中文
相关论文

相关论文: A Study of Giant Pulses from PSR J1824-2452A

200 篇论文

We present the results of wide-band (720-2400 MHz) study of PSR B1821-24A (J1824-2452A, M28A), an energetic millisecond pulsar visible in radio, X-rays and gamma-rays. In radio, the pulsar has a complex average profile which spans >85% of…

太阳与恒星天体物理 · 物理学 2015-06-23 A. V. Bilous , T. T. Pennucci , P. Demorest , S. M. Ransom

The millisecond pulsar J1823-3021A is a very active giant pulse emitter in the globular cluster NGC 6624. New observations with the MeerKAT radio telescope have revealed 14350 giant pulses over 5 hours of integration time, with an average…

We have searched for microsecond-timescale broadband emission from a sample of eighteen millisecond pulsars. Our study places strong limits on such emission from several millisecond pulsars and shows that it is only present in a small…

天体物理学 · 物理学 2009-11-10 H. S. Knight , M. Bailes , R. N. Manchester , S. M. Ord

Giant radio pulses of the millisecond pulsar B1937+21 were recorded with the S2 VLBI system at 1.65 GHz with NASA/JPL's 70-m radio telescope at Tidbinbilla, Australia. These pulses have been observed as strong as 65000 Jy with widths <= 15…

天体物理学 · 物理学 2009-11-10 V. A. Soglasnov , M. V. Popov , N. Bartel , W. Cannon , A. Yu. Novikov , V. I. Kondratiev , V. I. Altunin

We have carried out a survey for `giant pulses' in 5 millisecond pulsars. We detect individual pulses from the high Edot pulsar PSR B1821-24 with energies exceeding 50x the mean pulse energy. These giant pulses are concentrated in a narrow…

天体物理学 · 物理学 2009-11-06 Roger W. Romani , Simon Johnston

We have conducted a search for giant pulses from four millisecond pulsars using the 100m Green Bank Telescope. Coherently dedispersed time-series from PSR J0218+4232 were found to contain giant pulses of very short intrinsic duration whose…

天体物理学 · 物理学 2009-11-13 H. S. Knight , M. Bailes , R. N. Manchester , S. M. Ord , B. A. Jacoby

PSR B0540-69 is one of a small handful of pulsars known to emit giant pulses and the only extra-galactic pulsar known to do so. We observed the pulsar for a total of 72 hr over a 6 month interval and detected 141 giant pulses. We have…

天体物理学 · 物理学 2009-11-10 Simon Johnston , R. W. Romani , F. E. Marshall , W. Zhang

We report the detection of giant pulse emission from PSR~B0950+08 in 12 hours of observations made simultaneously at 42~MHz and 74~MHz, using the first station of the Long Wavelength Array, LWA1. We detected 275 giant pulses (in 0.16\% of…

高能天体物理现象 · 物理学 2016-08-10 Jr-Wei Tsai , John H Simonetti , Bernadine Akukwe , Brandon Bear , Jonathan D Gough , Peter Shawhan , Michael Kavic

We report the emission variations in PSR J1047$-$6709 observed at 1369 MHz using the Parkes 64 m radio telescope. This pulsar shows two distinct emission states: a weak state and a bright emission state. We detected giant pulses (GPs) in…

高能天体物理现象 · 物理学 2020-12-23 S. N. Sun , W. M. Yan , N. Wang

We report the discovery of the first giant pulses from an extragalactic radio pulsar. Observations of PSR B0540-69 in the Large Magellanic Cloud made with the Parkes radio telescope at 1.38 GHz show single pulses with energy more than 5000…

天体物理学 · 物理学 2009-11-07 Simon Johnston , Roger W. Romani

Giant pulses are rare bright radio bursts that occur in restricted ranges of pulsar rotational phase. Here we report giant pulses from PSR B0355+54, a pulsar with spin period ~0.156 s. Using 7.97 hours of observations centred at 1.46 GHz,…

高能天体物理现象 · 物理学 2026-05-21 Sergei L. Kurdubov , Dmitry A. Marshalov

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…

天体物理学 · 物理学 2009-10-31 A. Kinkhabwala , S. E. Thorsett

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…

天体物理学 · 物理学 2009-11-10 Iver H. Cairns

We present here the detection of giant-pulse emission from PSR B0950+08, a normal-period pulsar. The observations, made at 103 MHz and lasting for about ten months, have shown on a number of days the frequency of occurrence of giant pulses…

高能天体物理现象 · 物理学 2013-06-11 Ashok K. Singal , Hari Om Vats

The first station of the Long Wavelength Array (LWA1) was used to study PSR~B0031-07 with simultaneous observations at 38 and 74~MHz. We found that 158 (0.35\%) of the observed pulses at 38~MHz and 221 (0.49\%) of the observed pulses at…

高能天体物理现象 · 物理学 2016-08-17 Jr-Wei Tsai , John H. Simonetti , Brandon Bear , Jonathan D. Gough , Joseph R. Newton , Michael Kavic

We report the detection of giant pulse emission from PSR B0950+08 in 24 hours of observations made at 39.4 MHz, with a bandwidth of 16 MHz, using the first station of the Long Wavelength Array, LWA1. We detected 119 giant pulses from PSR…

We report the discovery of giant pulse (GP) emission from the transitional millisecond pulsar (tMSP) PSR J1227$-$4853, using 174 hours of single-pulse data from the upgraded Giant Metrewave Radio Telescope (uGMRT). This marks the first…

We detected giant pulses from the pulsar PSR B1112+50. A pulse with an intensity that is a factor of 30 or more higher than the intensity of the average pulse is encountered approximately once in 150 observed pulses. The peak .ux density of…

天体物理学 · 物理学 2009-11-07 A. A. Ershov , A. D. Kuzmin

Giant pulses (GPs) occur in high magnetic-field millisecond pulsars (MSPs) and young Crab-like pulsars. Motivated by the fast radio bursts (FRBs) discovered in a globular cluster (GC) in the M81, we undertook baseband observations of PSR…

高能天体物理现象 · 物理学 2025-06-19 Simon C. -C. Ho , Matthew Bailes , Chris Flynn , Federico Abbate

Seven giant radio pulses were recorded from the millisecond pulsar PSR B1937+21 during $\approx$ 8.1 minutes observation by the Ooty Radio Telescope (ORT) at 326.5 MHz. Although sparse, these observations support most of the giant pulse…

天体物理学 · 物理学 2009-11-07 M. Vivekanand
‹ 上一页 1 2 3 10 下一页 ›