Results 51 to 60 of about 58,726 (292)

Cosmology with gamma-ray bursts

open access: yesAstronomical and Astrophysical Transactions, 2022
Gamma-ray bursts constitute one of the most fascinating and relevant phenomena in modern science, with strong implications for several fields of astrophysics, cosmology and fundamental physics. In this short review, I focus on the prospective key-role of GRBs for cosmology. Indeed, the huge luminosity, the redshift distribution extending at least up
openaire   +2 more sources

Repeating Emission Episodes in Gamma-Ray Bursts: Millilensing or Jet Precession?

open access: yesThe Astrophysical Journal, 2023
Recently, some gamma-ray bursts (GRBs) whose light curves consist of repeating emission episodes with similar temporal profiles have attracted extensive attention.
He Gao   +3 more
doaj   +1 more source

Supernovae and Gamma-ray Bursts [PDF]

open access: yesProceedings of the International Astronomical Union, 2011
AbstractThe properties of the Supernovae discovered in coincidence with long-duration Gamma-ray Bursts and X-Ray Flashes are reviewed, and compared to those of SNe for which GRBs are not observed. The SNe associated with GRBs are of Type Ic, they are brighter than the norm, and show very broad absorption lines in their spectra, indicative of high ...
openaire   +2 more sources

Energetics of Gamma‐Ray Bursts [PDF]

open access: yesThe Astrophysical Journal, 2001
Submitted to ...
Jimenez, Raul, Band, David, Piran, Tsvi
openaire   +2 more sources

Anisotropy in the sky distributions of the short and intermediate gamma-ray bursts: Breakdown of the cosmological principle? [PDF]

open access: yes, 2009
After the discovery of the anisotropy in the sky-distribution of intermediate gamma-ray bursts recently also the distribution of the short gamma-ray bursts is proven to be anisotropic.
A. Meszaros   +6 more
core   +2 more sources

A Short History of the First 50 Years: From the GRB Prompt Emission and Afterglow Discoveries to the Multimessenger Era

open access: yesUniverse
More than fifty years have elapsed from the first discovery of gamma-ray bursts (GRBs) with American Vela satellites, and more than twenty-five years from the discovery with the BeppoSAX satellite of the first X-ray afterglow of a GRB.
Filippo Frontera
doaj   +1 more source

Low-Energy Spectral Features in GRBs [PDF]

open access: yes, 1996
I discuss low-energy lines in gamma-ray bursts. The process of deconvolving gamma-ray spectral data and the steps needed to demonstrate the existence of a line are explained.
Briggs, Michael S.
core   +2 more sources

Gamma-ray bursts and bursters [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2000
Invited talk at the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, Paris, Dec. 1998. To appear in Nuclear Phys. B, (Proceedings Supplements), Elsevier Science; latex file, 15 pages, 6 figures, uses espcrc2.sty, included; minor ...
openaire   +2 more sources

Black hole neutron star coalescence as a source of gamma-ray bursts [PDF]

open access: yes, 1997
We present the results of hydrodynamic (SPH) simulations showing the coalescence of a black hole with a neutron star to be a promising theoretical source of short duration gamma-ray bursts.
Kluzniak, W., Lee, W. H.
core   +2 more sources

Spectral Hardness and Evolution of Swift Gamma-Ray Bursts and X-Ray Afterglows

open access: yesThe Astrophysical Journal, 2023
Spectral hardness of gamma-ray bursts can be characterized by either hardness ratio or peak energy, and the inconsistency of these parameters can reflect spectral diversity and complexity.
X. Y. Du   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy