GRB
Noun
Meaning
GRB (plural GRBs)
(astronomy) Initialism of gamma-ray burst.
Examples
A few percent of the Type Ic supernovae are associated with gamma-ray bursts (GRB), though it is also believed that any hydrogen-stripped Type Ib or Ic supernova could produce a GRB, depending on the geometry of the explosion.
An average long GRB has a bolometric flux comparable to a bright star of our galaxy despite a distance of billions of light years (compared to a few tens of light years for most visible stars).
An optical transient event associated with this GRB has not been found, despite its intensity.
A remarkable long-duration gamma-ray burst was GRB 050525A, which flared in 2005.
Assuming the gamma-ray explosion to be spherical, the energy output of GRB 080319B would be within a factor of two of the rest-mass energy of the Sun (the energy which would be released were the Sun to be converted entirely into radiation).
Content studio and global distribution company GRB Studios has acquired two original unscripted series for international distribution.