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相关论文: The $\gamma$-ray pulsar J0633+0632 in X-rays

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PSR J0837-2454 is a young 629 ms radio pulsar whose uncertain distance has important implications. A large distance would place the pulsar far out of the Galactic plane and suggest it is the result of a runaway star, while a short distance…

高能天体物理现象 · 物理学 2024-10-02 Wynn C. G. Ho , Nihan Pol , Adam T. Deller , Werner Becker , Sarah Burke-Spolaor

We report the discovery of 70.5 ms pulsations from the X-ray source AX J1838.0-0655 using the Rossi X-ray Timing Explorer (RXTE). PSR J1838-0655 is a rotation-powered pulsar with spin-down luminosity Edot = 5.5e36 ergs/s, characteristic age…

天体物理学 · 物理学 2009-11-13 E. V. Gotthelf , J. P. Halpern

We report on the results of Chandra X-ray observations of the $\gamma$-ray radio-quiet pulsar J1932+1916. We confirm the previous detection of the pulsar counterpart and its pulsar wind nebula in X-rays from low spatial resolution data…

高能天体物理现象 · 物理学 2020-03-02 O. D. Medvedev , A. V. Karpova , Yu. A. Shibanov , D. A. Zyuzin , G. G. Pavlov

Using archival Chandra data we studied the X-ray emission properties of PSR B2224+65 and its environment. Albeit limited by photon statistics the spectral analysis suggests that the bulk of the emission from PSR B2224+65 is non-thermal.…

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

We present the first X-ray observation of the energetic millisecond pulsar binary PSR J1431-4715, performed with XMM-Newton and complemented with fast optical multi-band photometry acquired with the ULTRACAM instrument at ESO-NTT. It is…

Using archival X-ray data we have found point-like X-ray counterpart candidates positionally coincident with six $\gamma$-ray pulsars discovered recently in the Fermi Gamma-ray Space Telescope data by the Einstein@Home project. The…

高能天体物理现象 · 物理学 2018-02-13 Dmitry A. Zyuzin , Anna V. Karpova , Yura A. Shibanov

We report on the first X-ray observation of the 0.28 s isolated radio pulsar PSR J1154--6250 obtained with the XMM-Newton observatory in February 2018. A point-like source is firmly detected at a position consistent with that of PSR…

We report the discovery of 31.18 ms pulsations from the INTEGRAL source IGR J14003-6326 using the Rossi X-ray Timing Explorer (RXTE). This pulsar is most likely associated with the bright Chandra X-ray point source lying at the center of…

高能天体物理现象 · 物理学 2014-11-20 M. Renaud , V. Marandon , E. V. Gotthelf , J. Rodriguez , R. Terrier , F. Mattana , F. Lebrun , J. A. Tomsick , R. N. Manchester

We constrain the X-ray properties of the nearby $(360\,{\rm pc})$, old ($5\,{\rm Myr}$) pulsar B1133+16 with $\sim 100\,{\rm ks}$ effective exposure time by {\it XMM-Newton}. The observed pulsar flux in the 0.2-3 keV energy range is $\sim…

高能天体物理现象 · 物理学 2017-02-08 Andrzej Szary , Janusz Gil , Bing Zhang , Frank Haberl , George I. Melikidze , Ulrich Geppert , Dipanjan Mitra , Ren-Xin Xu

We report on an X-ray observation of the 166 Myr old radio pulsar J0108-1431 with XMM-Newton. The X-ray spectrum can be described by a power-law model with a relatively steep photon index Gamma~3 or by a combination of thermal and…

高能天体物理现象 · 物理学 2015-06-11 B. Posselt , P. Arumugasamy , G. G. Pavlov , R. N. Manchester , R. M. Shannon , O. Kargaltsev

The pulsar wind nebula associated with PSR J1826-1334, HESS J1825-137, is a bright very high energy source with an angular extent of ~1 degree and spatially-resolved spectroscopic TeV measurements. The gamma-ray spectral index is observed…

高能天体物理现象 · 物理学 2012-07-31 Adam Van Etten , Roger W. Romani

We present the first analysis of the extended source CXOU J163802.6--471358, which was discovered serendipitously during the {\em Chandra} X-ray survey of the Norma region of the Galactic spiral arms. The X-ray source exhibits a cometary…

高能天体物理现象 · 物理学 2015-06-19 Simone J. Jakobsen , John A. Tomsick , Darach Watson , Eric V. Gotthelf , Victoria M. Kaspi

We report on the discovery by the Nuclear Spectroscopic Telescope Array (NuSTAR) and the Neutron Star Interior Composition Explorer (NICER) of the accreting millisecond X-ray pulsar IGR J17591-2342, detecting coherent X-ray pulsations…

Gamma ray bursts with blackbody spectra are only a few and in most cases this spectral component is accompanied by a dominating non-thermal one. Only four bursts detected by Batse have a pure blackbody spectrum throughout their duration. We…

高能天体物理现象 · 物理学 2015-06-15 G. Ghirlanda , A. Pescalli , G. Ghisellini

Using the Giant Metrewave Radio Telescope (GMRT) we performed deep observations to search for radio pulsations in the directions of unidentified Fermi Large Area Telescope (LAT) gamma-ray sources. We report the discovery of an eclipsing…

We report the first detection of pulsed X-ray emission from the young, energetic radio and Gamma-ray pulsar PSR B1706-44. We find a periodic signal at a frequency of f = 9.7588088 +/- 0.0000026 Hz (at epoch 51585.34104 MJD), consistent with…

天体物理学 · 物理学 2009-11-07 E. V. Gotthelf , J. P. Halpern , R. Dodson

We present results of an observation of the anomalous X-ray pulsar 4U 0142+61 with the EPIC cameras on XMM-Newton performed on 2003 January 24. The pulse phase averaged spectrum can be best described by the sum of a black body with a…

天体物理学 · 物理学 2009-11-10 E. Goehler , J. Wilms , R. Staubert

We describe Chandra, HST, and radio observations that reveal a radio-quiet but magnetospherically active neutron star in the error circle of the high-energy gamma-ray source 3EG J1835+5918, the brightest of the unidentified EGRET sources at…

天体物理学 · 物理学 2009-11-07 J. P. Halpern , E. V. Gotthelf , N. Mirabal , F. Camilo

We report on a 19 ks observation of the pulsar J1016-5857 with the Chandra X-ray Observatory. This "Vela-like" pulsar has rotation period 107 ms, characteristic age 21 kyr, and spin-down power 2.6e36 ergs/s. A relatively bright centrally…

天体物理学 · 物理学 2009-11-10 F. Camilo , B. M. Gaensler , E. V. Gotthelf , J. P. Halpern , R. N. Manchester

We present the first detailed imaging and spatially resolved spectroscopic study of the Galactic supernova remnant G292.2-0.5, associated with the high-magnetic field radio pulsar J1119-6127, using Chandra and XMM-Newton. The…

高能天体物理现象 · 物理学 2015-06-05 Harsha S. Kumar , Samar Safi-Harb , Marjorie Gonzalez