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相关论文: A Statistical Analysis of Crab Pulsar Giant Pulse …

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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…

高能天体物理现象 · 物理学 2020-05-19 A. N. Kazantsev , V. A. Potapov , M. S. Pshirkov , B. Ya. Losovskii

The Crab pulsar is well-known for its anomalous giant radio pulse emission. Past studies have concentrated only on the very bright pulses or were insensitive to the faint end of the giant pulse luminosity distribution. With our new…

星系天体物理 · 物理学 2015-05-18 R. Karuppusamy , B. W. Stappers , W. van Straten

The Crab Pulsar's radio emission is unusual, consisting predominantly of giant pulses, with durations of about a micro-second but structure down to the nano-second level, and brightness temperatures of up to $10^{37}\,$K. It is unclear how…

We report the detection and observed characteristics of giant pulses from the Crab Nebula pulsar (B0531+21) in four frequency bands covering 20-84 MHz using the recently-completed Long Wavelength Array Station 1 (LWA1) radio telescope. In…

高能天体物理现象 · 物理学 2015-06-15 S. W. Ellingson , T. E. Clarke , J. Craig , B. C. Hicks , T. J. W. Lazio , G. B. Taylor , T. L. Wilson , C. N. Wolfe

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…

星系天体物理 · 物理学 2015-05-30 Walid A. Majid , Charles J. Naudet , Stephen T. Lowe , Thomas B. H. Kuiper

We present a large survey of giant pulses from the Crab Pulsar as observed with the first station of the Long Wavelength Array. Automated methods for detecting giant pulses at low frequencies where scattering becomes prevalent are also…

太阳与恒星天体物理 · 物理学 2016-10-05 T. Eftekhari , K. Stovall , J. Dowell , F. K. Schinzel , G. B. Taylor

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…

天体物理学 · 物理学 2009-11-13 N. D. Ramesh Bhat , Steven J. Tingay , Haydon S. Knight

Individual giant radio pulses (GRPs) from the Crab pulsar last only a few microseconds. However, during that time they rank among the brightest objects in the radio sky reaching peak flux densities of up to 1500 Jy even at high radio…

天体物理学 · 物理学 2007-05-23 A. Jessner , A. Slowikowska , B. Klein , H. Lesch , C. H. Jaroschek , G. Kanbach , T. H. Hankins

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…

高能天体物理现象 · 物理学 2015-07-15 Glenn Jones

We analyze the Crab pulsar at ten frequencies from 0.43 to 8.8 GHz using data obtained at the Arecibo Observatory. Giant pulses occur only in the main and interpulse components manifest from radio frequencies to gamma-ray energies.…

天体物理学 · 物理学 2009-11-07 J. M. Cordes , N. D. R. Bhat , T. H. Hankins , M. A. McLaughlin , J. Kern

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…

天体物理学 · 物理学 2007-05-23 A. Slowikowska , A. Jessner , G. Kanbach , B. Klein

Review report of giant pulses of pulsar radio emission, based on our detections of four new pulsars with giant pulses, and the comparative analysis of the previously known pulsars with giant pulses, including the Crab pulsar and millisecond…

天体物理学 · 物理学 2008-11-26 A. D. Kuzmin

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.…

高能天体物理现象 · 物理学 2023-09-18 Rebecca Lin , Marten H. van Kerkwijk

We used a new spectral-fitting technique to identify a subpopulation of 6 narrow-band giant pulses from the Crab pulsar out of a total of 1578. These giant pulses were detected in 77 minutes of observations with the 46-m dish at the…

高能天体物理现象 · 物理学 2021-09-29 Parasar Thulasiram , Hsiu-Hsien Lin

The Crab pulsar has striking radio emission properties, with the two dominant pulse components -- the main pulse and the interpulse -- consisting entirely of giant pulses. The emission is scattered in both the Crab nebula and the…

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 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…

天体物理学 · 物理学 2009-06-23 A. V. Bilous , V. I. Kondratiev , M. V. Popov , V. A. Soglasnov

Simultaneous dual-frequency observations of giant pulses from the Crab pulsar were performed at the frequencies of 61 and 111 MHz. It is shown that scattering of giant pulses from the Crab pulsar occurs at thick, and not at thin screen.

天体物理学 · 物理学 2007-09-13 Alexander A. Ershov

We present statistical analysis of a fluence limited sample of over 1100 giant pulses from the Crab pulsar, with fluence > 130 Jy ms at ~1330 MHz. These were detected in ~260 hours of observation with the National Centre for Radio…

高能天体物理现象 · 物理学 2019-10-01 Apurba Bera , Jayaram N. Chengalur

We have carried out new, high-frequency, high-time-resolution observations of the Crab pulsar. Combining these with our previous data, we characterize bright single pulses associated with the Main Pulse, both the Low-Frequency and…

高能天体物理现象 · 物理学 2016-12-14 T. H. Hankins , J. A. Eilek , G. Jones
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