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相关论文: Dual-frequency single-pulse study of PSR B0950+08

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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 present here the detection of giant-pulse emission from PSR B0950+08, a normal-period pulsar. The observations, made at 103 MHz and lasting for about ten months, have shown on a number of days the frequency of occurrence of giant pulses…

高能天体物理现象 · 物理学 2013-06-11 Ashok K. Singal , Hari Om Vats

Results of long time observations of the pulsar B0950+08 are given. These observations were carried out at the LPA radio telescope at the frequency of 111 MHz from January of 2016 to May of 2019 (450 days). A strong variability in emission…

高能天体物理现象 · 物理学 2022-03-14 V. M. Malofeev , I. F. Malov , O. I. Malov , D. A. Teplykh

Interstellar scintillations of pulsars PSR B0809+74 and B0950+08 have been studied using observations at low frequencies (41, 62, 89, and 112 MHz). Characteristic temporal and frequency scales of diffractive scintillations at these…

天体物理学 · 物理学 2011-08-31 T. V. Smirnova , V. I. Shishov

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

Pulsars are the "lighthouses" in the universe. Periodic pulses with the duty-cycle ~10% are detected when the radio beam of the rotating pulsar sweeps across the telescope. In this report, the 160 min-data of a nearby pulsar, PSR B0950+08,…

高能天体物理现象 · 物理学 2022-11-16 Zhengli Wang , Jiguang Lu , Jinchen Jiang , Jie Lin , Kejia Lee , Enwei Liang , Renxin Xu

We report on the detection of extreme giant pulses (GPs) from one of the oldest-known pulsars, the highly variable PSR B0950+08, with the Amsterdam-ASTRON Radio Transient Facility And Analysis Centre (AARTFAAC), a parallel transient…

The distribution of the intensities of individual pulses of PSR B0950+08 as a function of the longitudes at which they appear is analyzed. The flux density of the pulsar at 111 MHz varies strongly from day to day (by up to a factor of 13)…

天体物理学 · 物理学 2009-11-11 T. V. Smirnova

We present the results of a high-time resolution polarization study of single pulses from pulsars B0950+08 and B1642-03. Single pulses from pulsar B0950+08 sometimes show isolated micropulses without any significant associated subpulse…

高能天体物理现象 · 物理学 2023-10-31 Shubham Singh , Yashwant Gupta , Kishalay De

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

We performed simultaneous observations at 326.5 MHz with the Ooty Radio Telescope and at 326, 610 and 1308 MHz with the Giant Meterwave Radio Telescope for a sample of 12 pulsars, where frequency dependent single pulse behaviour was…

高能天体物理现象 · 物理学 2017-08-02 Arun Naidu , Bhal Chandra Joshi , P. K Manoharan , M. A Krishnakumar

Single pulse studies offer vital insights into the emission physics of pulsars, particularly in the case of young, nearby sources where intrinsic variability is often pronounced. PSR~B0656+14, known for its sporadic and sometimes intense…

高能天体物理现象 · 物理学 2025-08-20 S. C. Susarla , R. Ferguson , O. A. Johnson , L. Vincetti , D. J. McKenna , E. F. Keane , P. J. McCauley , A. Golden

We report the detection of giant pulse emission from PSR B0950+08 in 24 hours of observations made at 39.4 MHz, with a bandwidth of 16 MHz, using the first station of the Long Wavelength Array, LWA1. We detected 119 giant pulses from PSR…

The analysis of variations in the emission intensity of the pulsar B0950+08 from 2014 to 2022 with scales from minutes to years was carried out. The observations were obtained in a round-the-clock daily survey conducted on the Large Phased…

高能天体物理现象 · 物理学 2025-03-19 T. V. Smirnova , M. O. Toropov , S. A. Tyul'bashev

Individual radio pulses from a pulsar are directly linked to the underlying emission processes and the associated magnetic field geometry within its magnetosphere. Thus, single-pulse studies across frequencies can provide crucial insights…

高能天体物理现象 · 物理学 2026-01-27 Shyam S. Sharma , Tetsuya Hashimoto , Tomotsugu Goto , Sanjay Kudale , Sujin Eie , Simon C. -C. Ho

We present a detailed study of the single radio pulses of PSR B0656+14, a pulsar also known to be a strong pulsed source of high-energy emission. Despite the extensive studies at high-energy wavelengths, there is little or no published work…

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

Single-pulse studies are important to understand the pulsar emission mechanism and the noise floor in precision timing. We study total intensity and polarimetry properties of three bright millisecond pulsars - PSRs J1022+1001, J1713+0747,…

高能天体物理现象 · 物理学 2023-01-18 N. T. Palliyaguru , B. B. P. Perera , M. A. McLaughlin , S. Oslowski , G. L. Siebert

We have carried out a detailed study of single pulse emission from the pulsar B2000+40 (J2002+4050), observed at 1.6 GHz frequencies using the Effelsberg radio telescope. The pulsar has three components which are not well separated, with…

高能天体物理现象 · 物理学 2020-09-14 Rahul Basu , Wojciech Lewandowski , Jarosław Kijak

The low frequency (110--180 MHz) capabilities of the Westerbork Synthesis Radio Telescope (WSRT) are used to characterise a large collection of single pulses from three low magnetic field pulsars. Using the Pulsar Machine II (PuMa-II) to…

星系天体物理 · 物理学 2015-05-20 Ramesh Karuppusamy , Ben Stappers , Maciej Serylak

Pulsars are arguably the only astrophysical sources whose emission spans the entire electromagnetic spectrum, from decameter radio wavelengths to TeV energies. The LOw Frequency ARray (LOFAR) offers the unique possibility to study pulsars…

高能天体物理现象 · 物理学 2015-06-11 Vladislav Kondratiev , the LOFAR Pulsar Working Group
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