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Here we report the results of searching millisecond pulsar (MSP) candidates from the Fermi LAT second source catalog (2FGL). Seven unassociated $\gamma-$ray sources in this catalog are identified as promising MSP candidates based on their…

高能天体物理现象 · 物理学 2015-08-19 C. Y. Hui , S. M. Park , C. P. Hu , L. C. C. Lin , K. L. Li , A. K. H. Kong , P. H. T. Tam , J. Takata , K. S. Cheng , Ruolan Jin , T. -C. Yen , Chunglee Kim

Pulsations from the high mass X-ray binary AXJ1910.7+0917 were discovered during Chandra observations performed in 2011 (Israel et al. 2016). We report here more details on this discovery and discuss the source nature. The period of the…

高能天体物理现象 · 物理学 2017-06-21 L. Sidoli , G. L. Israel , P. Esposito , G. A. Rodriguez Castillo , K. Postnov

Using LOFAR, we have performed a very-low-frequency (115-155 MHz) radio survey for millisecond pulsars (MSPs). The survey targeted 52 unidentified Fermi $\gamma$-ray sources. Employing a combination of coherent and incoherent dedispersion,…

We report on diffuse X-ray emission associated with the nearby solitary millisecond pulsar PSR J2124-3358 detected with XMM-Newton and Chandra. The emission extends from the pulsar to the northwest by ~0.5 arcmin. The spectrum of the…

天体物理学 · 物理学 2009-11-11 C. Y. Hui , W. Becker

We present a Chandra Director's Discretionary Time observation of PSR J1119-6127 and its compact X-ray pulsar wind nebula (PWN) obtained on 27 October 2016, three months after the Fermi and Swift detection of millisecond bursts in hard…

高能天体物理现象 · 物理学 2017-12-13 Harsha Blumer , Samar Safi-Harb , Maura A. McLaughlin

We report on the results of a search for radio pulsars in five supernova remnants (SNRs) with FAST. The observations were made using the 19-beam receiver in the Snapshot mode. The integration time for each pointing is 10 min. We discovered…

高能天体物理现象 · 物理学 2024-02-28 Zhen Zhang , Wen-Ming Yan , Jian-Ping Yuan , Na Wang , Jun-Tao Bai , Zhi-Gang Wen , Bao-Da Li , Jin-Tao Xie , De Zhao , Yu-Bin Wang , Nan-Nan Zhai

PSR J0514-4002A is a 5-ms pulsar is located in the globular cluster NGC 1851; it belongs to a highly eccentric (e = 0.888) binary system. It is one of the earliest known examples of a numerous and fast-growing class of eccentric binary MSPs…

天体物理学 · 物理学 2008-11-26 Paulo C. C. Freire , Scott M. Ransom , Yashwant Gupta

We present the Robert C. Byrd Green Bank Telescope discovery of the highly eccentric binary millisecond pulsar PSR J1835$-$3259A in the Fermi Large Area Telescope-detected globular cluster NGC 6652. Timing over one orbit yields the pulse…

高能天体物理现象 · 物理学 2015-07-15 Megan E. DeCesar , Scott M. Ransom , David L. Kaplan , Paul S. Ray , Aaron M. Geller

We discuss PSR J1740+1000, one of five pulsars recently discovered in a search of 470 square degrees at 430 MHz during the upgrade of the 305-m Arecibo telescope. The period of 154 ms and period derivative of 2.1 x 10^-14 s/s imply a…

天体物理学 · 物理学 2009-11-06 M. A. McLaughlin , Z. Arzoumanian , J. M. Cordes , D. C. Backer , A. N. Lommen , D. R. Lorimer , A. F. Zepka

We present the first results from a joint XMM-Newton and NuSTAR observation of the gamma-ray emitting millisecond pulsar compact binary PSR J2129-0429. X-ray emission up to about 40 keV is detected and the joint spectrum can be modeled with…

高能天体物理现象 · 物理学 2018-07-11 A. K. H. Kong , J. Takata , C. Y. Hui , J. Zhao , K. L. Li , P. H. T. Tam

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

Context. Recently the discovery of PSR J1719-1438, a 5.8 ms pulsar with a companion in a 2.2 hr orbit, was reported. The combination of this orbital period and the very low mass function is unique. The discoverers, Bailes et al., proposed…

太阳与恒星天体物理 · 物理学 2012-10-02 L. M. van Haaften , G. Nelemans , R. Voss , P. G. Jonker

We present the analysis of the archival Suzaku and Swift X-ray observations of the young $\gamma$-ray pulsar J1932+1916 field. The data revealed a point-like object at the $\gamma$-ray position of the pulsar and diffuse X-ray emission…

高能天体物理现象 · 物理学 2017-01-17 A. Karpova , P. Shternin , D. Zyuzin , A. Danilenko , Yu. Shibanov

We report on nearly two years of timing observations of the low-mass binary millisecond pulsar, PSR J1909-3744 with the Caltech-Parkes-Swinburne Recorder II (CPSR2), a new instrument that gives unprecedented timing precision. Daily…

天体物理学 · 物理学 2009-11-13 B. A. Jacoby , A. Hotan , M. Bailes , S. Ord , S. R. Kulkarni

We report on the discovery of the companion star to the millisecond pulsar J1631+3627F in the globular cluster M13. By means of a combination of optical and near-UV high-resolution observations obtained with the Hubble Space Telescope, we…

The double neutron star PSR J1846-0513 is discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in Commensal Radio Astronomy FAST Survey. The pulsar is revealed to be harbored in an eccentric orbit with $e=0.208$…

高能天体物理现象 · 物理学 2024-11-04 Long Jiang , Kun Xu , Shuai Zha , Yun-Lang Guo , Jian-Ping Yuan , Xiang-Li Qian , Wen-Cong Chen , Na Wang

We report 21-yr timing of one of the most precise pulsars: PSR J1713+0747. Its pulse times of arrival are well modeled by a comprehensive pulsar binary model including its three-dimensional orbit and a noise model that incorporates…

The major programme for observing young, non-recycled pulsars with the Parkes telescope has transitioned from a narrow-band system to an ultra-wideband system capable of observing between 704 and 4032 MHz. We report here on the initial two…

高能天体物理现象 · 物理学 2021-02-10 Simon Johnston , C. Sobey , S. Dai , M. Keith , M. Kerr , R. N. Manchester , L. S. Oswald , A. Parthasarathy , R. M. Shannon , P. Weltevrede

Globular clusters contain a unique pulsar population, with many exotic systems that can form only in their dense stellar environments. The leap in sensitivity of the upgraded Giant Metrewave Radio Telescope (uGMRT) in India, especially at…

高能天体物理现象 · 物理学 2022-08-09 T. Gautam , A. Ridolfi , P. C. C. Freire , R. S. Wharton , Y. Gupta , S. M. Ransom , L. S. Oswald , M. Kramer , M. E. DeCesar

We have detected the rare phenomenon of stable, drifting sub-pulse behaviour in two pulsars discovered in the recent Swinburne intermediate latitude pulsar survey. The pulsars; PSR J1231-47 and PSR J1919+0134, have approximate periods (P)…

天体物理学 · 物理学 2009-11-07 S. M. Ord , R. Edwards , M. Bailes
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