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Related papers: The Evolution of Nulling in Pulsars

200 papers

Periodic modulations are seen in normal period pulsars ($P >$ 0.1 sec) over timescales ranging from a few seconds to several minutes. Such modulations have usually been associated with the phenomenon of subpulse drifting. A number of recent…

High Energy Astrophysical Phenomena · Physics 2020-02-12 Rahul Basu , Dipanjan Mitra , Giorgi I. Melikidze

It has recently been shown that there is a close correlation between the slowdown rates and the pulse shapes of six pulsars, and between the slowdown rates and the flux density of three others. This indicates that these phenomena are…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Andrew Lyne

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…

Solar and Stellar Astrophysics · Physics 2015-05-19 Bhaswati Bhattacharyya , Yashwant Gupta , Janusz Gil

We report detailed investigation of nulling and drifting behavior of two pulsars PSRs J1741-0840 and J1840-0840 observed from the Giant Meterwave Radio Telescope at 625 MHz. PSR J1741-840 was found to show nulling fraction (NF) of around…

High Energy Astrophysical Phenomena · Physics 2017-10-27 Gajjar Vishal , J. P. Yuan , R. Yuen , Z. G. Wen , Z. Y. Liu , N. Wang

Simultaneous observations at four different frequencies viz. 313, 607, 1380 and 4850 MHz, for three pulsars, PSRs B0031-07, B0809+74 and B2319+60, are reported in this paper. Identified null and burst pulses are highly concurrent across…

Solar and Stellar Astrophysics · Physics 2015-06-22 Vishal Gajjar , Bhal Chandra Joshi , Michael Kramer , Ramesh Karuppusamy , Roy Smits

We report new results from a nulling study of PSR~B0751+32 (PSR J0754+3231), observed at 1250~MHz with the Five hundred meter Aperture Spherical radio Telescope (FAST). Our analysis confirms the presence of periodic nulling in this pulsar.…

High Energy Astrophysical Phenomena · Physics 2026-04-10 W. M. Yan , N. Wang , F. F. Kou , Z. Y. Liu , J. P. Yuan , Z. G. Wen S. N. Sun , M. Y. Zou , Y. R. Wen , X. J. Chen

We have found that there are two distinct emission modes in PSR B0809+74. Beside its normal and most common mode, the pulsar emits in a significantly different quasi-stable mode after most or possibly all nulls, occasionally for over 100…

We present an analysis of 4 nulling pulsars with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). For PSR J1649+2533, our results suggest mode changing rather than subpulse drifting as previously reported at lower…

High Energy Astrophysical Phenomena · Physics 2025-11-07 Jingbo Wang , Jintao Xie , Jing Zou , Jianfei Tang

Many pulsars in the known population exhibit nulling, which is characterised by a sudden cessation and subsequent restoration of radio emission. In this work, we present the localization, timing, and emission properties of a GHRSS…

High Energy Astrophysical Phenomena · Physics 2023-07-12 Shubham Singh , Jayanta Roy , Shyam Sunder , Bhaswati Bhattacharyya , Sanjay Kudale

We report on radiation properties of extreme nulling pulsar J1502-5653, by analyzing the data acquired from the Parkes 64-m telescope at 1374 MHz. The radio emission from this pulsar exhibits sequences of several tens to several hundreds…

Solar and Stellar Astrophysics · Physics 2015-06-05 J. Li , A. Esamdin , R. N. Manchester , M. F. Qian , H. B. Niu

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…

High Energy Astrophysical Phenomena · Physics 2018-02-14 Arun Naidu , Bhal Chandra Joshi , P. K Manoharan , M. A Krishnakumar

Pulsars are known to manifest complex phenomena, such as nulling, sub-pulse drifting, and periodicity. Within the purview of this investigation, we have harnessed the wavelet analysis technique to scrutinize the multifaceted periodicities…

High Energy Astrophysical Phenomena · Physics 2024-03-19 Peng-Fu Tian , Ping Zhang , Wen Yang , Wei Wang , Pei Wang

We present a detailed single-pulse study of the long-period pulsar PSR J2129+4119 using high-sensitivity FAST observations. Despite locating well below the traditional death line, the pulsar exhibits sustained and multi-modal emission…

How pulsars radiate is a long-standing problem. Detailed polarization measurements of individual pulses shed light on currently unknown emission processes. Recently, based on supersensitive observations, dwarf pulses have been recognized as…

High Energy Astrophysical Phenomena · Physics 2024-03-19 Yi Yan , J. L. Han , D. J. Zhou , L. Xie , F. F. Kou , P. F. Wang , C. Wang , T. Wang

In this paper, we investigate the emission properties of PSR J1727-2739, whose mean pulse profile has two main components, by analysing five single-pulse observations made using the Parkes 64-m radio telescope with a central frequency of…

High Energy Astrophysical Phenomena · Physics 2021-10-22 Rukiye Rejep , N. Wang , W. M. Yan , Z. G. Wen

We have carried out a detailed study of individual pulse emission from the pulsar J1741$-$0840 (B1738$-$08), observed using the Parkes and Effelsberg radio telescopes at the $L$ band. The pulsar exhibits four emission components which are…

High Energy Astrophysical Phenomena · Physics 2024-10-01 Yonghua Xu , Zhigang Wen , Jianping Yuan , Zhen Wang , Xuefeng Duan , Zhen Wang , Na Wang , Min Wang , Hongguang Wang , Abdujappar Rusul , Longfei Hao , Wei Han

PSR J0026-1955 was independently discovered by the Murchison Widefield Array (MWA) recently. The pulsar exhibits subpulse drifting, where the radio emission from a pulsar appears to drift in spin phase within the main pulse profile, and…

High Energy Astrophysical Phenomena · Physics 2023-07-19 Parul Janagal , Samuel J. McSweeney , Manoneeta Chakraborty , N. D. Ramesh Bhat

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…

High Energy Astrophysical Phenomena · Physics 2020-09-14 Rahul Basu , Wojciech Lewandowski , Jarosław Kijak

We present an analysis of the emission behaviour of PSR J1107-5907, a source known to exhibit separate modes of emission, using observations obtained over approximately 10 yr. We find that the object exhibits two distinct modes of emission;…

High Energy Astrophysical Phenomena · Physics 2015-06-19 N. J. Young , P. Weltevrede , B. W. Stappers , A. G. Lyne , M. Kramer

Pulsars are often lauded for their (relative) rotational and radio emission stability over long time scales. However, long-term observing programmes are identifying an increasing number of pulsars that deviate from this preconceived notion.…

High Energy Astrophysical Phenomena · Physics 2025-03-13 M. E. Lower , A. Karastergiou , S. Johnston , P. R. Brook , S. Dai , M. Kerr , R. N. Manchester , L. S. Oswald , R. M. Shannon , C. Sobey , P. Weltevrede