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Observations of short gamma-ray bursts indicate ongoing energy injection following the prompt emission, with the most likely candidate being the birth of a rapidly rotating, highly magnetised neutron star. We utilise X-ray observations of…

高能天体物理现象 · 物理学 2016-03-09 Paul D Lasky , Kostas Glampedakis

Gamma ray bursts (GRBs) are short and intense pulses of $\gamma$-rays arriving from random directions in the sky. Several years ago Amelino-Camelia et al. pointed out that a comparison of time of arrival of photons at different energies…

天体物理学 · 物理学 2009-11-10 Tsvi Piran

This paper provides an overview of the current state of the stripping model for short gamma-ray bursts. After the historical joint detection of the gravitational wave event GW170817 and the accompanying gamma-ray burst GRB170817A, the…

高能天体物理现象 · 物理学 2021-05-18 S. Blinnikov , D. Nadyozhin , N. Kramarev , A. Yudin

Continuous gravitational waves (GWs) of neutrons stars haven't been detected directly until now. One possible way to indirectly identify their signatures is via the correlation between magnetars and gamma-ray bursts (GRBs), since, under…

高能天体物理现象 · 物理学 2024-03-05 Shuang Du

Recently, several new correlations between the observed $\gamma$-ray and the X-ray properties of gamma-ray bursts (GRBs) were inferred from a comprehensive analysis of the X-ray light curves of more than 650 GRBs measured with the Swift…

高能天体物理现象 · 物理学 2015-06-04 Shlomo Dado , Arnon Dar

The detection of GW170817 in gravitational waves and gamma rays revealed that short gamma-ray bursts are associated with the merger of neutron-stars. Gamma rays are thought to result from the formation of collimated jets, but the details of…

高能天体物理现象 · 物理学 2020-06-10 Amanda Farah , Reed Essick , Zoheyr Doctor , Maya Fishbach , Daniel E. Holz

We report evidence from the 3B Catalogue that long ($T_{90} > 10$ s) and short ($T_{90} < 10$ s) gamma-ray bursts represent distinct source populations. Their spatial distributions are significantly different, with long bursts having…

天体物理学 · 物理学 2009-10-28 J. I. Katz , L. M. Canel

Short Gamma-Ray Bursts (GRBs) are explosions of cosmic origin believed to be associated with the merger of two compact objects, either two neutron stars, or a neutron star and a black hole. The presence of at least one neutron star has long…

高能天体物理现象 · 物理学 2016-04-27 Rosalba Perna , Davide Lazzati , Bruno Giacomazzo

From Galactic binary sources, to extragalactic magnetized neutron stars, to long-duration GRBs without associated supernovae, the types of sources we now believe capable of producing bursts of gamma-rays continues to grow apace. With this…

天体物理学 · 物理学 2009-06-23 Joshua S. Bloom , Nathaniel R. Butler , Daniel A. Perley

For the first time, a short gamma-ray burst (GRB) was unambiguously associated with a gravitational wave (GW) observation from a binary neutron star (NS) merger. This allows us to link the details of the central engine properties to GRB…

Gamma-Ray Bursts are likely associated with a catastrophic energy release in stellar mass objects. Electromagnetic observations provide important, but indirect information on the progenitor. On the other hand, gravitational waves emitted…

宇宙学与河外天体物理 · 物理学 2019-08-13 Alessandra Corsi

In these proceedings, I discuss recent progress in understanding the nature of cosmic gamma-ray bursts (GRB), with the focus on the apparent relation of several GRBs with an energetic subclass of stellar explosions, type Ib/c core-collapse…

天体物理学 · 物理学 2007-05-23 K. A. Postnov

In this paper we give a brief review of our recent studies on the long and short gamma-ray bursts (GRBs) detected Swift, in an effort to understand the puzzle of classifying GRBs. We consider that it is still an appealing conjecture that…

高能天体物理现象 · 物理学 2014-01-29 Lang Shao , Fu-Wen Zhang , Zi-Gao Dai , Zhi-Ping Jin , Jing-Zhi Yan , Da-Ming Wei

The cosmological origin of $\gamma$-ray bursts (GRBs) is now commonly accepted and, according to several models for the central engine, GRB sources should also emit at the same time gravitational waves bursts (GWBs). We have performed two…

广义相对论与量子宇宙学 · 物理学 2019-08-17 P. Tricarico , A. Ortolan , A. Solaroli , G. Vedovato , L. Baggio , M. Cerdonio , L. Taffarello , J. Zendri , R. Mezzena , G. A. Prodi , S. Vitale , P. Fortini , M. Bonaldi , P. Falferi

We study the properties of short gamma-ray bursts (GRBs), based on the assumption that they are all connected to the binary neutron star mergers, whose formation mechanism contains a large amount of uncertainty. In particular, the merger…

天体物理学 · 物理学 2010-11-15 Shin'ichiro Ando

Gamma-ray burst (GRB) prompt emission is highly beamed, and understanding the jet geometry and beaming configuration can provide information on the poorly understood central engine and circum-burst environment. Prior to the advent of…

高能天体物理现象 · 物理学 2020-04-21 Sylvia Biscoveanu , Eric Thrane , Salvatore Vitale

Two types of Gamma-ray bursts (GRBs) are observed: short duration hard spectrum GRBs and long duration soft spectrum GRBs. For many years long GRBs were the focus of intense research while the lack of observational data limited the study of…

天体物理学 · 物理学 2010-04-06 Ehud Nakar

If $\gamma$-ray bursts (GRBs) are accompanied by gravitational wave bursts (GWBs) the correlated output of two gravitational wave detectors evaluated in the moments just prior to a GRB will differ from that evaluated at times not associated…

广义相对论与量子宇宙学 · 物理学 2010-01-06 Lee Samuel Finn , Soumya D. Mohanty , Joseph D. Romano

In this review we briefly summarize the recent developments in the research on Gamma-Ray Bursts, and discuss in more details the recent results derived from X-ray spectroscopy, in particular the detection of X-ray narrow features and their…

天体物理学 · 物理学 2009-11-10 Luigi Piro

A long-standing paradigm in astrophysics is that collisions- or mergers- of two neutron stars (NSs) form highly relativistic and collimated outflows (jets) powering gamma-ray bursts (GRBs) of short (< 2 s) duration. However, the…

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