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相关论文: New Limits on Radio Emission from X-ray Dim Isolat…

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We present results from a deep search for radio emission from the X-ray pulsar systems GX 1+4, GS 0834-430 and 4U 0115+63 which have variously been suggested to possess radio jets and to be good candidates for propellor ejection mechanisms.…

天体物理学 · 物理学 2016-08-30 R. P. Fender , P. Roche , G. G. Pooley , D. Chakrabarty , A. K. Tzioumis , M. A. Hendry , R. E. Spencer

The survey of northern hemisphere were made at a frequency of 111 MHz. The total accumulation time at each point of the sky was at least one hour. 75 sources of pulse emission were detected. More then 80% of these sources are known pulsars…

高能天体物理现象 · 物理学 2022-04-12 S. A. Tyul'bashev , M. A. Kitaeva , S. V. Logvinenko , G. E. Tyul'basheva

The isolated neutron star RX J0806.4-4123 was observed with XMM-Newton in November 2000. The data from the three EPIC instruments allowed us (i) to derive an improved X-ray position to an accuracy of 2-3'', (ii) to accumulate the first…

天体物理学 · 物理学 2009-11-07 F. Haberl , V. E. Zavlin

The X-ray source eRASSU J065715.3+260428 was identified as a likely thermally emitting isolated neutron star in a search in the SRG/eROSITA All-Sky Survey. We investigated the nature and evolutionary state of the source through a dedicated…

高能天体物理现象 · 物理学 2025-01-14 J. Kurpas , A. M. Pires , A. D. Schwope , Z. C. Pan , Z. L. Zhang , L. Qian , F. Haberl , L. Ji , I. Traulsen

With a distance of 170 pc, PSR J2144-3933 is the closest isolated radio pulsar currently known. It is also the slowest and least energetic radio pulsar; indeed, its radio emission is difficult to account for with standard pulsar models,…

高能天体物理现象 · 物理学 2015-05-27 A. Tiengo , R. Mignani , A. De Luca , P. Esposito , S. Mereghetti , A. Pellizzoni

Two Galactic isolated strong X-ray pulsars seem to be in the densest environments compared to other types of Galactic pulsar. X-ray pulsar J1846-0258 can be in an early phase of anomalous X-ray pulsars and soft gamma repeaters if its…

天体物理学 · 物理学 2008-11-26 A. Ankay , E. Yazgan , S. Sahin , G. Karanfil

Isolated Neutron Stars are known to be endowed with extreme magnetic fields, whose maximum intensity ranges from 10^12 to 10^15 G, which permeates their magnetospheres. Their surrounding environment is also strongly magnetised, especially…

高能天体物理现象 · 物理学 2018-02-01 R. P. Mignani

The rotational properties and X-ray luminosity of PSR J0726-2612 are close to those of dim isolated neutron stars (XDINs). It was proposed that the source could be the first XDIN with observable pulsed radio emission. We have investigated…

高能天体物理现象 · 物理学 2020-09-09 Seyda Ozcan , Ali Arda Gencali , Unal Ertan

Fast Radio Bursts are bright, unresolved, non-repeating, broadband, millisecond flashes, found primarily at high Galactic latitudes, with dispersion measures much larger than expected for a Galactic source. The inferred all-sky burst rate…

We report the first detection of radio emission from any anomalous X-ray pulsar (AXP). Data from the Very Large Array (VLA) MAGPIS survey with angular resolution 6" reveals a point-source of flux density 4.5 +/- 0.5 mJy at 1.4 GHz at the…

天体物理学 · 物理学 2009-11-13 J. P. Halpern , E. V. Gotthelf , R. H. Becker , D. J. Helfand , R. L. White

We present the results of a search for transient radio bursts of between 0.125 and 32 millisecond duration in two archival pulsar surveys of intermediate galactic latitudes with the Parkes multibeam receiver. Fourteen new neutron stars have…

太阳与恒星天体物理 · 物理学 2015-05-14 S. Burke-Spolaor , M. Bailes

We have searched 92 unidentified sources from the FIRST and NVSS radio catalogs for pulsations at 610 MHz. The selected sources are bright, have no identifications, are unresolved and have significant linear polarization. Our search was…

天体物理学 · 物理学 2007-05-23 F. Crawford , V. M. Kaspi , J. F. Bell

We have used the 150 MHz radio continuum survey (TGSS ADR) from the Giant Metrewave Radio Telescope (GMRT) to search for phase-averaged emission toward all well-localized radio pulsars north of -53deg Declination. We detect emission toward…

高能天体物理现象 · 物理学 2016-10-05 D. A. Frail , P. Jagannathan , K. P. Mooley , H. T. Intema

X-ray pulsations with a 6.85 s period were recently detected in the SMC and were subsequently identified as originating from the Be/X-ray binary system XTE J0103-728. The recent localization of the source of the X-ray emission has made a…

太阳与恒星天体物理 · 物理学 2009-11-13 F. Crawford , D. R. Lorimer , B. M. Devour , B. P. Takacs , V. I. Kondratiev

The high-frequency radio sky is bursting with synchrotron transients from massive stellar explosions and accretion events, but the low-frequency radio sky has so far been quiet beyond the Galactic pulsar population and the long-term…

Transitional millisecond pulsars (tMSPs) switch between an accretion-powered state without radio pulsations and a rotation-powered state with radio pulsations. In the former state, they are X-ray bright, in the latter X-ray dim. Soft X-ray…

高能天体物理现象 · 物理学 2017-05-03 K. Mikhailov , J. van Leeuwen , P. G. Jonker

We report on radio observations of four magnetars SGR 0501+4516, Swift 1834.9-0846, 1E 1841-045, SGR 1900+14 and a magnetar-like pulsar PSR J1846-0258 with the Five-hundred-meter Aperture Spherical radio Telescope (FAST) at 1250 MHz.…

高能天体物理现象 · 物理学 2024-12-31 Juntao Bai , Na Wang , Shi Dai , Shuangqiang Wang , Jianping Yuan , Wenming Yan , Lunhua Shang , Xin Xu , Shijun Dang , Zhen Zhang

We present a model of thermal X-ray emission from hot spots on the surface of a rotating compact star with an unmagnetized light-element atmosphere. An application to ROSAT, Chandra, and XMM-Newton X-ray observations of the nearest known…

天体物理学 · 物理学 2009-11-11 Slavko Bogdanov , George B. Rybicki , Jonathan E. Grindlay

X-ray emission from the enigmatic Rotating RAdio Transients (RRATs) offers a vital clue to understanding these objects and how they relate to the greater neutron star population. An X-ray counterpart to J1819-1458 is known, and its…

太阳与恒星天体物理 · 物理学 2015-05-14 D. L. Kaplan , P. Esposito , S. Chatterjee , A. Possenti , M. A. McLaughlin , F. Camilo , D. Chakrabarty , P. O. Slane

We undertake the first targeted search at 1.5 GHz for radio emission from the variable $\gamma$-ray pulsar PSR J2021$+$4026. This radio-quiet pulsar assumes one of two stable $\gamma$-ray emission states, between which it transitions on a…

高能天体物理现象 · 物理学 2023-05-24 B. Shaw , B. W. Stappers , P. Weltevrede , C. A. Jordan , M. B. Mickaliger , A. G. Lyne