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Related papers: Long-term evolution of RRAT J1819-1458

200 papers

We present a 7 yr timing study of the 2.5 ms X-ray pulsar SAX J1808.4-3658, an X-ray transient with a recurrence time of ~2 yr, using data from the Rossi X-ray Timing Explorer covering 4 transient outbursts (1998-2005). We verify that the…

We have investigated the evolutionary connections of the isolated neutron star (NS) populations including radio pulsars (RPs), anomalous X-ray pulsars (AXPs), soft gamma repeaters (SGRs), dim isolated NSs (XDINs), ``high-magnetic-field''…

High Energy Astrophysical Phenomena · Physics 2024-09-19 Ali Arda Gencali , Unal Ertan

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…

High Energy Astrophysical Phenomena · Physics 2020-09-09 Seyda Ozcan , Ali Arda Gencali , Unal Ertan

We report the timing-analysis results obtained for RRAT J1819-1458 from regular timing observations at 1.54 GHz using the Urumqi 25 m radio telescope between 2007 April to 2008 March. RRAT J1819-1458 is a relatively young and highly…

Astrophysics · Physics 2009-11-13 A. Esamdin , C. S. Zhao , Y. Yan , N. Wang , H. Nizamidin , Z. Y. Liu

We have investigated the long-term evolution of individual anomalous X-ray pulsars (AXPs) and soft gamma repeaters (SGRs) with relatively well constrained X-ray luminosity and rotational properties. In the frame of the fallback disc model,…

High Energy Astrophysical Phenomena · Physics 2016-01-29 Onur Benli , Unal Ertan

We investigate the X-ray enhancement and the long-term evolution of the recently discovered, second "low-B magnetar" Swift J1822.3-1606 in the frame of the fallback disk model. During a soft gamma burst episode, the inner disk matter is…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Onur Benli , S. Caliskan , U. Ertan , M. A. Alpar , J. E. Truemper , N. D. Kylafis

Rotating radio transients (RRATs) are a sub-class of pulsars characterized by sporadic emission and thus can generally only be studied by analysis of their single-pulses. Here we present a single-pulse analysis using 11 years of timing data…

High Energy Astrophysical Phenomena · Physics 2018-10-26 Brent Shapiro-Albert , Maura McLaughlin , Evan Keane

In this study, we report on a detailed single pulse analysis of the radio emission from a rotating radio transient (RRAT) J1918$-$0449 which is the first RRAT discovered with the five hundred meter aperture spherical radio telescope (FAST).…

High Energy Astrophysical Phenomena · Physics 2022-07-27 J. L. Chen , Z. G. Wen , J. P. Yuan , N. Wang , D. Li , H. G. Wang , W. M. Yan , R. Yuen , P. Wang , Z. Wang , W. W. Zhu , J. R. Niu , C. C. Miao , M. Y. Xue , B. P. Gong

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…

High Energy Astrophysical Phenomena · Physics 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

We report on the search for optical bursts from J1819-1458, a member of the recently discovered Rotating Radio Transients (RRATs). J1819-1458 exhibits 3 millisecond bursts with a peak flux at 1.4 GHz of 3.6 Jy every ~3.4 minutes, implying…

Astrophysics · Physics 2009-11-11 V. S. Dhillon , T. R. Marsh , S. P. Littlefair

Rotating Radio Transients (RRATs) are a class of pulsar-like objects characterized by intermittent radio emissions. Among them, RRATs that exhibit both RRAT and normal pulsar (NP) states may represent a key evolutionary stage from nulling…

High Energy Astrophysical Phenomena · Physics 2026-03-26 Xin Xu , Qijun Zhi , Jie Tian , Jiguang Lu , Peng Jiang , Shijun Dang , Renxin Xu , Juntao Bai , Ke Yang

We show that: (i) the long-term X-ray outburst light curve of the transient AXP XTE J1810-197 can be accounted for by a fallback disk that is evolving towards quiescence through a disk instability after having been heated by a soft…

Astrophysics · Physics 2009-11-13 U. Ertan , M. H. Erkut

Rotating Radio Transients (RRATs) are neutron stars that emit sporadic radio bursts. We detected 1955 single pulses from RRAT J1913+1330 using the 19-beam receiver of the Five-hundred-meter Aperture Spherical Radio Telescope (FAST). These…

The outbursts of low mass X-ray binaries are prolonged relative to those of dwarf nova cataclysmic variables as a consequence of X-ray irradiation of the disc. We show that the time-scale of the decay light curve and its luminosity at a…

Astrophysics · Physics 2008-11-26 Craig R. Powell , Carole A. Haswell , Maurizio Falanga

Rotating radio transients (RRATs) are peculiar astronomical objects whose emission mechanism remains under investigation. In this paper, we present observations of three RRATs, J1538+2345, J1854+0306 and J1913+1330, observed with the…

High Energy Astrophysical Phenomena · Physics 2019-03-18 Jiguang Lu , Bo Peng , Kuo Liu , Peng Jiang , Youling Yue , Meng Yu , Ye-Zhao Yu , Feifei Kou , Lin Wang , FAST Collaboration

We present optical monitoring of the neutron star low-mass X-ray binary Swift J1858.6-0814 during its 2018-2020 outburst and subsequent quiescence. We find that there was strong optical variability present throughout the entire outburst…

High Energy Astrophysical Phenomena · Physics 2024-12-13 L. Rhodes , D. M. Russell , P. Saikia , K. Alabarta , J. van den Eijnden , A. H. Knight , M. C. Baglio , F. Lewis

The dim isolated neutron stars (XDINs) have periods in the same range as the anomalous X-ray pulsars (AXPs) and the soft gamma-ray repeaters (SGRs). We apply the fallback disk model, which explains the period clustering and other properties…

High Energy Astrophysical Phenomena · Physics 2015-06-22 U. Ertan , S. Caliskan , O. Benli , M. A. Alpar

Rotating Radio Transients (RRATs) are a new class of neutron stars discovered through the emission of radio bursts. Eleven sources are known up to now, but population studies predict these objects to be more numerous than the normal radio…

Astrophysics · Physics 2015-05-13 Nanda Rea

The search for rotating radio transients (RRAT) was done at a frequency of 111 MHz, in daily observations carried out on the radio telescope, a Large Phased Array (LPA) at declinations -9o < decj < +42o. 19 new RRATs were discovered for…

High Energy Astrophysical Phenomena · Physics 2024-07-02 S. A. Tyul'bashev , M. A. Kitaeva , D. V. Pervoukhin , G. E. Tyul'basheva , E. A. Brylyakova , A. V. Chernosov , I. L. Ovchinnikov

Magnetic field evolution of neutron stars is a long-standing debate. The rate of magnetic field decay for isolated, non-accreting neutron stars can be quantified by measuring the negative second derivative of the spin period. Alternatively,…

High Energy Astrophysical Phenomena · Physics 2024-09-06 Andrei P. Igoshev , Sergei B. Popov