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Related papers: Radio emission physics in the Crab pulsar

200 papers

We have detected occasional, short-lived ``echoes'' of giant pulses from the Crab pulsar. These echo events remind us of previously reported echoes from this pulsar, but they differ significantly in detail. Our echo events last at most only…

Astrophysics · Physics 2007-05-23 J. H. Crossley , J. A. Eilek , T. H. Hankins

We have observed the pulsar in the Crab Nebula at high radio frequencies and high time resolution. We present continuously sampled data at 640-ns time resolution, and individual bright pulses recorded at down to 0.25-ns time resolution.…

High Energy Astrophysical Phenomena · Physics 2015-06-23 T. H. Hankins , G. Jones , J. A. Eilek

The pulsar radio emission is commonly associated with the plasma outflow in the open field line tube; then a pencil beam is emitted along the pulsar magnetic axis. Observations suggest that there is an additional radio emission mechanism…

High Energy Astrophysical Phenomena · Physics 2018-12-12 Yuri Lyubarsky

We present a review of observed parameters of giant radio pulses, based on the observations conducted by our group during recent years. The observations cover a broad frequency range of about 3 octaves, concentrating between 600 and 4850…

Astrophysics · Physics 2009-06-23 A. V. Bilous , V. I. Kondratiev , M. V. Popov , V. A. Soglasnov

We have observed the Crab pulsar with the Deep Space Network (DSN) Goldstone 70 m antenna at 1664 MHz during three observing epochs for a total of 4 hours. Our data analysis has detected more than 2500 giant pulses, with flux densities…

Astrophysics of Galaxies · Physics 2015-05-30 Walid A. Majid , Charles J. Naudet , Stephen T. Lowe , Thomas B. H. Kuiper

We present analysis of the rate of giant radio pulses (GPs) emission from the Crab pulsar (B0531+21). Results of our 9 years daily observations with the Large Phased Array radio telescope of Pushchino Radio Astronomy Observatory at 111 MHz…

High Energy Astrophysical Phenomena · Physics 2020-05-19 A. N. Kazantsev , V. A. Potapov , M. S. Pshirkov , B. Ya. Losovskii

A small number of pulsars are known to emit giant pulses, single pulses much brighter than average. Among these is PSR J0534+2200, also known as the Crab pulsar, a young pulsar with high giant pulse rates. Long-term monitoring of the Crab…

We have studied the statistics of giant pulses from the Crab pulsar for the first time with particular reference to their widths. We have analyzed data collected during 3.5 hours of observations conducted with the Westerbork Synthesis Radio…

Astrophysics · Physics 2009-11-13 M. V. Popov , B. Stappers

Giant pulses are short, intense outbursts of radio emission with a power-law intensity distribution that have been observed from the Crab Pulsar and PSR B1937+21. We have undertaken a systematic study of giant pulses from PSR B1937+21 using…

Astrophysics · Physics 2009-10-31 A. Kinkhabwala , S. E. Thorsett

In this Letter we propose that coherent radio emission of Crab, other young energetic pulsars, and millisecond pulsars is produced in the magnetospheric current sheet beyond the light cylinder. We carry out global and local two-dimensional…

High Energy Astrophysical Phenomena · Physics 2019-05-01 Alexander Philippov , Dmitri A. Uzdensky , Anatoly Spitkovsky , Benoît Cerutti

VLBI observations of the Crab pulsar with the 64-m radio telescope at Kalyazin (Russia) and the 46-m radio telescope of the Algonquin Radio Observatory (Canada) at 2.2 GHz and single-dish observations of the millisecond pulsar B1937+21 with…

We analyzed four epochs of beamformed EVN data of the Crab Pulsar at 1658.49 MHz. With the high sensitivity resulting from resolving out the Crab Nebula, we are able to detect even the faint high-frequency components in the folded profile.…

High Energy Astrophysical Phenomena · Physics 2023-09-18 Rebecca Lin , Marten H. van Kerkwijk

Giant pulses and giant micropulses from pulsars are distinguished from normal pulsed emission by their large fluxes, rarity, approximately power-law distribution of fluxes and, typically, occurrence in restricted phase windows. Here…

Astrophysics · Physics 2009-11-10 Iver H. Cairns

Pulse-to-pulse intensity variations are a common property of pulsar radio emission. For some of the objects single pulses are often 10-times stronger than their average pulse. The most dramatic events are so-called giant radio pulses…

Astrophysics · Physics 2007-05-23 A. Slowikowska , A. Jessner , G. Kanbach , B. Klein

Formation of giant radio pulses is attributed to propagation effects in the plasma of pulsar magnetosphere. Induced scattering of radio waves by the plasma particles is found to lead to an efficient redistribution of the radio emission in…

Astrophysics · Physics 2014-10-13 S. A. Petrova

We report observations of Crab giant pulses made with the Australia Telescope Compact Array and a baseband recorder system, made simultaneously at two frequencies, 1300 and 1470 MHz. These observations were sensitive to pulses with…

Astrophysics · Physics 2009-11-13 N. D. Ramesh Bhat , Steven J. Tingay , Haydon S. Knight

Radio giant pulses provide a unique opportunity to study the pulsar radio emission mechanism in exquisite detail. Previous studies have revealed a wide range of properties and phenomena, including extraordinarily high brightness…

High Energy Astrophysical Phenomena · Physics 2015-07-15 Glenn Jones

The results of simultaneous multifrequency observations of giant radio pulses from the Crab pulsar, PSR B0531+21, at 23, 111, and 600 MHz are presented and analyzed. Giant pulses were detected at a frequency as low as 23 MHz for the first…

We present the results of the search for a correlation between giant radio pulses (GRPs) at 1.4 GHz and hard X-rays at 15-75 keV from the Crab pulsar. We made simultaneous ground and satellite observations of the Crab pulsar over 12 hours…

We study dynamics of drift waves in the pair plasma of pulsar magnetosphere. It is shown that nonlinear of the drift waves with plasma particles leads to the formation of small scale structures. We show that cyclotron instability developed…

High Energy Astrophysical Phenomena · Physics 2017-12-15 G. Machabeli , I. Malov , G. Gogoberidze