Sentences with phrase «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.

That's the conclusion of a group of physicists who studied the effects of massive cosmic explosions, called gamma ray bursts, on planets.

A satellite dedicated to hunting gamma ray bursts, the most powerful explosions in space, has turned on with a bang.

Researchers encountered the structure while mapping high - energy gamma ray bursts, which are caused by exploding massive stars.

Just two seconds after LIGO's detection, scientists had already snagged another piece of the puzzle: a satellite flagged a giant short gamma ray burst of high - energy light, «a firehouse of material,» as Fong describes it.

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.

Extremely bright exploding stars, called superluminous supernovae, and long gamma ray bursts also occur in this type of galaxy, he noted, and both are hypothesized to be associated with massive, highly magnetic and rapidly rotating neutron stars called magnetars.

Two seconds after detection of the gravitational wave, the Gamma Ray Burst monitor on NASA's Fermi spacecraft detected a short gamma ray burst in the area of the gravitational wave's origin.

The matter - antimatter frenzy also may shed light on the dynamics of energy beams from gamma ray bursts and active galaxies.

A team of astronomers using a pair of National Science Foundation radio telescopes has made the first measurements of the size and expansion of a mysterious, intense fireball resulting from a cosmic gamma ray burst last May.

They then measured how changing the cosmological constant affected the universe's density, paying particular attention to what that meant about gamma ray bursts raining down radiation on stars and planets.

A team of astronomers using a pair of National Science Foundation (NSF) radio telescopes has made the first measurements of the size and expansion of a mysterious, intense «fireball» resulting from a cosmic gamma ray burst last May.

Automated systems will also be needed to spot fast - changing objects in the sky and alert other telescopes to home in on them quickly for more detailed study, similar to the existing system for studying gamma ray bursts.

Related sites Abstract of Butler et al. paper, with link to full text Chandra X-ray Observatory Primer on gamma ray bursts

Fryer's computational astrophysics work involving the largest explosions in the universe has impacted some of the most important open questions in astrophysics, including the origin of the elements, the nature and evolution of the first stars, the gravitational wave signals from compact binary systems, and the mechanism responsible for gamma ray bursts.

Stellar mass black holes formed in powerful gamma ray bursts in the early Universe....

As bright as 10 million galaxies, a long - duration gamma ray burst named GRB 080319B was visible to the naked eye this past March even though it was a staggering 7.5 billion light - years away.

A massive gamma ray burst witnessed by scientists around the globe is thought to be the biggest explosion ever recorded.

Previously, scientists thought gamma ray bursts only formed from spiraling matter falling into black holes.

A sudden gamma ray burst o a giant meteor could wipe it all like it never existed in the first place.

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.

The researchers made use of the Gemini laser, the most intense laser on Earth, to create the mini gamma ray burst.

«Scientist unlocks gamma ray burst secrets.»

«During the experiment, we were able to confirm that the current models used to understand gamma ray bursts are on the right track, predicting the right mechanisms for the magnetic field generation and gamma - ray emission.

Unlike the more familiar gamma ray bursts, which are flashes measured in seconds, the objects Pavlidou studies are stable emitters.

Some x-ray observations have hinted that space near gamma ray bursts contains heavy elements produced by earlier supernovas (ScienceNOW, 3 April 2002).

This 4.1 - meter telescope in Chile first spied the fireball of the farthest gamma ray burst yet seen (circled).

Seventeen of us had to design a satellite, which would realistically fulfil the mission objectives to observe gamma ray bursts.

Like the flashbulbs of paparazzi, gamma ray bursts pop off all the time in the universe; about one a day but their origin remains elusive.

«Since gamma ray bursts are usually so well behaved, this really stood out,» says radio astronomer Dale Frail of the National Radio Astronomy Observatory in Soccorro, New Mexico.

Related sites Gamma ray burst afterglows Optical Observations of GRBs An explanation of microlensing Joining the GRB Network as an amateur

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

But last year, Østgaard and his colleagues discovered the previously unknown gamma ray burst while reprocessing the satellite data.

But astronomers may have pulled off an equally challenging feat: detecting the glimmer of a supernova explosion in the fading afterglow of a titanic gamma ray burst (GRB)-- one of the biggest type of explosions in all the cosmos.

Jimenez says the next step is to investigate whether gamma ray bursts are really as devastating to life as scientists believe.

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.

A brief brightening in the afterglow of GRB 011121 (arrow) supports a link between gamma ray bursts and supernovas.

The origin and cause of astrophysical neutrinos are unknown, though gamma ray bursts, active galactic nuclei and black holes are potential sources.

A hike in the kilonova's energy would also point to the collision leaving behind a neutron star, whereas a black hole is expected to cause a single gamma ray burst.

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

BeppoSAX is an Italian - Dutch satellite, launched late last year, that detects gamma ray bursts and provides precise sky positions to allow ground - based telescopes to observe them.

Players in livelock must work together to break an endless war between rival factions of machines, following a catastrophic gamma ray burst that wipes humanity out.

His main current research interests are high energy astrophysics, especially gamma ray bursts, galactic nuclei, black hole formation and radiative processes (including gravitational waves) and cosmic structure formation, especially the early generation of stars and galaxies that formed at high redshifts at the end of the cosmic «dark age».

From brief glimpses throughout the past decade, astronomers have pieced together a standard theory of gamma ray bursts.

The merging neutron stars powered a seconds - long gamma ray burst that beamed radiation into space.

Observations of supernova SN2003jd suggest a strongly aspherical explosion that could have produced gamma ray bursts.