Schroeder , Jules Halpern

We report the discovery of PSR J2022+3842, a 24 ms radio and X-ray pulsar in the supernova remnant G76.9+1.0, in observations with the Chandra X-ray telescope, the Robert C. Byrd Green Bank Radio Telescope, and the Rossi X-ray Timing…

高能天体物理现象 · 物理学 2015-05-28 Z. Arzoumanian , E. V. Gotthelf , S. M. Ransom , S. Safi-Harb , R. Kothes , T. L. Landecker

We report on X-ray observations of the solitary 4.8 ms pulsar PSR J0030+0451. The pulsar was one of the last targets observed in DEC-98 by the ROSAT PSPC. X-ray pulses are detected on a $4.5\sigma$ level and make the source the $11^{th}$…

天体物理学 · 物理学 2009-10-31 Werner Becker , Joachim Tr"umper , Andrea N. Lommen , Donald C. Backer
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