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Related papers: Multiple X-ray bursts from long discharges in air

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As a new kind of radio transient sources detected at $\sim 1.4$ GHz, fast radio bursts are specially characterized by their short durations and high intensities. Although only ten events are detected so far, fast radio bursts may actually…

High Energy Astrophysical Phenomena · Physics 2015-12-22 Y. F. Huang , J. J. Geng

Since the discovery of the accreting millisecond pulsar XTE J1814-338 a total of 27 thermonuclear bursts have been observed from the source with the Proportional Counter Array (PCA) onboard the Rossi X-ray Timing Explorer (RXTE).…

Astrophysics · Physics 2009-11-10 Tod E. Strohmayer , Craig B. Markwardt , Jean H. Swank , Jean in 't Zand

Gamma-ray bursts are flashes of high-energy radiation lasting from a fraction of a second to several hours. Military satellites made the first detections of GRBs in the late 1960s. The $\gamma$-ray emission forms from shocks in a…

High Energy Astrophysical Phenomena · Physics 2025-10-08 Andrew J. Levan

The hard X-ray bursts observed during both major outbursts of the Bursting Pulsar (GRO J1744-28) show pulsations near the neutron star spin frequency with an enhanced amplitude relative to that of the persistent emission. Consistent with…

The proportional counter and scintillator on Ginga provided unprecented spectral coverage of GRBs, from 2 - 400 keV. Below 20 keV we find evidence for a positive spectral number index in approximately 40% of our burst sample, with some…

Astrophysics · Physics 2009-10-30 T. E. Strohmayer , E. E. Fenimore , T. Murakami , Y. Yoshida

Gamma-ray bursts are produced as a result of cataclysmic events such as the collapse of a massive star or the merger of two neutron stars. We monitored the position of the close-by gamma-ray burst GRB~190829A, which originated from a…

High Energy Astrophysical Phenomena · Physics 2022-06-08 O. S. Salafia , M. E. Ravasio , J. Yang , T. An , M. Orienti , G. Ghirlanda , L. Nava , M. Giroletti , P. Mohan , R. Spinelli , Y. Zhang , B. Marcote , G. Cimò , X. Wu , Z. Li

Long gamma-ray bursts (GRBs) are commonly accepted to originate in the explosion of particularly massive stars, which gives rise to a highly relativistic jet. Internal inhomogeneities in the expanding flow give rise to internal shock waves…

A large radio outburst from Sgr A* was observed during the VLA weekly monitoring program at 2 cm, 1.3 cm and 7 mm, nearly coincident with the brightest X-ray flare detected to date with the XMM-Newton X-ray Observatory on 2002-10-03. The…

Astrophysics · Physics 2009-11-10 Jun-Hui Zhao , R. M. Herrnstein , G. C. Bower , W. M. Goss , S. M. Liu

We use archival data from the Rossi X-Ray Timing Explorer to examine 125 type I X-ray bursts from the 9 weakly magnetic accreting neutron stars where millisecond oscillations have been detected during some bursts. We find that oscillations…

Astrophysics · Physics 2016-08-30 Michael P. Muno , Deepto Chakrabarty , Duncan K. Galloway , Pavlin Savov

We report nine long X-ray bursts from neutron stars, detected with Monitor of All-sky X-ray Image (MAXI). Some of these bursts lasted for hours, and hence are qualified as superbursts, which are prolonged thermonuclear flashes on neutron…

High Energy Astrophysical Phenomena · Physics 2016-09-28 Motoko Serino , Wataru Iwakiri , Toru Tamagawa , Takanori Sakamoto , Satoshi Nakahira , Masaru Matsuoka , Kazutaka Yamaoka , Hitoshi Negoro

We report the first detection of metric radio emission from a surge, observed with the Nan\c{c}ay Radioheliograph (NRH), STEREO and other instruments. The emission was observed during the late phase of the M9 complex event…

Solar and Stellar Astrophysics · Physics 2022-06-01 C. E. Alissandrakis , S. Patsourakos , A. Nindos , C. Bouratzis , A. Hillaris

X-ray flares are generally supposed to be produced by the later central engine activities, and may share the similar physical origin with prompt emission of gamma-ray bursts (GRBs). In this paper, we have analyzed all significant X-ray…

High Energy Astrophysical Phenomena · Physics 2016-06-08 Shuang-Xi Yi , Shao-Qiang Xi , Hai Yu , F. Y. Wang , Hui-Jun Mu , Lian-Zhong Lv , En-Wei Liang

Many distinct classes of high-energy variability have been observed in astrophysical sources, on a range of timescales. The widest range (spanning microseconds-decades) is found in accreting, stellar-mass compact objects, including neutron…

High Energy Astrophysical Phenomena · Physics 2019-09-09 Duncan K. Galloway , Zac Johnston , Adelle Goodwin , Alexander Heger

Recent observations support the suggestion that short-duration gamma-ray bursts are produced by compact star mergers. The X-ray flares discovered in two short gamma-ray bursts last much longer than the previously proposed postmerger energy…

Astrophysics · Physics 2009-11-11 Z. G. Dai , X. Y. Wang , X. F. Wu , B. Zhang

The transient X-ray source GS 1826-238 was monitored during five different observing periods between August 1996 and October 1998 with the BeppoSAX Wide Field Camera instrument in the framework of a deep observation of the Galactic Center…

Astrophysics · Physics 2009-10-31 P. Ubertini , A. Bazzano , M. Cocchi , L. Natalucci , J. Heise , J. M. Muller , J. J. M. in 't Zand

Lightning in the solar nebula is considered to be one of the probable sources for producing the chondrules that are found in meteorites. Gamma-ray bursts (GRBs) provide a large flux of gamma-rays that Compton scatter and create a charge…

Astrophysics · Physics 2009-11-10 B. McBreen , E. Winston , S. McBreen , L. Hanlon

Star quakes and internal phase transitions within anomalous x-ray pulsars (AXPs) and soft $\gamma$-ray repeaters (SGRs) can produce mini contractions and pulsar glitches. Shocks break out from their surface following such contractions…

High Energy Astrophysical Phenomena · Physics 2020-10-21 Shlomo Dado , Arnon Dar

In this letter we suggest a scenario for simultaneous emission of gravitational-wave and $\gamma$-ray bursts (GRBs) from soft gamma-ray repeaters (SGRs). we argue that both of the radiations can be generated by a super-Eddington accreting…

General Relativity and Quantum Cosmology · Physics 2011-05-24 H. J. Mosquera Cuesta , J. C. N. de Araujo , O. D. Aguiar , J. E. Horvath

The origin of gamma-ray bursts (GRBs) has been enigmatic since their discovery. The situation improved dramatically in 1997, when the rapid availability of precise coordinates for the bursts allowed the detection of faint optical and radio…

We have analyzed publicly available RXTE/PCAs archival data of GRS 1915+105 during its burst/flaring state. The burst cycle ranges from 30 to 1300 s. These bursts are different from the type I and type II classical bursts seen in Low Mass…

Astrophysics · Physics 2009-11-06 J. S. Yadav , A. R. Rao