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Pulsars are the fast rotating neutron stars with strong magnetic field, that emit over a wide frequency range. In spite of the efforts during 40 years after the discovery of pulsars, the mechanism of their radio emission remains to be…

Solar and Stellar Astrophysics · Physics 2015-03-19 V. M. Kontorovich , A. B. Flanchik

The extreme timing stability of radio millisecond pulsars (MSPs) combined with their exotic environment and evolutionary history makes them excellent laboratories to probe matter in extreme condition. Population studies indicate that we…

High Energy Astrophysical Phenomena · Physics 2022-04-06 Bhaswati Bhattacharyya , Jayanta Roy

The comparative analysis of parameters is carried out for two samples of radio pulsars. Objects of the first sample have periods P > 2 sec, the second is characterized by magnetic fields at the neutron star surface $Bs > 4.4\times10^{13}$…

High Energy Astrophysical Phenomena · Physics 2020-04-20 I. F. Malov , H. P. Marozava

Pulsars (PSRs) orbiting intermediate or supermassive black holes at the centre of galaxies and globular clusters are known as Extreme Mass Ratio Binaries (EMRBs) and have been identified as precision probes of strong-field GR. For…

High Energy Astrophysical Phenomena · Physics 2020-05-13 Tom Kimpson , Kinwah Wu , Silvia Zane

Following a summary of the basic principles of pulsar timing, we present a review of recent results from timing observations of relativistic binary pulsars. In particular, we summarize the status of timing observations of the much…

Astrophysics · Physics 2009-10-31 V. M. Kaspi

In 2007, a very bright radio pulse was identified in the archival data of the Parkes Telescope in Australia, marking the beginning of a new research branch in astrophysics. In 2013, this kind of millisecond bursts with extremely high…

High Energy Astrophysical Phenomena · Physics 2021-03-08 Di Xiao , Fayin Wang , Zigao Dai

Fast radio bursts (FRBs) are millisecond-duration transient signals discovered over the past decade. Here we describe the scientific usefulness of FRBs, consider ongoing work at the Parkes telescope, and examine some relevant search…

High Energy Astrophysical Phenomena · Physics 2016-02-17 E. F. Keane , SUPERB Collaboration

We present four new fast radio bursts discovered in a search of the Parkes 70-cm pulsar survey data archive for dispersed single pulses and bursts. We searched dispersion measures (DMs) ranging between 0 to 5000 pc cm$^{-3}$ with the…

High Energy Astrophysical Phenomena · Physics 2022-08-17 F. Crawford , S. Hisano , M. Golden , T. Kikunaga , A. Laity , D. Zoeller

The recent detection of a Fast Radio Burst (FRB) from a Galactic magnetar secured the fact that neutron stars (NSs) with super-strong magnetic fields are capable of producing these extremely bright coherent radio bursts. One of the leading…

High Energy Astrophysical Phenomena · Physics 2022-03-30 Shotaro Yamasaki , Kazim Yavuz Eksi , Ersin Gogus

We report on calculations of the pulsar birthrate based on the results of the Parkes multibeam survey. From the observed sample of more than 800 pulsars, we compute the pulsar current, accounting as accurately as possible for all known…

X-ray polarimetry promises us an unprecedented look at the structure of magnetic fields and on the processes at the base of acceleration of particles up to ultrarelativistic energies in relativistic jets. Crucial pieces of information are…

High Energy Astrophysical Phenomena · Physics 2021-05-19 Fabrizio Tavecchio

Fast radio bursts are mysterious millisecond-duration transients prevalent in the radio sky. Rapid accumulation of data in recent years has facilitated an understanding of the underlying physical mechanisms of these events. Knowledge gained…

High Energy Astrophysical Phenomena · Physics 2020-11-11 Bing Zhang

I present an empirical study of the properties of fast radio bursts (FRBs): Gigahertz-frequency, dispersed pulses of extragalactic origin. I focus my investigation on the sample of seventeen FRBs detected at the Parkes radio telescope with…

High Energy Astrophysical Phenomena · Physics 2018-07-04 Vikram Ravi

Fast radio bursts (FRBs) are millisecond-timescale bursts of coherent radio emission that are luminous enough to be detectable at cosmological distances. In this review I describe the discovery of FRBs, subsequent advances in our…

High Energy Astrophysical Phenomena · Physics 2022-11-14 Matthew Bailes

We have embarked on a survey for pulsars and fast transients using the 13-beam Multibeam receiver on the Parkes radio telescope. Installation of a digital backend allows us to record 400 MHz of bandwidth for each beam, split into 1024…

Estimations of magnetic fields of neutron stars, observed as radio and X-ray pulsars, are discussed. It is shown, that theoretical and observational values for different types of radiopulsars are in good correspondence. Magnetic fields of…

Astrophysics · Physics 2007-05-23 G. S. Bisnovatyi-Kogan

We present a geometric study of the radio and gamma-ray pulsar B1055-52 based on recent observations at the Parkes radio telescope. We conclude that the pulsar's magnetic axis is inclined at an angle of 75 degrees to its rotation axis and…

Solar and Stellar Astrophysics · Physics 2009-11-13 Patrick Weltevrede , Geoff Wright

The discovery of radio pulsars over a half century ago was a seminal moment in astronomy. It demonstrated the existence of neutron stars, gave a powerful observational tool to study them, and has allowed us to probe strong gravity, dense…

High Energy Astrophysical Phenomena · Physics 2019-06-05 E. Petroff , J. W. T. Hessels , D. R. Lorimer

The Parkes Galactic Meridian Survey (PGMS) is a 5 deg X 90 deg strip to map the polarized synchrotron emission along a Galactic meridian from the Galactic plane down to the south Galactic pole. The survey is carried out at the Parkes radio…

The complete absence of radio pulsars with periods exceeding a few seconds has lead to the popular notion of the existence of a high period death line. We have recently postulated the existence of another radio quiescence boundary at high…

Astrophysics · Physics 2007-05-23 Matthew G. Baring , Alice K. Harding