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相关论文: Reconstructing Gamma Ray Burst Energy Relations wi…

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Gamma-ray bursts (GRBs) are among the most energetic transient phenomena in the universe and serve as powerful probes for high-energy astrophysical processes. In particular, faint GRBs originating from a distant universe may provide unique…

计算机视觉与模式识别 · 计算机科学 2026-02-20 Shogo Sato , Kazuo Tanaka , Shojun Ogasawara , Kazuki Yamamoto , Kazuhiko Murasaki , Ryuichi Tanida , Jun Kataoka

We discuss the prospects of using Gamma Ray Bursts (GRBs) as high-redshift distance estimators, and consider their use in the study of two dark energy models, the Generalized Chaplygin Gas (GCG), a model for the unification of dark energy…

天体物理学 · 物理学 2007-05-23 O. Bertolami , P. T. Silva

We use the BD2 sample of gamma-ray bursts (GRBs) based on 5.9 years of BATSE DISCLA data with a variety of models of the luminosity function to derive characteristic GRB luminosities, space densities and redshift distributions. Previously…

天体物理学 · 物理学 2009-10-31 Maarten Schmidt

The lag-luminosity relation for gamma-ray bursts (GRBs) is an anti-correlation between the time lag, tau_lag, which represents the delay between the arrival of hard and soft photons, and the isotropic peak luminosity, L. In this paper, we…

高能天体物理现象 · 物理学 2012-03-30 Walid J. Azzam

The accurate spatial location of gamma-ray bursts (GRBs) is crucial for both producing a detector response matrix (DRM) and follow-up observations by other instruments. The Fermi Gamma-ray Burst Monitor (GBM) has the largest field of view…

天体物理仪器与方法 · 物理学 2016-10-25 J. Michael Burgess , Hoi-Fung Yu , Jochen Greiner , Daniel J. Mortlock

Even though the Dark Energy Spectroscopic Instrument (DESI) mission does not exclude a dynamical dark energy evolution, the concordance paradigm, i.e., the $\Lambda$CDM model, remains statistically favored, as it depends on the fewest…

宇宙学与河外天体物理 · 物理学 2024-11-08 Anna Chiara Alfano , Orlando Luongo , Marco Muccino

Gamma-ray bursts (GRBs) are traditionally classified into long (lGRBs) and short (sGRBs) durations based on their $T_{90}$, with lGRBs widely used as tracers of the cosmic star formation rate (SFR) due to their observed association with…

高能天体物理现象 · 物理学 2025-09-15 Qin-Mei Li , Qi-Bin Sun , Sheng-Bang Qian , Fu-Xing Li

We apply a machine learning algorithm, the artificial neural network, to the search for gravitational-wave signals associated with short gamma-ray bursts. The multi-dimensional samples consisting of data corresponding to the statistical and…

天体物理仪器与方法 · 物理学 2015-11-26 Kyungmin Kim , Ian W. Harry , Kari A. Hodge , Young-Min Kim , Chang-Hwan Lee , Hyun Kyu Lee , John J. Oh , Sang Hoon Oh , Edwin J. Son

Gamma-Ray Bursts (GRBs), can be employed as standardized candles, extending the distance ladder beyond Supernovae Type Ia (SNe Ia, $z=2.26$). We standardize GRBs using the 3D fundamental plane relation (the Dainotti relation) among the…

Crosscorrelation of the outputs of two Gravitational Wave (GW) detectors has recently been proposed [1] as a method for detecting statistical association between GWs and Gamma Ray Bursts (GRBs). Unfortunately, the method can be effectively…

天体物理学 · 物理学 2009-11-07 G. Modestino , A. Moleti

Gamma-ray bursts (GRBs) have emerged as powerful cosmological probes for exploring the distant Universe, owing to their immense luminosities and detectability at high redshifts. Several empirical correlations have been established,…

高能天体物理现象 · 物理学 2026-01-13 T. K. M. Aldowma , S. Razzaque , R. Martinelli , R. Gupta , F. Longo , N. Omodei , N. Di Lalla , J. L. Racusin , A. H. Airasca

After presenting a short history of gamma-ray burst (GRB) studies, we discuss the current constraints on GRB models which follows from astronomical observations. We concentrate on the energetics of the GRBs with known redshifts and the…

天体物理学 · 物理学 2007-05-23 K. A. Postnov

Gamma-ray Bursts (GRBs) are relativistic cosmological beacons of transient high energy radiation whose afterglows span the electromagnetic spectrum. Theoretical expectations of correlated neutrino and/or gravitational wave (GW) emission…

高能天体物理现象 · 物理学 2009-02-19 Michael Stamatikos , Neil Gehrels , Francis Halzen , Peter Meszaros , Peter W. A. Roming

The contribution to the cosmic diffuse gamma-ray background (CGB) from Gamma Ray Bursts (GRBs) is studied in the 40 keV - 2 MeV regime. We use High Energy Resolution (HER) data from the Burst And Transient Source Experiment (BATSE) aboard…

天体物理学 · 物理学 2009-11-06 K. Watanabe , D. H. Hartmann

The gravitational lensing effect of gamma-ray bursts (GRBs) holds significant and diverse applications in the field of astronomy. Nevertheless, the identification of millilensing events in GRBs presents substantial challenges. We…

高能天体物理现象 · 物理学 2025-09-01 Yu Zhao , Zhao-Yang Peng , Jia-Ming Chen , Yue Yin , Ting Li

We discuss several constraints on the properties of gamma-ray bursts (GRB) at cosmological distances. First we use the requirement that burst sources must be optically thin to pair production by photon-photon collisions in order to produce…

天体物理学 · 物理学 2009-10-28 Eric Woods , Abraham Loeb

Most of proposed models of cosmological gamma-ray bursts (GRBs) are associated to gravitational collapses of massive stars, and hence evolution of the GRB rate, which is crucially important in GRB intensity distribution analysis, is…

天体物理学 · 物理学 2007-05-23 Tomonori TOTANI

Gamma-ray bursts (GRBs) are the most luminous electromagnetic explosions in the Universe, which emit up to $8.8\times10^{54}$ erg isotropic equivalent energy in the hard X-ray band. The high luminosity makes them detectable out to the…

高能天体物理现象 · 物理学 2015-06-03 F. Y. Wang , Z. G. Dai , E. W. Liang

Gamma-ray bursts (GRBs), observed to redshift $z=9.4$, are potential probes of the largely unexplored $z\sim 2.7-9.4$ part of the early Universe. Thus, finding relevant relations among GRB physical properties is crucial. We find that the…

宇宙学与河外天体物理 · 物理学 2022-09-09 Shulei Cao , Maria Dainotti , Bharat Ratra

We present the constraints on the cosmological parameters obtained with the $E_{\rm peak}$--$E_{\gamma}$ correlation found with the most recent sample of 19 GRBs with spectroscopically measured redshift and well determined prompt emission…

天体物理学 · 物理学 2009-11-11 G. Ghirlanda , G. Ghisellini , C. Firmani , L. Nava , F. Tavecchio , D. Lazzati
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