Gamma-Ray Bursts in the Swift Era
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In this article, the authors review the rapid observational and theoretical progress in this dynamical research field during the first two-year of the Swift mission, focusing on how observational breakthroughs have revolutionized our understanding of the physical origins of GRBs.Abstract:
Since the successful launch of NASA's dedicated gamma-ray burst (GRB) mission, Swift, the study of cosmological GRBs has entered a new era. Here I review the rapid observational and theoretical progress in this dynamical research field during the first two-year of the Swift mission, focusing on how observational breakthroughs have revolutionized our understanding of the physical origins of GRBs. Besides summarizing how Swift helps to solve some pre-Swift mysteries, I also list some outstanding problems raised by the Swift observations. An outlook of GRB science in the future, especially in the GLAST era, is briefly discussed.read more
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Journal ArticleDOI
Methods and results of an automatic analysis of a complete sample of Swift-XRT observations of GRBs
Phil Evans,A. P. Beardmore,K. L. Page,J. P. Osborne,P. T. O'Brien,Richard Willingale,R. L. C. Starling,David N. Burrows,Olivier Godet,L. Vetere,Judith Racusin,M. R. Goad,Klaas Wiersema,Lorella Angelini,Milvia Capalbi,G. Chincarini,G. Chincarini,Neil Gehrels,J. A. Kennea,Raffaella Margutti,Raffaella Margutti,D. C. Morris,D. C. Morris,C. J. Mountford,C. Pagani,M. Perri,P. Romano,Nial R. Tanvir +27 more
TL;DR: A homogeneous X-rays analysis of all 318 gamma-ray bursts detected by the X-ray telescope (XRT) on the Swift satellite up to 2008 July 23 is presented; this represents the largest sample ofX-ray GRB data published to date.
Journal ArticleDOI
Dark Energy
TL;DR: A survey of theoretical models and some aspects of numerical studies for dark energy can be found in this paper, where the authors review the problem of dark energy, including a survey of the theoretical models.
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The physics of gamma-ray bursts & relativistic jets
Pawan Kumar,Bing Zhang +1 more
TL;DR: A comprehensive review of major developments in our understanding of gamma-ray bursts, with particular focus on the discoveries made within the last fifteen years when their true nature was uncovered, can be found in this paper.
Journal ArticleDOI
The Physics of Gamma-Ray Bursts and Relativistic Jets
Pawan Kumar,Bing Zhang +1 more
TL;DR: A comprehensive review of major developments in the understanding of gamma-ray bursts can be found in this article, with particular focus on the discoveries made within the last fifteen years when their true nature was uncovered.
Journal ArticleDOI
The strongest cosmic magnets: soft gamma-ray repeaters and anomalous X-ray pulsars
Abstract: Two classes of X-ray pulsars, the anomalous X-ray pulsars and the soft gamma-ray repeaters, have been recognized in the last decade as the most promising candidates for being magnetars: isolated neutron stars powered by magnetic energy. I review the observational properties of these objects, focussing on the most recent results, and their interpretation in the magnetar model. Alternative explanations, in particular those based on accretion from residual disks, are also considered. The possible relations between these sources and other classes of neutron stars and astrophysical objects are also discussed.
References
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Book
Gamma-Ray Bursts
TL;DR: In this paper, the present status of gamma-ray burst research is reviewed, with an emphasis on recent observations of their temporal, spectral, and global distribution properties, including the energy source and emission mechanism.
Proceedings ArticleDOI
Evidence for a canonical gamma-ray burst afterglow light curve in the Swift XRT data
J. A. Nousek,Chryssa Kouveliotou,Dirk Grupe,K. L. Page,Jonathan Granot,Enrico Ramirez-Ruiz,Sandeep K. Patel,David N. Burrows,Vanessa Mangano,Scott Barthelmy,A. P. Beardmore,Sergio Campana,Milvia Capalbi,G. Chincarini,Giancarlo Cusumano,A. Falcone,Neil Gehrels,Paolo Giommi,M. R. Goad,Olivier Godet,Cheryl Hurkett,J. A. Kennea,Alberto Moretti,P. T. O'Brien,J. P. Osborne,P. Romano,Gianpiero Tagliaferri,Alan A. Wells +27 more
TL;DR: In this paper, the early X-ray afterglows of the first 27 gamma-ray bursts (GRBs) well observed by the Swift X-Ray Telescope (XRT).
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Model-independent multivariable gamma-ray burst luminosity indicator and its possible cosmological implications
TL;DR: In this paper, a multivariable regression analysis is presented for a sample of 15 gamma-ray bursts (GRBs), where the observables used in the analysis include the isotropic gamma-rays energy (Eγ,iso), the peak energy of the νFν spectrum in the rest frame (E), and the rest-frame break time of the optical afterglow light curves (t).
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An optical spectrum of the afterglow of a γ-ray burst at a redshift of z = 6.295
N. Kawai,G. Kosugi,Kentaro Aoki,Toru Yamada,Tomonori Totani,Kouji Ohta,Masanori Iye,Takashi Hattori,Wako Aoki,Hisanori Furusawa,Kevin Hurley,Koji S. Kawabata,Naoki Kobayashi,Yutaka Komiyama,Yoshihiko Mizumoto,Ken'ichi Nomoto,Junichi Noumaru,Ryusuke Ogasawara,R. Sato,Kazuhiro Sekiguchi,Yuji Shirasaki,Masaya Suzuki,Tadafumi Takata,T. Tamagawa,Hiroshi Terada,Jun-ichi Watanabe,Yoichi Yatsu,A. Yoshida +27 more
TL;DR: In this paper, the authors present detailed observations of the γ-ray, X-ray and near-infrared and optical spectra of the afterglow of GRB 050904.
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Gamma-Ray Bursts as a Probe of the Very High Redshift Universe
D. Q. Lamb,Daniel E. Reichart +1 more
TL;DR: In this paper, it was shown that GRBs and their afterglows can be used as beacons to locate core collapse SNe at redshifts z > 1, and to study the properties of these SNe.
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