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While Gamma Ray Bursts (GRBs) have the potential to shed light on the astrophysics of jets, compact objects, and cosmology, a major set back in their use as probes of these phenomena stems from our incomplete knowledge surrounding their…

高能天体物理现象 · 物理学 2024-08-12 Tyler Parsotan , Davide Lazzati

Since the discovery of Gamma-Ray Bursts (GRBs), attempts have been made to detect correlated optical transient emission from these objects. In January 1999, the ROTSE I robotic telescope detected a bright optical flash simultaneous with a…

天体物理学 · 物理学 2007-05-23 Eliana Palazzi , Elena Pian

The GECAM mission consists of two identical microsatellites (GECAM-A and GECAM-B). Each satellite is equipped with 25 gamma-ray detectors (GRD) and 8 charged particle detectors (CPD). The main scientific objective of the GECAM mission is to…

GRETA, the Gamma-Ray Energy Tracking Array, is an array of highly-segmented HPGe detectors designed to track gamma-rays emitted in beam-physics experiments. Its high detection efficiency and state-of-the-art position resolution enable it to…

仪器与探测器 · 物理学 2021-07-05 Robert Crabbs , I-Yang Lee , Kai Vetter

The response of the X and Gamma Imaging Spectrometer (XGIS) instrument onboard the Transient High Energy Sky and Early Universe Surveyor (THESEUS) mission, selected by ESA for an assessment phase in the framework of the Cosmic Vision M5…

The gamma-ray burst (GRB) rate is essential for revealing the connection between GRBs, supernovae and stellar evolution. Additionally, the GRB rate at high redshift provides a strong probe of star formation history in the early universe.…

高能天体物理现象 · 物理学 2016-03-25 Amy Lien , Takanori Sakamoto , Neil Gehrels , David M. Palmer , Scott D. Barthelmy , Carlo Graziani , John K. Cannizzo

Despite not being specifically designed for the study of gamma-ray bursts (GRBs), the INTEGRAL satellite is giving a relevant contribution to this field with the detection of about 10 GRB per year in the IBIS field of view. The ground-based…

高能天体物理现象 · 物理学 2011-02-21 Sandro Mereghetti

Gamma-ray Transient Monitor (GTM) is an all-sky monitor onboard the Distant Retrograde Orbit-A (DRO-A) satellite with the scientific objective of detecting gamma-ray transients ranging from 20 keV to 1 MeV. GTM is equipped with 5 Gamma-ray…

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

One of the scientific objectives of NASA's Fermi Gamma-ray Space Telescope is the study of Gamma-Ray Bursts (GRBs). The Fermi Gamma-Ray Burst Monitor (GBM) was designed to detect and localize bursts for the Fermi mission. By means of an…

The gravitational wave detectors currently in operation perform the analysis of their scientific data jointly. Concerning the search for bursting sources, coherent data analysis methods have been shown to be more efficient. In the coherent…

广义相对论与量子宇宙学 · 物理学 2009-06-01 Olivier Rabaste , Eric Chassande-Mottin , Archana Pai

The Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) , composed of two small satellites, is a new mission to monitor the Gamma-Ray Bursts (GRBs) coincident with Gravitational Wave (GW) events with a FOV of…

仪器与探测器 · 物理学 2021-12-22 Da-Li Zhang , Xin-Qiao Li , Shao-Lin Xiong , Wen-xi Peng , Fan-Zhang , Yanguo-Li , Zheng-Hua An , Yan-Bing Xu , Xi-Lei Sun , Yue Zhu

We expect that at least one Gamma-Ray Burst per month will be detected in the field of view of INTEGRAL instruments and localized with an accuracy of a few arcminutes. IBIS (the Imager on board INTEGRAL) will be the most sensitive…

天体物理学 · 物理学 2007-05-23 D. Gotz , S. Mereghetti

A systematic search for cosmic gamma-ray bursts (GRBs) and other short hard X-ray events in the archival data from the IBIS/ISGRI telescope of the INTEGRAL observatory over 2003-2018 has been carried out. Seven previously unknown GRBs have…

高能天体物理现象 · 物理学 2020-05-26 I. V. Chelovekov , S. A. Grebenev , A. S. Pozanenko , P. Yu. Minaev

Intense and complex instrumental backgrounds, against which the much smaller signals from celestial sources have to be discerned, are a notorious problem for low and intermediate energy gamma-ray astronomy (~50 keV - 10 MeV). Therefore a…

天体物理学 · 物理学 2009-11-10 G. Weidenspointner , M. J. Harris , S. Sturner , B. J. Teegarden , C. Ferguson

Properties of response functions of room temperature gamma-radiation detectors based on wide band-gap semiconductors are researched using Monte-Carlo method. It is shown that approximate formulas which connect detector sensitivity with…

仪器与探测器 · 物理学 2012-07-24 Alexandr A. Zakharchenko

The Swift Gamma-Ray Explorer is designed to make prompt multiwavelength observations of Gamma-Ray Bursts (GRBs) and GRB afterglows. The X-ray Telescope (XRT) enables Swift to determine GRB positions with a few arcseconds accuracy within 100…

The XGIS (X and Gamma Imaging Spectrometer) is one of the three instruments onboard the THESEUS mission (ESA M5, currently in Phase-A). Thanks to its wide field of view and good imaging capabilities, it will efficiently detect and localize…

The primary scientific goal of the GRIPS mission is to revolutionize our understanding of the early universe using gamma-ray bursts. We propose a new generation gamma-ray observatory capable of unprecedented spectroscopy over a wide range…

天体物理学 · 物理学 2009-11-13 J. Greiner

Gamma-ray bursts (GRBs) have been detected up to GeV energies and are predicted by many models to emit in the very high energy (VHE, > 100 GeV) regime too. Detection of such emission would allow us to constrain GRB models. Since its launch,…

天体物理学 · 物理学 2007-10-15 Milagro Collaboration , P. M. Saz Parkinson , B. L. Dingus