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相关论文: Giant pulse emission from PSR B0950+08

200 篇论文

Pulse-to-pulse intensity variations are a common property of pulsar radio emission. For some of the objects single pulses are often 10-times stronger than their average pulse. The most dramatic events are so-called giant radio pulses…

天体物理学 · 物理学 2007-05-23 A. Slowikowska , A. Jessner , G. Kanbach , B. Klein

We have studied the statistics of giant pulses from the Crab pulsar for the first time with particular reference to their widths. We have analyzed data collected during 3.5 hours of observations conducted with the Westerbork Synthesis Radio…

天体物理学 · 物理学 2009-11-13 M. V. Popov , B. Stappers

PSR J0540$-$6919 is the second-most energetic radio pulsar known and resides in the Large Magellanic Cloud. Like the Crab pulsar it is observed to emit giant radio pulses (GPs). We used the newly-commissioned PTUSE instrument on the MeerKAT…

Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we have recorded 10^5 single pulses from PSR J1022+1001. We studied the polarization properties, their energy distribution and their times of arrival. This is only…

Seven giant radio pulses were recorded from the millisecond pulsar PSR B1937+21 during $\approx$ 8.1 minutes observation by the Ooty Radio Telescope (ORT) at 326.5 MHz. Although sparse, these observations support most of the giant pulse…

天体物理学 · 物理学 2009-11-07 M. Vivekanand

[...] We observed XTE J1810-197 between 29 September 2022 and 14 July 2023 with the radio telescopes at the Argentine Institute of Radioastronomy (IAR). We searched for single pulses in time series at a DM range of 100-400 pc cm-3 , with a…

高能天体物理现象 · 物理学 2026-03-03 S. B. Araujo Furlan , G. E. Romero , E. Zubieta , G. Gancio , F. García , S. del Palacio , C. O. Lousto

PSR B0919+06 is known for its abnormal emission phenomenon, where the pulse emission window occasionally shifts progressively in longitude and returns afterwards. The physical mechanism behind this phenomenon is still under investigation.…

高能天体物理现象 · 物理学 2019-03-18 Ye-Zhao Yu , Bo Peng , Kuo Liu , Chengmin Zhang , Lin Wang , Fei Fei Kou , Jiguang Lu , Meng Yu , FAST Collaboration

Since their discovery more than 50 years ago, broadband radio studies of pulsars have generated a wealth of information about the underlying physics of radio emission. In order to gain some further insights into this elusive emission…

高能天体物理现象 · 物理学 2021-07-21 K. M. Rajwade , B. B. P. Perera , B. W. Stappers , J. Roy , A. Karastergiou , J. M. Rankin

The Crab pulsar is well-known for its anomalous giant radio pulse emission. Past studies have concentrated only on the very bright pulses or were insensitive to the faint end of the giant pulse luminosity distribution. With our new…

星系天体物理 · 物理学 2015-05-18 R. Karuppusamy , B. W. Stappers , W. van Straten

The second fastest millisecond pulsar, B1937+21, is one of several pulsars known to emit giant pulses (GPs). GPs are characterized by their huge energy, power-law cumulative energy distribution, and particular longitudes of occurrence. All…

天体物理学 · 物理学 2007-05-23 V. I. Kondratiev , M. V. Popov , V. A. Soglasnov , Y. Y. Kovalev , N. Bartel , F. Ghigo

Over the past decade it has become apparent that a class of `bursting pulsars' exist with the discovery of PSR J1752+2359 and PSR J1938+2213. In these pulsars, a sharp increase in the emission is observed that then tends to systematically…

太阳与恒星天体物理 · 物理学 2014-02-10 Andrew Seymour , Duncan Lorimer , Josh Ridley

Using two observations obtained with the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we present a detailed single-pulse analysis of the high-nulling pulsar PSR J1820-0509. We measure an exceptionally high nulling fraction…

Several pulsars show sudden cessation of pulsed emission, which is known as pulsar nulling. In this paper, the nulling behaviour of 15 pulsars is presented. The nulling fractions of these pulsars, along with the degree of reduction in the…

太阳与恒星天体物理 · 物理学 2015-06-05 Vishal Gajjar , B. C. Joshi , M. Kramer

We have completed part of a program to study the X-ray emission properties of old rotation-powered pulsars with XMM-Newton in order to probe and identify the origin of their X-radiation. The X-ray emission from these old pulsars is largely…

We present a detailed study of the single radio pulses of PSR B0656+14. The emission can be characterized by two separate populations of pulses: bright pulses have a narrow ``spiky'' appearance in contrast to the underlying weaker broad…

天体物理学 · 物理学 2007-05-23 P. Weltevrede , B. W. Stappers , J. M. Rankin , G. A. E. Wright

Pulse nulling is one of many single pulse phenomena exhibited by radio pulsars. The broadband nature of this phenomena remained unexplained due to lack of coordinated observations. We are reporting broadband nulling behaviour of a well…

太阳与恒星天体物理 · 物理学 2012-09-05 Vishal Gajjar , B. C. Joshi , M. Kramer

The recently discovered RRAT sources are characterized by very bright radio bursts which, while being periodically related, occur infrequently. We find bursts with the same characteristics for the known pulsar B0656+14. These bursts…

天体物理学 · 物理学 2009-11-11 P. Weltevrede , B. W. Stappers , J. M. Rankin , G. A. E. Wright

We present statistical analysis of a fluence limited sample of over 1100 giant pulses from the Crab pulsar, with fluence > 130 Jy ms at ~1330 MHz. These were detected in ~260 hours of observation with the National Centre for Radio…

高能天体物理现象 · 物理学 2019-10-01 Apurba Bera , Jayaram N. Chengalur

We present a large survey of giant pulses from the Crab Pulsar as observed with the first station of the Long Wavelength Array. Automated methods for detecting giant pulses at low frequencies where scattering becomes prevalent are also…

太阳与恒星天体物理 · 物理学 2016-10-05 T. Eftekhari , K. Stovall , J. Dowell , F. K. Schinzel , G. B. Taylor

More than 100 rotating radio transients (RRATs) have been discovered since 2006. However, it is unclear whether RRATs radiate in the nulling states. PSR J0628+0909 has been classified as an RRAT. In this paper, we study the single pulses…

高能天体物理现象 · 物理学 2022-12-12 J. A. Hsu , J. C. Jiang , H. Xu , K. J. Lee , R. X. Xu