中文
相关论文

相关论文: Revisiting Pushchino RRAT search using neural netw…

200 篇论文

Rotating Radio Transients (RRATs) are neutron stars that emit sporadic radio bursts. We detected 1955 single pulses from RRAT J1913+1330 using the 19-beam receiver of the Five-hundred-meter Aperture Spherical Radio Telescope (FAST). These…

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

We have analysed the long- and short-term time dependence of the pulse arrival times and the pulse detection rates for eight Rotating Radio Transient (RRAT) sources from the Parkes Multi-beam Pulsar Survey (PMPS). We find significant…

A transient (LPA J0108+13) with repeated bursts was detected on the Large Phased Array (LPA) radio telescope at a central frequency of 110.4 MHz in the direction of the radio galaxy 3C 33. The flux density of bursts ranges from tens to…

高能天体物理现象 · 物理学 2026-01-21 A. M. Anpilogov , S. A. Tyul'bashev

Pulsar searches are computationally demanding efforts to discover dispersed periodic signals in time- and frequency-resolved data from radio telescopes. The complexity and computational expense of simultaneously determining the…

天体物理仪器与方法 · 物理学 2021-07-14 Lars Künkel , Rajat M. Thomas , Joris P. W. Verbiest

Discoveries of rotating radio transients and fast radio bursts (FRBs) in pulsar surveys suggest that more of such transient sources await discovery in archival data sets. Here we report on a single-pulse search for dispersed radio bursts…

高能天体物理现象 · 物理学 2015-12-02 A. Rane , D. R. Lorimer , S. D. Bates , N. McMann , M. A. McLaughlin , K. Rajwade

Rotating Radio Transients (RRATs) represent a relatively new class of pulsar, primarily characterised by their sporadic bursting emission of single pulses on time scales of minutes to hours. In addition to the difficulty involved in…

高能天体物理现象 · 物理学 2019-09-11 B. W. Meyers , S. E. Tremblay , N. D. R. Bhat , R. M. Shannon , S. M. Ord , C. Sobey , M. Johnston-Hollitt , M. Walker , R. B. Wayth

We present the discovery of 30 new Galactic sources from the MeerTRAP project, a commensal fast radio transient search programme using the MeerKAT telescope. These sources were all identified via a single pulse search. Most of them are…

We describe our studies of the radio and high-energy properties of Rotating Radio Transients (RRATs). We find that the radio pulse intensity distributions are log-normal, with power-law tails evident in two cases. For the three RRATs with…

太阳与恒星天体物理 · 物理学 2015-05-27 Joshua Miller , Maura McLaughlin , Nanda Rea , Evan Keane , Andrew Lyne , Michael Kramer , Richard Manchester , Kosmas Lazaridis

Pulsars are rapidly rotating neutron stars that emit pulses of radiation at regular intervals, typically ranging from milliseconds to seconds. The precise recording and modelling of the arrival times of pulsar emission is known as timing…

高能天体物理现象 · 物理学 2025-12-03 Thulo Letsele , Mechiel Christiaan Bezuidenhout , the MeerTRAP collaboration

Since the discovery of pulsars, dozens of surveys have already been conducted with their searches. In the course of surveys in the sky, areas from thousands to tens of thousands of square degrees are explored. Despite repeated observations…

高能天体物理现象 · 物理学 2022-08-10 S. A. Tyul'bashev , G. E. Tyul'basheva , M. A. Kitaeva

We present an automated search method for radio transients on the minute timescale focused on the emerging long period transients (LPTs) in image-plane radio data. The method is tuned for use with the Murchison Widefield Array (MWA) and…

天体物理仪器与方法 · 物理学 2025-10-07 Csanád Horváth , Natasha Hurley-Walker , Samuel J. McSweeney , Timothy J. Galvin , John Morgan

Rotating radio transients (RRATs) are a sub-class of pulsars characterized by sporadic emission and thus can generally only be studied by analysis of their single-pulses. Here we present a single-pulse analysis using 11 years of timing data…

高能天体物理现象 · 物理学 2018-10-26 Brent Shapiro-Albert , Maura McLaughlin , Evan Keane

On the Large Phased Array (LPA) of Lebedev Physics Institute (LPI), a search for pulsars outside the Galaxy plane was carried out in a 300 sq. deg area. The search with a sensitivity 5-10 times better than that of previously conducted…

高能天体物理现象 · 物理学 2023-05-03 S. A. Tyul'bashev , G. E. Tyul'basheva

We report on a time-domain search for pulsars in 44 steep spectrum radio sources originally identified from recent imaging surveys. The time-domain search was conducted at 327 MHz using the Ooty radio telescope, and utilized a semi-coherent…

高能天体物理现象 · 物理学 2018-09-05 Yogesh Maan , Cees Bassa , Joeri van Leeuwen , M. A. Krishnakumar , Bhal Chandra Joshi

Image-based searches have become a complementary approach for identifying pulsars, particularly at MHz frequencies where scattering and high dispersion measures affect high-time resolution observations. In this work, we searched the…

星系天体物理 · 物理学 2025-09-04 Silvia Mantovanini , N. Hurley-Walker , G. Anderson , K. Ross , S. W. Duchesne , T. J. Galvin

During the last few years there were discovered and deeply examined several transient neutron stars (Rotating Radio Transients). It is already well accepted that these objects are rotating neutron stars. But their extraordinary features…

天体物理学 · 物理学 2007-09-14 D. Lomiashvili , G. Machabeli , I. Malov

We use recent population synthesis results to investigate the distribution of pulsars in the frequency space, having a gravitational strain high enough to be detected by the future generations of laser beam interferometers. We find that…

天体物理学 · 物理学 2008-11-26 Tania Regimbau , Jose Antonio de Freitas Pacheco

We have reprocessed a set of observations of 75 bright, unidentified, steep-spectrum polarized radio sources taken with the Green Bank 43-m telescope to find previously undetected sub-millisecond pulsars and radio bursts. The (null) results…

高能天体物理现象 · 物理学 2021-02-03 F. Crawford , J. Margeson , B. Nguyen , T. Saigal , O. Young , D. Agarwal , K. Aggarwal

We have used the 150 MHz radio continuum survey (TGSS ADR) from the Giant Metrewave Radio Telescope (GMRT) to search for phase-averaged emission toward all well-localized radio pulsars north of -53deg Declination. We detect emission toward…

高能天体物理现象 · 物理学 2016-10-05 D. A. Frail , P. Jagannathan , K. P. Mooley , H. T. Intema