gamma-ray bursts
The nature of “dark” gamma-ray bursts
... Long-duration gamma-ray bursts (GRBs) are the high-energy signatures of the death of some massive stars, and they emit the bulk of their radiation in the ≈300–800keV ...
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Short gamma-ray bursts: A review
... 2015 Gamma-Ray Bursts (GRBs) are rapid, bright flashes of radiation peaking in the gamma-ray band occurring at an average rate of one event per day at cosmological ...in ...
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High redshift Gamma-Ray Bursts
... Historically, the exploration of the distant Universe has been carried out following two main pathways: the observations of bright quasars detected in wide shallow surveys (Fan, 2012), and of distant galaxies identified ...
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The nature of “dark” gamma-ray bursts
... Long-duration gamma-ray bursts (GRBs) are the high-energy signatures of the death of some massive stars, and they emit the bulk of their radiation in the ≈300–800keV ...
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Peak Energy Correlations for Gamma Ray Bursts
... Gamma-ray bursts (GRBs) are the most powerful explosions in the universe. Over the past two decades, several GRB energy and luminosity correlations were discovered. These correlations typically ...
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The environments of the most energetic Gamma Ray bursts
... The Environments of the Most Energetic Gamma-Ray Bursts densities as sparse as the IGM, or unnaturally high Lorentz factors. Finally, we find that those GRBs with the most precise measurements of ...
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CiteSeerX — Central engines for gamma-ray bursts
... † Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA Abstract. Leading models for the “central engine” of long, soft gamma-ray bursts (GRBs) are briefly reviewed with emphasis on ...
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Close binary progenitors of gamma-ray bursts
... long-duration gamma-ray bursts (LGRBs) with duration in excess of 100 s as well as the precursors separated from the main gamma-ray pulse by few hundreds of ...their ...
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Toward an Understanding of the Progenitors of Gamma Ray Bursts
... explain gamma-ray bursts are the coalescence of two compact objects such as neutron stars or black holes, or the catastrophic collapse of a massive star in a very energetic supernova-like explosion ...
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On the Origin of the Highest Redshift Gamma-Ray Bursts
... long bursts, resulting from the deaths of massive stars (collapsars) from Population II ...090423, gamma-ray bursts have entered a unique high- redshift ...
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Models for Gamma-Ray Bursts and Diverse Transients
... “gamma-ray bursts” (GRBs) has been increasing, and the natural inclination is a proliferation of ...energy bursts and find a lower limit, ∼10 48 erg s − 1 to the power required for a jet to ...
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Compton Echoes from $\gamma$-ray Bursts
... of gamma-ray bursts (GRBs) have provided growing evidence for collimated outflows and emission, and strengthened the connection between GRBs and ...
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Emissão polarizada em Gamma-Ray Bursts
... [42] Schulze S., Malesani D., Cucchiara A., Tanvir N. R., Kruhler T., de Ugarte Postigo A., Leloudas G., Lyman J., Bersier D., Wiersema K., Perley D. A., Schady P., Gorosabel J., Anderson J. P., Castro-Tirado A. J., ...
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X-ray flares and the duration of engine activity in gamma-ray bursts
... JILA, University of Colorado, Boulder, CO 80309-0440, USA e-mail: [email protected], [email protected] 1 December 2006 ABSTRACT The detection of bright X-ray flares superimposed on the regular ...
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The luminosity function of Swift long gamma-ray bursts
... The accumulation of Swift observed gamma-ray bursts GRBs has gradually made it possible to directly derive a GRB luminosity function LF from the observational luminosity distribution.. H[r] ...
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Magnetic Fields in Gamma-Ray Bursts: A Short Overview
... Abstract. Magnetic fields play a crucial role in the physics of Gamma-Ray Bursts (GRBs). Strong observational evidence indicates that the observed afterglow and most likely the prompt emission arise ...
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Are Swift gamma-ray bursts consistent with the Ghirlanda relation?
... of gamma–ray bursts (GRBs), namely the spectral peak energy, the total radiated energy, and the afterglow break time, have been discovered with pre-Swift ...Swift bursts to the Ghirlanda and ...
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A Survey of the Host Galaxies of Gamma-Ray Bursts 1
... Abstract. We used 45 HST/STIS orbits in Cycle 9 to obtain deep images of the host galaxies of eleven gamma-ray bursts. Our goals are to study the morphologies of the host galaxies, to obtain precise ...
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Photospheric Emission in Fermi GBM Gamma Ray Bursts
... brightest gamma-ray bursts observed by the Gamma ray Burst Monitor (GBM) on Fermi up to September 2011, where the prompt spectra show evidence for photospheric ...
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Gamma-ray bursts and magnetars: Observational signatures and predictions
... Keywords: Gamma-ray bursts: general Magnetars Newly-born millisecond magnetars are competing with black holes as source of the gamma-ray burst (GRB) power, mainly with their rotational ...
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