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相关论文: PSR B0826-34: Sometimes a rotating radio transient

200 篇论文

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

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

We report analysis of an 8 hr observation of PSR B0943+10 at 325 MHz performed at the Giant Metrewave Radio Telescope (GMRT) in India. B0943+10 is well known for displaying regular sub-pulse drifting and two emission modes. We investigate…

星系天体物理 · 物理学 2015-05-30 Isaac Backus , Dipanjan Mitra , Joanna Rankin

We demonstrate that the high-magnetic field pulsar J1119-6127 exhibits three different types of behaviour in the radio band. Trailing the "normal" profile peak there is an "intermittent" peak and these components are flanked by two…

太阳与恒星天体物理 · 物理学 2015-05-20 Patrick Weltevrede , Simon Johnston , Cristobal M. Espinoza

Pulsars emit low-frequency radio waves through to high-energy gamma-rays that are generated anywhere from the surface out to the edges of the magnetosphere. Detecting correlated mode changes in the multi-wavelength emission is therefore key…

Giant pulses are rare bright radio bursts that occur in restricted ranges of pulsar rotational phase. Here we report giant pulses from PSR B0355+54, a pulsar with spin period ~0.156 s. Using 7.97 hours of observations centred at 1.46 GHz,…

高能天体物理现象 · 物理学 2026-05-21 Sergei L. Kurdubov , Dmitry A. Marshalov

We have detected the rare phenomenon of stable, drifting sub-pulse behaviour in two pulsars discovered in the recent Swinburne intermediate latitude pulsar survey. The pulsars; PSR J1231-47 and PSR J1919+0134, have approximate periods (P)…

天体物理学 · 物理学 2009-11-07 S. M. Ord , R. Edwards , M. Bailes

Two new rotating transients were detected in the 2020 observations carried out on the LPA LPI radio telescope. The dispersion measures of the found transients are DM=21 and 35 pc/cm^3, the pulse half-widths are We=18 and 35 ms for J1550+09…

高能天体物理现象 · 物理学 2022-06-27 S. V. Logvinenko , S. A. Tyul'bashev , V. M. Malofeev

We report a detailed study of subpulse drifting in four long period pulsars. These pulsars were observed in the Meterwavelength Single-pulse Polarimetric Emission Survey and the presence of phase modulated subpulse drifting was reported in…

高能天体物理现象 · 物理学 2018-03-14 Rahul Basu , Dipanjan Mitra

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 nature of irregularly spaced pulses of rotating radio transients (RRATs) complicates interstellar scintillation studies. In this letter, we report the primary scintillation parameters of a sample of RRATs using pairwise correlations of…

With the largest dish Five-hundred-meter Aperture Spherical radio Telescope (FAST), both the mean and single pulses of PSR B2016$+$28, especially including the single-pulse structure, are investigated in detail in this study. The mean pulse…

高能天体物理现象 · 物理学 2019-03-18 Jiguang Lu , Bo Peng , Renxin Xu , Meng Yu , Shi Dai , Weiwei Zhu , Ye-Zhao Yu , Peng Jiang , Youling Yue , Lin Wang , FAST Collaboration

As one of the paradigm examples to probe into pulsar magnetospheric dynamics, PSR B0943+10 (J0946+0951) manifests representatively, showing mode switch, orthogonal polarization and subpulse drifting, frequently studied below 600 MHz. Here…

The longitude separation between adjacent drifting subpulses, $P_2$, is roughly constant for many pulsars. It was then perplexing when pulsar B0809+74 was found to exhibit substantial variations in this measure, both with wavelength and…

天体物理学 · 物理学 2009-11-10 Joanna M. Rankin , R. Ramachandran , Svetlana A. Suleymanova

We present the first polarization measurements of the radio emission from RRAT J1819$-$1458. Our observations, conducted in parallel to regular timing sessions, have yielded a small number of bright and polarized pulses. The polarization…

太阳与恒星天体物理 · 物理学 2009-05-11 A. Karastergiou , A. W Hotan , W. van Straten , M. A McLaughlin , S. M Ord

PSR J0922+0638 (B0919+06) shows unexplained anomalous variations in the on-pulse phase, where the pulse appears to episodically move to an earlier longitude for a few tens of rotations before reverting to the usual phase for approximately…

Single pulse observations, characterizing in detail, the nulling behaviour of PSR B1706$-$16 are being reported for the first time in this paper. Our regular long duration monitoring of this pulsar reveals long nulls of 2 to 5 hours with an…

高能天体物理现象 · 物理学 2018-02-14 Arun Naidu , Bhal Chandra Joshi , P. K Manoharan , M. A Krishnakumar

We investigate circular polarization in pulsar radio emission through simultaneous observations of PSR B1133+16 at two frequencies. In particular, we investigate the association of the handedness of circular polarization with the orthogonal…

天体物理学 · 物理学 2009-11-07 A. Karastergiou , S. Johnston , M. Kramer

We report on the unique nulling properties of PSR B0818-41, using the GMRT at 325 and 610 MHz. We find following interesting behaviour just before and after the nulls: (i) The pulsar's intensity does not switch off abruptly at the null, but…

太阳与恒星天体物理 · 物理学 2015-05-19 Bhaswati Bhattacharyya , Yashwant Gupta , Janusz Gil

We report on the pulse-to-pulse energy distributions and phase-resolved modulation properties for catalogued pulsars in the southern High Time Resolution Universe intermediate-latitude survey. We selected the 315 pulsars detected in a…