Sentences with phrase «jets of material at»

Not exact matches

«To produce powerful jets, black holes must feed on the same material that the galaxy uses to make new stars,» said Michael McDonald, an astrophysicist at the Massachusetts Institute of Technology in Cambridge and coauthor on the paper.

As material in the disk falls toward the black hole, some of it forms dual jets that blast subatomic particles straight out of the disk in opposite directions at nearly the speed of light.

The acrid miasma of 91,000 liters of jet fuel and the 10,000,000 tons of building materials and contents burning at temperatures above 1,000 degrees Celsius extended from lower Manhattan across the East River into Brooklyn and beyond to the sea.

«Studying the formation and evolution of jets in metals and, more generally, how materials at extreme conditions respond using X-ray phase contrast imaging is relevant to such things as meteorite impacts, the performance of explosives and detonators, understanding crack nucleation and propagation in materials, and the development of new materials with tailored properties whose applications include automotive and airplane components, lighter and more impact - resistant armor, and debris shields in space, to name a few.»

The pair orbit each other once every 4.8 hours, shining in X-rays and occasionally sending jets of material, or flares, outwards at close to the speed of light.

At any given moment, as many as 10 million wild jets of solar material burst from the sun's surface.

Solar jets are ejections from the surface of the Sun, where 1 - 10 tonnes of hot material are expelled at speeds of up to 1000 kilometres per second.

«You don't pick up anything in terms of ambient noise,» says study coauthor John Rogers, a materials scientist and bioengineer at Northwestern University in Evanston, Ill. «You can be next to an airplane jet engine.

The radio waves provide evidence that the explosion either produced a jet of particles moving at nearly the speed of light or a «cocoon» of material from the explosion exists and is expanding more slowly.

According to planetary scientist John Spencer of Lowell Observatory in Flagstaff, Arizona, Tvashtar was so close to Io's horizon at the time that the telescope would not have seen the hot material unless it was jetting above the surface.

The fundamental problem, he says, is that conventional jets become impractical at velocities exceeding about Mach 2.7 (2.7 times the speed of sound); the inflowing air slows rapidly on entering the engine and generates more heat than most available materials can withstand.

A quick glance at the Hubble picture at top shows that this celestial body, called He 2 - 90, looks like a young, dust - enshrouded star with narrow jets of material streaming from each side.

«More embarrassing to astrophysicists is our lack of understanding of black hole jets — phenomena in which the forces near a supermassive black hole somehow conspire to spew out material at ultrarelativistic speeds (up to 99.98 percent of light speed).

It is surrounded by a disk of material that is slowly funneling into the black hole, heated by the action of a jet that is moving at very high speed out from the black hole.

Astronomers using a world - wide collection of radio telescopes, including the National Science Foundation's Very Long Baseline Array (VLBA) of the National Radio Astronomy Observatory (NRAO), have made a dramatic «movie» of a voracious, superdense neutron star repeatedly spitting out subatomic particles at nearly the speed of light into two narrow jets as it pulls material from a companion star.

Before crossing the point of no return (the event horizon), this material generates huge amounts of electromagnetic radiation and, in the case of quasars, blasts out two jets of subatomic particles that travel in opposite directions at nearly the speed of light.

This phenomenon, called superluminal motion, is not real, but rather is an illusion caused by the fact that the material in the jet is moving at nearly the speed of light almost directly toward the observer.

At right, the jet can not punch out of the shell of explosion debris, but instead sweeps up material into a broad «cocoon,» which absorbs the jet's energy and emits X-rays and radio waves over a wider angle.

In the red sequence (304 angstroms), we can see very small spicules — jets of solar material — and some small prominences at the sun's edge, which are not easy to see in the other two sequences.

The camera gawks more pornographically at the gratuitous footage of their handsomely appointed woodland home, the luxe private jet they fly around in, and the tasteful fabric of Ana's wedding dress than the material actually verging on pornography.

«Speaking of People: «Ebony,» «Jet,» and Contemporary art» and Titus Kaphar ran at the Studio Museum in Harlem through March 8, 2015, «Material Histories» through October 26, 2014.