Swift GRB catalog shows dipole and quadrupole signals consistent with isotropy once the instrument exposure map is included in Monte Carlo null tests.
The Supernova -- Gamma-Ray Burst Connection
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abstract
Observations show that at least some gamma-ray bursts (GRBs) happen simultaneously with core-collapse supernovae (SNe), thus linking by a common thread nature's two grandest explosions. We review here the growing evidence for and theoretical implications of this association, and conclude that most long-duration soft-spectrum GRBs are accompanied by massive stellar explosions (GRB-SNe). The kinetic energy and luminosity of well-studied GRB-SNe appear to be greater than those of ordinary SNe, but evidence exists, even in a limited sample, for considerable diversity. The existing sample also suggests that most of the energy in the explosion is contained in nonrelativistic ejecta (producing the supernova) rather than in the relativistic jets responsible for making the burst and its afterglow. Neither all SNe, nor even all SNe of Type Ibc produce GRBs. The degree of differential rotation in the collapsing iron core of massive stars when they die may be what makes the difference.
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A review of interstellar dust production, destruction, accretion, and depletion that concludes dust growth in cold clouds is critical and high-redshift dust budgets remain poorly constrained.
citing papers explorer
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Probing dipole and quadrupole anisotropy in Gamma-ray bursts from Swift dataset
Swift GRB catalog shows dipole and quadrupole signals consistent with isotropy once the instrument exposure map is included in Monte Carlo null tests.
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Interstellar dust production, destruction and effects of dust depletion in galaxies
A review of interstellar dust production, destruction, accretion, and depletion that concludes dust growth in cold clouds is critical and high-redshift dust budgets remain poorly constrained.