Sentences with phrase «high energy gamma»

Such a telescope would use large arrays of ground - based telescopes to detect blue flashes of Cerenkov radiation, which are caused by very high energy gamma - ray photons from cosmic sources smashing into the atmosphere.

, which are caused by very high energy gamma - ray photons from cosmic sources smashing into the atmosphere.

First limits on the very - high energy gamma - ray afterglow emission of a fast radio burst.

A multinational team of astronomers involving the University of Adelaide has catalogued over 70 sources of very high energy gamma rays, including 16 previously undiscovered ones, in a survey of the Milky Way using gamma ray telescopes.

So, astrophysicists developed an ingenious work - around method: measuring the EBL indirectly through measuring the attenuation of — that is, the absorption of — very high energy gamma rays from distant blazars.

In addition, HESS has detected emissions from new classes of objects emitting very high energy gamma rays, such as stellar - mass black holes orbiting massive stars, and has characterized the absence of emissions from other classes of objects such as rapidly moving stars.

HESS's results are remarkable, showing that very high energy gamma ray astronomy has reached maturity.

The HESS Galactic Plane Survey (HGPS) catalog released today, four times larger than the previous one dating from 2006, will be of great value to the entire astrophysics community, who will for the first time be able to access a very high energy gamma ray data set of this size.

«The largest catalog ever published of very high energy gamma ray sources in the galaxy.»

Discovered initially by lighthouse - like beams of radio emission, more recent research has found that energetic pulsars also produce beams of high energy gamma rays.

The highest energy gamma rays originate in the graveyards of big stars, such as the spinning pulsar remnants of supernovae.

It was also blind to the highest energy gamma rays.

Not exact matches

This includes gamma rays and X-rays from solar flares, and storms of high - energy protons.

Such cataclysms are expected to generate a high - energy flash of light, called a gamma - ray burst (yellow jets).

Those gamma rays are produced when energetic positrons and electrons slam into low - energy light particles, producing higher - energy radiation.

In fact, just before posting this Top Pictures list, a NASA press release came out saying the Fermi satellite has seen gamma rays from this object, which is another very strong piece of evidence for this; gamma rays are the very highest energy form of light, and should be made when subatomic particles bounce around in supernova shock waves.

HAWC researchers tested how positrons travel through space by measuring gamma rays, or high - energy light, from two nearby pulsars — Geminga and Monogem — around 900 light - years away.

Other photons from the laser beam would ricochet off the electrons and be boosted into high - energy gamma rays.

Two pulsars, Geminga and Monogem, are seen in this image in gamma rays, high - energy radiation produced when positrons and electrons collide with particles of light.

In a recent experiment performed at the Radioactive Isotope Beam Factory at RIKEN, an international collaboration with scientists from eleven countries, led by scientists of the Instituto de Estructura de la Materia, CSIC (Spain) and the RIKEN Nishina Center (Japan), made a very surprising observation: High - energy gamma rays — which are mediated by the electromagnetic force — are emitted in the decay of a certain excited nucleus — tin 133, in competition with neutron emission, the decay mode mediated by the strong nuclear force.

The High Energy Stereoscopic System (HESS) gamma - ray observatory opened in 2002 in Namibia, new telescopes are being built in Burkina Faso and Ethiopia, and the Southern African Large Telescope (SALT) was inaugurated in South Africa in 2005 and came fully online in 2011.

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

Now two sets of observations have shown that it is emitting high - energy gamma rays.

High - energy radiation from a gamma - ray burst reached Earth 4 minutes later than the lower - energy rays.

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.

He also is a co-discoverer of high - energy gamma rays and is responsible for developing many of the data - analysis algorithms used today in high - energy astrophysics.

Its jets produce many gamma rays, the highest - energy form of light, and we happen to be viewing the galaxy face on, which means one of its jets is pointing in our direction.

But Yohkoh could not detect the most energetic — and short - lived — forms of radiation: high - energy X-rays and gamma rays.

The trouble is that most such transitions within the nucleus emit high - energy X-rays or gamma rays, and these are tough to work with.

When magnetic field lines interact, they can release high - energy ions and electrons, which produce X-rays and gamma rays.

Last January, after a three - year sky survey, scientists with the Fermi Gamma - ray Space Telescope released a list of nearly 500 locations where the spacecraft detected the highest - energy gamma Gamma - ray Space Telescope released a list of nearly 500 locations where the spacecraft detected the highest - energy gamma gamma rays.

Such stars get so hot that they convert gamma rays, whose high energy helped keep the star from collapsing under its own gravity, into electrons and their antimatter counterparts, positrons.

When a giant star explodes as a supernova, it can outshine its own galaxy as it dishes out heat, X-rays, and the highest - energy radiation of all, gamma rays.

So when NASA launched a gamma - ray telescope into space in 2008, astronomers figured the high - energy radiation it detected would point the way to easily identifiable supernova remnants, black holes, and other extroverted objects.

The gamma ray excess is at energies 10,000 times higher than the glut of gamma rays detected at our galactic centre in 2003 by Europe's INTEGRAL probe.

The High - Altitude Water Cherenkov (HAWC) Gamma - Ray Observatory offers perspective on the very high energy light streaming from our stellar neighbors and casts serious doubt on one possible origin for a mysterious excess of anti-matter particles near EaHigh - Altitude Water Cherenkov (HAWC) Gamma - Ray Observatory offers perspective on the very high energy light streaming from our stellar neighbors and casts serious doubt on one possible origin for a mysterious excess of anti-matter particles near Eahigh energy light streaming from our stellar neighbors and casts serious doubt on one possible origin for a mysterious excess of anti-matter particles near Earth.

Two seconds after the gravitational signal, which only the automated «trigger» of the Hanford detector initially noticed, NASA's orbiting Fermi Gamma - ray Space Telescope picked up a blast of high - energy photons called a gamma ray bGamma - ray Space Telescope picked up a blast of high - energy photons called a gamma ray bgamma ray burst.

Its more than 300 water tanks can detect cascades of particles initiated by high - energy packets of light called gamma rays.

More than 300 massive water tanks sit waiting at the site for cascades of particles initiated by high - energy packets of light called gamma rays — many of which have more than a million times the energy of a dental X-ray.

Gamma - ray bursts are mysterious flashes of intense high - energy radiation that appear from random directions in space.

By using this high - power laser, it is now possible to generate all of the high - energy quantum beams (electrons, ions, gamma ray, neutron, positron).

The supernova explosions that create and spread heavy elements also unleash a torrent of high - energy radiation: gamma rays, X-rays, and ultraviolet light.

But Steinbring says that high - energy photons — belonging to gamma rays and X-rays — could be perturbed by even weaker fluctuations in the quantum foam.

This plasma of high - energy electron particles then release a controlled beam of ultra-energized photons, the gamma rays.

«LFEX laser» enables us to generate high energy pulses of quantum beams with large current, and one can expect such medical applications as particle beam cancer therapy and non-destructive inspection for bridges and etc. (or defect inspection by gamma - ray beam and neutrons).

High - energy gamma rays are so rare that satellites can't catch many.

Yesterday's inauguration of the first element of an international telescope array in Namibia provides astronomers with the most sensitive high - energy gamma ray observatory ever — a powerful new tool for studying the most violent processes in the universe.

Whether my buckle is beeping or not, my über - suit thus far offers no protection against the tiniest assassins of all: High - energy radioactivity such as beta particles and gamma rays can zip through most clothing to wreak havoc on cellular DNA.

New model connects the origins of very high - energy neutrinos, ultrahigh - energy cosmic rays, and high - energy gamma rays with black - hole jets embedded in their environments.

It does so by detecting the gamma rays those elements emit when they are bombarded by high - energy charged particles from space called cosmic rays.