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The use of Gamma Ray Bursts as ``standard candles'' has been made possible by the recent discovery of a very tight correlation between their rest frame intrinsic properties. This correlation relates the GRB prompt emission peak spectral…

天体物理学 · 物理学 2009-11-13 G. Ghirlanda , G. Ghisellini , L. Nava , C. Firmani

Several correlations among Gamma-Ray Bursts (GRBs) quantities, both in the prompt and afterglow emissions, have been established during the last decades, thus enabling the standardization of GRBs as cosmological probes. Since GRBs are…

宇宙学与河外天体物理 · 物理学 2024-10-29 Giada Bargiacchi , Maria Giovanna Dainotti , Salvatore Capozziello

A gamma-ray burst (GRB) releases an amount of energy similar to that of a supernova explosion, which combined with its rapid variability suggests an origin related to neutron stars or black holes. Since these compact stellar remnants form…

天体物理学 · 物理学 2020-11-25 Ralph A. M. J. Wijers , Joshua S. Bloom , Jasjeet S. Bagla , Priyamvada Natarajan

We propose a new method to use gamma-ray bursts (GRBs) as an alternative probe of the dark energy. By calibrating luminosity-variability and luminosity-lag time relations at low redshift where distance-redshift relations have been already…

天体物理学 · 物理学 2007-05-23 K. Takahashi , M. Oguri , K. Kotake , H. Ohno

Gamma-Ray Burst (GRB) explosions from the first generation of stars offer an exciting opportunity to probe the epoch of reionization. Clues about how and when the intergalactic medium was ionized can be read off their UV emission spectrum.…

天体物理学 · 物理学 2007-05-23 Abraham Loeb

The counts-in-cells and the two-point angular correlation function method are used to test the randomnesses in the angular distributions of both the all gamma-ray bursts collected at BATSE Catalog, and also their three subclasses ("short",…

天体物理学 · 物理学 2009-10-31 A. Meszaros , Z. Bagoly , I. Horvath , L. G. Balazs , R. Vavrek

Gravitationally lensed Gamma-ray bursts (GRBs) offer critical advantages over other lensed sources. They can be detected via continuously operating detectors covering most of the sky. They offer extremely high time resolution to determine…

高能天体物理现象 · 物理学 2025-03-27 A. J. Levan , B. P. Gompertz , G. P. Smith , M. E. Ravasio , G. P. Lamb , N. R. Tanvir

Gamma-ray bursts (GRBs) are cosmological explosions which carry valuable information from the distant past of the expanding universe. One of the greatest discoveries in modern cosmology is the finding of the accelerated expansion of the…

高能天体物理现象 · 物理学 2016-06-15 Rupal Basak , A. R. Rao

Naked singularities appear naturally in dynamically evolving solutions of Einstein equations involving gravitational collapse of radiation, dust and perfect fluids, provided the rate of accretion is less than a critical value. We propose…

高能物理 - 理论 · 物理学 2009-10-22 Sandip K. Chakrabarti , Pankaj S. Joshi

In this paper, we examine the spacial distribution of gamma-ray bursts (GRBs) using a sample of 373 objects. We subdivide the GRB data into two redshift intervals over the redshift range $0<z< 6.7$. We measure the two-point correlation…

宇宙学与河外天体物理 · 物理学 2015-07-07 Ming-Hua Li , Hai-Nan Lin

We present a new method aimed to handle long Gamma-Ray Burst (GRBs) as cosmic rulers. The recent discovery of a tight correlation between the collimation corrected GRB energy and the peak of the gamma-ray spectrum has opened the possibility…

天体物理学 · 物理学 2009-11-10 C. Firmani , G. Ghisellini , G. Ghirlanda , V. Avila-Reese

This article gives an overview of gamma-ray bursts (GRBs) and their relation to astroparticle physics and cosmology. GRBs are the most powerful explosions in the universe that occur roughly once per day and are characterized by flashes of…

高能天体物理现象 · 物理学 2019-02-27 Jakub Ripa

Gamma-ray bursts (GRBs) are the most luminous explosions and can be detectable out to the edge of Universe. It has long been thought they can extend the Hubble diagram to very high redshifts. Several correlations between temporal or…

高能天体物理现象 · 物理学 2022-01-26 F. Y. Wang , J. P. Hu , G. Q. Zhang , Z. G. Dai

We review models of cosmological gamma-ray bursts (GRBs). The statistical and $\gamma$-ray transparency issues are summarized. Neutron-star and black-hole merger scenarios are described and estimates of merger rates are summarized. We…

天体物理学 · 物理学 2009-10-28 Charles D. Dermer , Thomas J. Weiler

Gamma-ray bursts (GRBs) are extremely energetic events at cosmological distances. They provide unique laboratory to investigate fundamental physical processes under extreme conditions. Due to extreme luminosities, GRBs are detectable at…

高能天体物理现象 · 物理学 2016-12-21 Poonam Chandra

The accurate localization of gamma-ray bursts remains a crucial task. While historically, improved localization have led to the discovery of afterglow emission and the realization of their cosmological distribution via redshift…

天体物理仪器与方法 · 物理学 2022-08-24 J. Greiner , U. Hugentobler , J. M. Burgess , F. Berlato , M. Rott , A. Tsvetkova

Gamma-ray bursts (GRBs) are luminous enough to be detectable up to redshift $z\sim 10$. They are often proposed as complementary tools to type-Ia supernovae (SNe Ia) in tracing the Hubble diagram of the Universe. The distance calibrations…

广义相对论与量子宇宙学 · 物理学 2015-11-30 Hai-Nan Lin , Xin Li , Zhe Chang

Joint gravitational-wave (GW) and $\gamma$-ray burst (GRB) observations are among the best prospects for standard siren cosmology. However, the strong selection effect for the coincident GRB detection, which is possible only for sources…

高能天体物理现象 · 物理学 2024-12-12 Michele Mancarella , Francesco Iacovelli , Stefano Foffa , Niccolò Muttoni , Michele Maggiore

In order to obtain an overview of the gamma-ray bursts (GRBs), we need a full sample. In this paper, we collected 6289 GRBs (from GRB 910421 to GRB 160509A) from the literature, including prompt emission, afterglow and host galaxy…

高能天体物理现象 · 物理学 2020-05-13 Feifei Wang , Yuan-Chuan Zou , Fuxiang Liu , Bin Liao , Yu Liu , Yating Chai , Lei Xia

Gamma-ray bursts (GRBs) are the most luminous astrophysical events observed so far. They are conventionally classified into long and short ones depending on their time duration, $T_{90}$. Because of the advantage their high redshifts offer,…

宇宙学与河外天体物理 · 物理学 2014-11-20 Shi Qi , Tan Lu