Sentences with phrase «as gamma ray bursts»

As early as 2021 it will be joined by the Einstein Probe, a wide - field x-ray sentinel for transient phenomena such as gamma ray bursts and the titanic collisions of neutron stars or black holes that generate gravitational waves.

Not exact matches

A cataclysmic natural disaster, such as a huge asteroid impact or gamma ray burst, could obliterate the planet.

This so - called gamma - ray burst, now known officially as GRB 990123, was one of the most energetic and the most closely observed ever.

Their analysis has revealed key details about the initial «prompt» phase of gamma - ray bursts and the evolution of the large jets of matter and energy that form as a result.

The event, named GRB160625B, revealed key details about the initial «prompt» phase of gamma - ray bursts and the evolution of the large jets of matter and energy that form as a result of the burst.

MYSTERIOUS gamma ray bursts that occur in the first moments of a storm, as lightning jumps between clouds, hint at where lightning comes from.

Penn State University astronomers have discovered that the mysterious «cosmic whistles» known as fast radio bursts can pack a serious punch, in some cases releasing a billion times more energy in gamma - rays than they do in radio waves and rivaling the stellar cataclysms known as supernovae in their explosive power.

Discovery of the gamma - ray «bang» from FRB 131104, the first non-radio counterpart to any FRB, was made possible by NASA's Earth - orbiting Swift satellite, which was observing the exact part of the sky where FRB 131104 occurred as the burst was detected by the Parkes Observatory radio telescope in Parkes, Australia.

The flashes are known as gamma - ray bursts because most of their energy is in the form of high - energy radiation, including gamma rays and X-rays.

Long gamma - ray bursts, which flash for up to 100 seconds or longer, are believed to occur when massive stars explode as supernovae.

«Previously, as anticipated, gamma ray detectors had observed bursts of gamma rays such as were expected from neutron star mergers.

«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.

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If that jet is aimed directly at Earth, telescopes can see it as an ephemeral flash of light called a short gamma - ray burst, or GRB.

An unexpected opportunity to test this model came on June 3 when NASA's Swift Space Telescope picked up the extremely bright gamma - ray burst, cataloged as GRB 130603B, in a galaxy located almost 4 billion light - years away.

Two years ago, nasa's Marshall Space Flight Center in Huntsville, Alabama, hosted a conference on the astronomical phenomenon known as gamma - ray bursts.

They could have emerged from gamma - ray bursts, mysterious and short - lived cataclysms that briefly rank as the brightest objects in the universe; shock waves from exploding stars; or so - called blazars, jets of energy powered by supermassive black holes.

Combined with the fact that bursts seem to evolve from energetic gamma rays to X-rays to visible light, which means they cool off over time, the radio data supported the idea that they are huge fireballs, expanding at near - light - speed and cooling as they go.

In the span of a fraction of a second to a few minutes, gamma - ray bursts spew out 1020 times as much energy as the sun.

Gamma - ray bursts (GRBs) are the most luminous events in the universe, releasing as much energy in a few seconds as the Sun does over its 10 billion year lifetime.

The Compton Gamma Ray Observatory (CGRO), designed to detect gamma rays from distant astrophysical objects such as neutron stars and supernova remnants, had also begun recording bright, millisecond - long bursts of gamma rays coming not from outer space but from Earth bGamma Ray Observatory (CGRO), designed to detect gamma rays from distant astrophysical objects such as neutron stars and supernova remnants, had also begun recording bright, millisecond - long bursts of gamma rays coming not from outer space but from Earth bgamma rays from distant astrophysical objects such as neutron stars and supernova remnants, had also begun recording bright, millisecond - long bursts of gamma rays coming not from outer space but from Earth bgamma rays coming not from outer space but from Earth below.

«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.

These gamma - ray bursts, astrophysicists recently learned, originate in distant galaxies and are unfathomably powerful — as much as 10 quadrillion (a one followed by 16 zeros) times as energetic as the sun.

BeppoSAX should continue to analyze gamma ray bursts (such as the one above) and other x-ray sources for another year.

«Ironically, the project MASTER, initially intended for observing fast happening phenomena, such as for example the consequences of the Gamma - ray bursts and star flashes, discovered an unprecedented variability of a totally different scale,» comments Denis Denisenko.

But as she read excited messages from colleagues that a gamma ray burst had also been detected, «I realized this was a breakthrough event,» says Troja, an associate research scientist at the University of Maryland in College Park who works at NASA's Goddard Space Flight Center in Greenbelt in Maryland.

«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 Caltech Center for Advanced Computing Research's VOEventNet project, which created a virtual observatory by linking a number of telescopes, introduced a software program this week that works with Sky, allowing users to post and view images and video of transient phenomena such as exploding and colliding stars, gamma - ray bursts, and supernovae within minutes of their detection.

Researchers refer to such a burst as a terrestrial gamma ray flash.

The explosion was officially designated GRB 090423, after its type (a gamma - ray burst) and date of detection; the space agency quickly announced it as the new record holder for cosmic distance.

It packed as much energy in its mere 5 - millisecond duration as the sun puts out in a month, making it by far the strongest, quickest signal radio astronomers have observed, although it wasn't nearly as powerful as the elusive gamma ray bursts that populate the universe.

The powerful blasts of particles and light energy known as gamma - ray bursts come from violent cosmic events in deep space, such as stellar explosions and black hole collisions.

Over the past few years, terrestrial telescopes such as the Major Atmospheric Gamma - ray Imaging Cherenkov Telescope (MAGIC) in the Canary Islands and the High Energy Stereoscopic System (HESS) in Namibia have seen low - energy photons from a gamma - ray burst (GRB) arriving before their high - energy counterpGamma - ray Imaging Cherenkov Telescope (MAGIC) in the Canary Islands and the High Energy Stereoscopic System (HESS) in Namibia have seen low - energy photons from a gamma - ray burst (GRB) arriving before their high - energy counterpgamma - ray burst (GRB) arriving before their high - energy counterparts.

In rare cases, black hole births are even more spectacular, with the star firing out powerful jets of high - energy radiation as it dies — a phenomenon known as a gamma - ray burst.

Minutes after the initial fireworks, some gamma - ray bursts flare up again in x-rays, as depicted in this artist's rendering.

Three potential events were considered as part of their research, including; large asteroid impact, and exploding stars in the form of supernovae or gamma ray bursts.

The 2 May x-ray flare, occurring 12 minutes after the burst, carried almost as much energy as the original gamma - ray explosion — «something never before seen and quite unexpected,» according to a paper by David Burrows of Pennsylvania State University in University Park and colleagues published online today by Science.

Indeed, to shove aside such vast volumes of gas, the jets have churned out as much energy as nearly a billion gamma - ray bursts — the most powerful instantaneous explosions known.

These highly energetic bursts of hard radiation have been seen by gamma - ray satellites such as Fermi and Swift, but the exact origin of these quickly disappearing flashes of gamma - rays remains unknown.

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.

The two scientists said the instrument on INTEGRAL that would have potentially spotted the gamma - ray burst was not built primarily as a gamma - ray burst detector.

The new observations support the theory that gamma - ray bursts result from the explosion of massive stars known as hypernovae.

This is about a hundred times as much energy as that released in the brightest supernova explosion, and is many times more than the amount needed to explain the origin of the bursts of gamma rays.

If Piran is correct, the characteristic signature of such an event should be a burst of gravitational waves that ends just as a burst of gamma rays arrives from the same source.

Gamma ray bursts appear as a directional burst of energy from collapsed massive stars.

But if a burst originated within a couple of thousand light years of the Earth, it would expose the atmosphere to as many gamma rays as the detonation of all the planet's nuclear weapons.

A collimated «jet,» whose composition is poorly known, is launched from the system and travels toward Earth with a speed greater than 0.99995 speed of light, which is observed as a burst of gamma - rays.

The most important discovery in astronomy in 2017 was the groundbreaking discovery of a gravitational wave event GW170817 due to the merger of two neutron stars as well as its associated short GRB (gamma ray burst) 170817A and other electromagnetic counterpart emissions in multi-wavelength.

Rees is a cosmologist and space scientist whose research interests include galaxy formation, active galactic nuclei, black holes, gamma - ray bursts, as well as speculative aspects of cosmology such as the multiverse.

VLT observations have shed new light on the mysterious cosmic explosions known as gamma - ray bursts, which are the most powerful blasts in the universe.