Sentences with phrase «produced gamma ray bursts»

He has now been able to prove for the first time, some of the key phenomena that play a major role in producing gamma ray bursts.

Neutron star mergers like this produce gamma ray bursts — beams of radiation that can destroy planets or make them inhospitable to life.

Not exact matches

Dr Sarri explains: «We thought that the best way to work out how gamma ray bursts are produced would be to mimic them in small - scale reproductions in the laboratory — reproducing a little source of these beams and look at how they evolve when left on their own.

Some astrophysicists believe that dark matter particles may occasionally annihilate each other, producing bursts of high - energy gamma rays.

«Our theories predicted that neutron star binaries, which would inevitably merge as they emit gravitational waves, would produce a short and distinctive burst of gamma rays at the moment of their merger,» Mészáros said.

But the gamma - ray signals produced by the August collision were 10,000 times less bright than those seen in other detected short gamma - ray bursts.

A fortuitous intervention by a star may have given scientists their first proof that gamma ray bursts produce fiery rings expanding into the universe.

«Many astronomers, including our group, have already provided a great deal of evidence that long - duration gamma - ray bursts (those lasting more than two seconds) are produced by the collapse of extremely massive stars.

The definitive evidence came from Hubble observations in near - infrared light of the fading fireball produced in the aftermath of a short gamma - ray burst (GRB).

In the image at left, the galaxy in the center produced the gamma - ray burst, designated GRB 130603B.

«It could be created by a superluminous supernova or a long gamma ray burst, and then later on, as it evolves and its rotation slows down a bit, it produces these fast radio bursts as well as continuous radio emission powered by that spindown.

«High - energy neutrinos are produced along with gamma rays by extremely high - energy radiation known as cosmic rays in objects like star - forming galaxies, galaxy clusters, supermassive black holes, or gamma - ray bursts.

The observations supported a 25 - year - old conjecture that neutron star mergers produce short gamma - ray bursts, and confirmed that gravitational waves travel at the same speed of light, ruling out some speculative alternatives to Einstein's theory of gravity and general relativity.

Dark lightning is a burst of gamma rays produced during thunderstorms by extremely fast moving electrons colliding with air molecules.

This would make a weak black hole flare up, producing a burst of gamma rays that in turn spits out cosmic rays, suggests Farrar (arxiv.org/abs/1207.3186v1).

Ray Jayawardhana: It is a clue that most likely, these high energy neutrinos come either from jets of particles that are accelerated by super massive black holes at the hearts of galaxies, or from really gigantic stars that explode at the end of their lives that also produce a phenomenon we call gamma ray bursts, which also might accelerate particles to very high speeds and energies.

Eventually they collide and produce the short gamma - ray burst.

Dr Pannarale added: «A possible scenario that could produce gamma - ray bursts involves a neutron star, the most compact star in the Universe, being ripped apart by a black hole while orbiting it.

«We know that when a gamma - ray burst explodes, it produces a blast of material called a fireball, which expands at relativistic speeds like a rapidly inflating bubble,» Piro explains.

In the days and weeks following the September LIGO announcement, a handful of papers appeared on the open - access science paper website arXiv.org, throwing out possible physical scenarios in which two midsize colliding black holes could produce a gamma - ray burst.

Future missions such as the Joint Astrophysics Nascent Universe Satellite — a small explorer mission being considered by NASA — could give astronomers their first look at gamma - ray bursts produced by these first - generation stellar objects.

«Amazingly, even though the sky is known to be full of transient objects emitting at X - and gamma - ray wavelengths,» NRL astronomer Dr. Joseph Lazio pointed out, «very little has been done to look for radio bursts, which are often easier for astronomical objects to produce.»

Such a rare event is expected to produce both gravitational waves and a short gamma - ray burst, both of which were observed on 17 August 2017 by LIGO — Virgo.

Here's the deal with gamma - ray bursts: When a huge star collapses, it produces a boatload of radiation in concentrated streams.

New observations confirm that colliding neutron stars produce short gamma - ray bursts.