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相关论文: Broadband nulling behaviour of PSR B2319+60

200 篇论文

We report on the variation in the single-pulse emission from PSR J1900+4221 (CRAFTS 19C10) observed at frequency centered at 1.25 GHz using the Five-hundred-meter Aperture Spherical radio Telescope. The integrated pulse profile shows two…

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

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

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 a study of single pulses from nine bright northern pulsars to investigate the behaviour of circular polarisation, V. The observations were conducted with the Effelsberg 100-m radio telescope at 1.41 GHz and 4.85 GHz and the…

天体物理学 · 物理学 2009-11-10 A. Karastergiou , S. Johnston , D. Mitra , A. G. J. van Leeuwen , R. T. Edwards

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…

高能天体物理现象 · 物理学 2021-10-22 Rukiye Rejep , N. Wang , W. M. Yan , Z. G. Wen

In this study, we report on a detailed single pulse analysis of the radio emission from the pulsar J1401$-$6357 (B1358$-$63) based on data observed with the ultrawideband low-frequency receiver on the Parkes radio telescope. In addition to…

高能天体物理现象 · 物理学 2022-12-28 J. L. Chen , Z. G. Wen , X. F. Duan , D. L. He , N. Wang , H. G. Wang , R. Yuen , J. P. Yuan , W. M. Yan , Z. Wang , C. B. Lv , H. Wang , S. R. Cui

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

We report new results obtained from multi-frequency observations of PSR B0826-34 with the Giant Metrewave Radio Telescope (GMRT). (1) We find no evidence of weak emission during the typical long null state of this pulsar, simultaneously at…

天体物理学 · 物理学 2009-11-13 B. Bhattacharyya , Y. Gupta , J. Gil

We report the observations of single pulse emission from the pulsar B0809+74 at 150 MHz using the Polish LOFAR station, PL-611. The three major phenomena of subpulse drifting, nulling and mode changing associated with single pulse…

The pulse profile of pulsar B1822-09 exhibits a very peculiar kind of mode changing: a "precursor" appearing just in front of the Main-Pulse (MP) exhibits periods of nulling, during which an interpulse (IP) becomes detectable at rotation…

天体物理学 · 物理学 2009-11-10 J. Dyks , Bing Zhang , J. Gil

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…

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 report on the discovery of three new pulsars in the first blind survey of the north Galactic plane (45 degrees < l < 135 degrees; |b| < 1 degrees with the Giant Meterwave Radio telescope (GMRT) at an intermediate frequency of 610 MHz.…

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…

Sub-pulse drifting in pulsar radio emission is considered to be one of the most promising phenomenon for uncovering the underlying physical processes. Here we present a detailed study of such a phenomenon in observations of PSR…

高能天体物理现象 · 物理学 2021-11-17 Parul Janagal , Manoneeta Chakraborty , N. D. Ramesh Bhat , Bhaswati Bhattacharya , Samuel J. McSweeney

The behaviour of the pulsar spectrum at high radio frequencies can provide decisive information about the nature of the radio emission mechanism. We report recent observations of a selected sample of pulsars at lambda=9mm (32 GHz) with the…

天体物理学 · 物理学 2009-11-13 O. Loehmer , A. Jessner , M. Kramer , R. Wielebinksi , O. Maron

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 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…