On Gamma-Ray Bursts
نویسندگان
چکیده
R. Ruffini,1,2,3 M.G. Bernardini,1,2 C.L. Bianco,1,2,3 L. Caito,1,2 P. Chardonnet,1,3,4 C. Cherubini,1,5 M.G. Dainotti,1,2 F. Fraschetti, A. Geralico,1,2 R. Guida,1,2 B. Patricelli,1,2 M. Rotondo,1,2 J.A. Rueda Hernandez,1,2 G. Vereshchagin,1,2,3 S.-S. Xue1,3 1 ICRANet and ICRA, Piazzale della Repubblica 10, I-65122 Pescara, Italy. 2 Dip. di Fisica, Università di Roma “La Sapienza”, Piazzale Aldo Moro 5, I-00185 Roma, Italy. 3 ICRANet, Université de Nice Sophia Antipolis, Grand Château, BP 2135, 28, avenue de Valrose, 06103 NICE CEDEX 2, France. 4 Université de Savoie, LAPTH LAPP, BP 110, F-74941 Annecy-le-Vieux Cedex, France. 5 Università Campus Biomedico, Facoltà di Ingegneria, Via Alvaro del Portillo 21, 00128 Rome, Italy. 6 CEA/Saclay, F-91191 Gif-sur-Yvette Cedex, Saclay, France. E-mails: [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected].
منابع مشابه
Gamma{ray bursts and their sources
Despite of more than 25 years of observational and theoretical investigations gamma{ray bursts are still an unresolved question. In this article we review the current status of observations of temporal and spectral properties of gamma{ray bursts and recent data on their spatial distribution. We discuss also the possible distance scales to gamma{ray bursts.
متن کاملCorrelations of Prompt and Afterglow Emission in Swift Long and Short Gamma Ray Bursts
Correlation studies of prompt and afterglow emissions from gamma-ray bursts (GRBs) between different spectral bands has been difficult to do in the past because few bursts had comprehensive and intercomparable afterglow measurements. In this paper1 we present a large and uniform data set for correlation analysis based on bursts detected by the Swift mission. For the first time, short and long b...
متن کاملRed-shift Distribution of Gamma-ray Bursts and Their Progenitors
Gamma ray bursts have been divided into two classes, long-soft gamma ray burst and short-hard gamma ray burst according to the bimodal distribution in duration time. Due to the harder spectrum and the lack of afterglows of short-hard bursts in optical and radio observations, different progenitors for short-hard bursts and long-soft bursts have been suggested. Based on the X-ray afterglow observ...
متن کاملDetecting gamma-ray bursts from M31 with the wide field X-ray cameras on board BeppoSAX
Gamma-ray bursters emit a small fraction of their flux in X rays, and because X-ray detectors are often very sensitive they may probe the gamma-ray burst universe more deeply than the current best gamma-ray instruments. On the reasonable assumptions that spectra of bursts observed by BATSE may be used to predict the X-ray fluxes of gamma-ray bursts, and that any corona of bursts around M31 is s...
متن کاملThe Role of the BATSE Instrument Response in Creating the GRB E-Peak Distribution
All gamma-ray bursts are observed to have approximately the same characteristic gamma-ray energy. We show in this article that for bursts in the BATSE data set, this property as measured by the E-peak value is not an instrumental effect, but a physical property of gamma-ray bursts. 1. The Characteristic Photon Energy of Bursts The prompt emission of gamma-ray bursts is observed predominately at...
متن کاملASTRONOMY AND ASTROPHYSICS Highlights of the Rome Workshop on Gamma-Ray Bursts in the Afterglow Era
I review some of the highlights of the Rome Workshop on Gamma-Ray Bursts, and discuss some of the questions these results pose about the nature and origin of gamma-ray bursts.
متن کامل