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It has been observationally established that supernovae (SNe) of Type Ic produce long duration gamma ray bursts (GRBs) and that neutron star mergers generate short hard GRBs. SN-Less GRBs presumably originate in a phase transition of a…

高能天体物理现象 · 物理学 2022-07-06 Shlomo Dado , Arnon Dar , A. De Rújula

Gamma-ray bursts (GRBs) are extremely powerful explosions that have been traditionally classified into two categories: long bursts (LGRBs) with an observed duration T90 > 2 s, and short bursts (SGRBs) with an observed duration T90 < 2 s,…

高能天体物理现象 · 物理学 2024-03-25 Ali M. Hasan , Walid J. Azzam

Long gamma-ray bursts (GRBs) are believed to be related to the explosion of type Ic supernovae, which have been stripped of their hydrogen and helium envelopes. There appear to be two types of these explosions: those which are approximately…

天体物理学 · 物理学 2009-11-10 B. Paczynski , P. Haensel

Although it has been established observationally beyond doubt that broad-line stripped envelope supernovae (SNe) of type Ic produce long duration gamma ray bursts (GRBs), that neutron star mergers produce short hard GRBs (SHBs), and that…

高能天体物理现象 · 物理学 2022-07-04 Shlomo Dado , Arnon Dar

The high-redshift star formation rate (SFR) is difficult to measure directly even by modern approaches. Long-duration gamma-ray bursts (GRBs) can be detected to the edge of the visible universe because of their high luminorsities. The…

宇宙学与河外天体物理 · 物理学 2014-11-20 F. Y. Wang , Z. G. Dai

When the afterglow fades at the site of a long-duration gamma-ray burst (LGRB), Type Ic supernovae (SN Ic) are the only type of core collapse supernova observed. Recent work found that a sample of LGRB in high-redshift galaxies had…

天体物理学 · 物理学 2009-11-13 P. L. Kelly , R. P. Kirshner , M. Pahre

The cosmic formation rate of long Gamma Ray Bursts (LGRBs) encodes the evolution, across cosmic times, of their progenitors' properties and of their environment. The LGRB formation rate and the luminosity function, with its redshift…

高能天体物理现象 · 物理学 2022-06-15 G. Ghirlanda , R. Salvaterra

Over the past few years, long-duration gamma-ray bursts (GRBs), including the subclass of X-ray flashes (XRFs), have been revealed to be a rare variety of Type Ibc supernova (SN Ibc). While all these events result from the death of massive…

天体物理学 · 物理学 2008-11-26 Alicia M. Soderberg

We compute the luminosity function (LF) and the formation rate of long gamma ray bursts (GRBs) in three different scenarios: i) GRBs follow the cosmic star formation and their LF is constant in time; ii) GRBs follow the cosmic star…

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

The exact relationship between the long gamma-ray burst (LGRB) rate and the cosmic star formation rate (CSFR) is essential for using LGRBs as cosmological probes. In this work, we collect a large sample composed of 371 Swift LGRBs with…

高能天体物理现象 · 物理学 2020-05-18 Jing-Meng Hao , Liang Cao , You-Jun Lu , Qing-Bo Chu , Jun-Hui Fan , Ye-Fei Yuan , Yu-Hai Yuan

Recent evidence appears to link gamma-ray bursts (GRBs) to star-forming regions in galaxies at cosmological distances. If short-lived massive stars are the progenitors of GRBs, the rate of events per unit cosmological volume should be an…

天体物理学 · 物理学 2008-11-26 Cristiano Porciani , Piero Madau

Long-duration gamma-ray bursts(LGRBs) are believed to be linked with the star formation. We adopt a galactic evolution model, in which the star formation process inside the virialized dark halo at given redshift can be achieved. In this…

高能天体物理现象 · 物理学 2015-05-18 J. Mao

It has been established that Gamma-Ray Bursts (GRBs) are connected to Supernovae (SNe) explosions of Type Ib/c. We intend to test whether the hypothesis of Type Ib/c SNe from different massive progenitors can reproduce the local GRB rate as…

We use the cannonball (CB) model of gamma ray bursts (GRBs) and their afterglows (AGs) to analyze the observational data on X-ray flashes (XRFs) and their AGs. We show that the observations support the CB-model interpretation that XRFs,…

天体物理学 · 物理学 2009-11-10 Shlomo Dado , Arnon Dar , Alvaro De Rujula

Gamma-ray bursts (GRBs) are the most violent explosions in the Universe and can be used to explore the properties of high-redshift universe. It is believed that the long GRBs are associated with the deaths of massive stars. So it is…

高能天体物理现象 · 物理学 2015-05-27 H. Yu , F. Y. Wang , Z. G. Dai , K. S. Cheng

We briefly introduce the disadvantages for Type Ia supernovae (SNe Ia) as standard candles to measure the Universe, and suggest Gamma-ray bursts (GRBs) can serve as a powerful tool for probing the properties of high redshift Universe. We…

高能天体物理现象 · 物理学 2017-02-15 Jun-Jie Wei , Xue-Feng Wu

By employing a simple semi-analytical star formation model where the formation rates of Population (Pop) I/II and III stars can be calculated, respectively, we account for the number distribution of gamma-ray bursts (GRBs) with high…

高能天体物理现象 · 物理学 2015-06-23 Wei-Wei Tan , Xiao-Feng Cao , Yun-Wei Yu

Long gamma-ray bursts (LGRBs) are typically thought to result from the collapse of massive stars. Nonetheless, recent observations of gamma-ray bursts (GRBs) 211211A and 230307A, coupled with the low-redshift excess of LGRB event rates…

高能天体物理现象 · 物理学 2025-05-12 Yan-Kun Qu , Zhong-Xiao Man , Zhi-Bin Zhang

It is now accepted that long duration gamma-ray bursts (GRBs) are produced during the collapse of a massive star. The standard "collapsar" model predicts that a broad-lined and luminous Type Ic core-collapse supernova (SN) accompanies every…

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