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相关论文: A low frequency study of PSRs B1133+16, B1112+50, …

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We have used the unique low frequency sensitivity of the Large Phased Array radio telescope of Pushchino Radio Astronomy Observatory to collect dataset of the single pulse observations of second period pulsars of the Northern hemisphere.…

高能天体物理现象 · 物理学 2018-02-19 Kazantsev A. N. , Potapov V. A

In this paper we demonstrate that a large, unexplored reservoir of information about pulsar emission exists, that is directly linked to the radiating particles and their radiation process: We present a study of flux density measurements of…

天体物理学 · 物理学 2009-11-10 M. Kramer , A. Karastergiou , Y. Gupta , S. Johnston , N. D. R. Bhat , A. G. Lyne

We show the results of microsecond resolution radio data analysis focused on flux measurements of single pulses of PSR B1133+16. The data were recorded at 4.85 GHz and 8.35 GHz with 0.5 GHz and 1.1 GHz bandwidth, respectively, using Radio…

太阳与恒星天体物理 · 物理学 2015-06-19 K. Krzeszowski , O. Maron , A. Słowikowska , J. Dyks , A. Jessner

We revisit the phenomenon of pulse nulling using high-quality single-pulse data of PSR B1133+16 from simultaneous multifrequency observations. Observations were made at 325, 610, 1400 and 4850 MHz as part of a joint program between the…

天体物理学 · 物理学 2009-11-11 N. D. R. Bhat , Y. Gupta , M. Kramer , A. Karastergiou , A. G. Lyne , S. Johnston

With LOFAR beginning operation in 2008 there is huge potential for studying pulsars with high signal to noise at low frequencies. We present results of observations made with the Westerbork Synthesis Radio Telescope to revisit, with modern…

天体物理学 · 物理学 2009-11-13 B. W. Stappers , R. Karuppusamy , J. W. T. Hessels

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

Giant pulses are short, intense outbursts of radio emission with a power-law intensity distribution that have been observed from the Crab Pulsar and PSR B1937+21. We have undertaken a systematic study of giant pulses from PSR B1937+21 using…

天体物理学 · 物理学 2009-10-31 A. Kinkhabwala , S. E. Thorsett

We have analyzed 5.5 years of timing observations of 7 'slowly' rotating radio pulsars, made with the Westerbork Synthesis Radio Telescope. We present improved timing solutions and 30, mostly small, new glitches. Particularly interesting…

天体物理学 · 物理学 2009-11-11 G. H. Janssen , B. W. Stappers

PSR B0950+08 is a bright non-recycled pulsar whose single-pulse fluence variability is reportedly large. Based on observations at two widely separated frequencies, 55 MHz (NenuFAR) and 1.4 GHz (Westerbork Synthesis Radio Telescope), we…

A large sample of pulsars has been observed to study their subpulse modulation at an observing wavelength (when achievable) of both 21 and 92 cm using the Westerbork Synthesis Radio Telescope. In this paper we present the 92-cm data and a…

天体物理学 · 物理学 2009-11-13 P. Weltevrede , B. W. Stappers , R. T. Edwards

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

A large sample of about two hundred pulsars have been observed to study their subpulse modulation at an observing wavelength of (when achievable) both 21 and 92 cm using the Westerbork Synthesis Radio Telescope. For 57 pulsars drifting…

天体物理学 · 物理学 2009-11-13 Patrick Weltevrede , Ben Stappers , R. T. Edwards

We report the detection of pulse-to-pulse periodic intensity modulations, in observations of recycled pulsars. Even though the detection of individual pulses was generally not possible due to their low flux density and short duration,…

天体物理学 · 物理学 2009-11-07 R. T. Edwards , B. W. Stappers

We have analyzed single pulses from PSR J0737-3039B, the 2.8-s pulsar in the recently discovered double pulsar system, using data taken with the Green Bank Telescope at 820 and 1400 MHz. We report the detection of features similar to…

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

Refraction of pulsar radiation by electron density irregularities in the interstellar medium sometimes produces multiple imaging of pulsars which can lead to periodic oscillations of intensity in pulsar dynamic spectra records. Such events…

天体物理学 · 物理学 2007-05-23 Yashwant Gupta , N. D. Ramesh Bhat , A. Pramesh Rao

In this work, we observe the nearby pulsar, PSR B1929$+$10, using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). We find, for the first time, two new emission components with an extremely weak observed flux density of…

高能天体物理现象 · 物理学 2025-07-02 Zhengli Wang , Jiguang Lu , Weiyang Wang , Shunshun Cao , Jinchen Jiang , Jiangwei Xu , Kejia Lee , Enwei Liang , Hongguang Wang , Renxin Xu

We present results of the investigation of the giant radio pulses (GRPs) generation rate from 5 radio pulsars (B0301+19, B0950+08, B1112+50, B1133+16, and B1237+25) and anomalous intensity pulses generation rate from B0809+74. All data used…

高能天体物理现象 · 物理学 2022-03-16 A. N. Kazantsev , M. Yu. Basalaeva

At 327 MHz, the observed emission of PSR B1937+21 is greatly affected by scattering in the interstellar medium, on a timescale of order the pulse period. We use the bright impulsive giant pulses emitted by the pulsar to measure the impulse…

高能天体物理现象 · 物理学 2024-04-09 Nikhil Mahajan , Marten H. van Kerkwijk
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