Table of Contents
Why do gamma rays occur in bursts?
Scientists now know that the vast majority of gamma-ray bursts are “long bursts”longer than 2 seconds. They are thought to occur when a massive star runs out of fuel. Without a force to resist the crush of its own gravity, the core of the star collapses into a black hole.
What do the observed locations of gamma ray bursts tell us about them?
What do the observed locations of gamma-ray bursts tell us about them? They must be extra-galactic because they occur everywhere in the sky. more than 25 times the mass of the Sun. At what stage of its life will our Sun become a black hole?
What are gamma ray bursts and how do we think they are produced quizlet?
Gamma-ray bursts are emissions of gamma ray from other galaxies. We think they are produced by supernovae that produces a black hole (also sometimes called a hypernovae) in another galaxy. The other way they can be produced is if a binary system collision happens.
Which of the following would be the strongest source of gravitational waves?
The strongest gravitational waves are produced by cataclysmic events such as colliding black holes, supernovae (massive stars exploding at the end of their lifetimes), and colliding neutron stars.
What causes a gamma-ray burst?
A few leading theories were developed that addressed the possible causes of gamma-ray bursts. One explanation proposed that they are the result of colliding neutron stars. Neutron stars are the corpses of massive stars (5 to 10 times the mass of our Sun) that have come to the ends of their life cycles.
What is the most powerful gamma ray ever observed?
In November 2019, astronomers reported a notable gamma ray burst explosion, named GRB 190114C, initially detected in January 2019, which, so far, produced gamma-rays with the highest energy – about 1 Tera electron volts (Tev) – ever observed for such a cosmic event.
What is the distribution of gamma-ray bursts detected by BATSE?
Positions on the sky of all gamma-ray bursts detected during the BATSE mission. The distribution is isotropic, with no concentration towards the plane of the Milky Way, which runs horizontally through the center of the image.
What is a gamma-ray flash?
At least once a day, the sky lights up with a spectacular flash of gamma-rays coming from deep space (remember: gamma-rays are not in the visible range of the electromagnetic spectrum so we consequently are not aware of the phenomena). The brightness of this flash of gamma-rays can temporarily overwhelm all other gamma-ray sources in the Universe.