Sentences with phrase «by a supernova»

The shock waves created by a supernova explosion, astronomers theorized, could generate enormous magnetic fields capable of accelerating electrons, protons, and other ions to nearly the speed of light.

But the image also shows the effects of stellar death — filaments created by a supernova explosion (left).

For this project, she learned an observing technique that analyzes the different colors of light produced by the supernova remnants.

The gases ejected by a supernova explosion are relatively cool, but as they sweep outward at a speed of several thousand kilometres per second they accumulate interstellar gas.

The team also succeeded in explaining, with a theoretical model, that the actual changes (balance of inflow and outflow) in gas levels they observed were the result of the increasing amount of gas falling into the supermassive black holes within the gas disks enhanced by strong turbulence generated by supernova explosions (an activity associated with star formation) when a star inside the dense gas disks dies.

Then, last year, after analyzing crust samples collected from the Pacific, Atlantic and Indian oceans, scientists estimated that our planet had, sometime between 2.6 million and 1.5 million years ago, been buffeted by supernovae shock waves — ones that left their mark not only on Earth's surface but also affected its atmosphere.

Because all elements in the universe heavier than hydrogen, helium, and lithium have been forged by nuclear fusion in the cores of stars and then scattered into space by supernova explosions, the find indicates that the galaxy, at the age we're now observing it, was old enough for at least one generation of stars to have formed, lived, and died.

Radio waves are produced by supernova remnants and by electrons passing through the magnetic fields of distant radio galaxies.

A conceptual rendition of gas being driven into a supermassive black hole following a supernova explosion Strong turbulence caused by supernova explosions inside a dense molecular gas disk in the central region of a galaxy disturbs the stable motion of gas.

Assuming that the Local Bubble or Chimney was created by the supernovae of young, massive stars during the past few million years, some astronomers have been looking for their probable source among the 27 member B stars of the Pleiades moving group, which are located towards the nearest part of Gould's Belt of massive hot, OB - type stars (more discussion in pdf).

Although these outflows are most likely to be driven by massive central black holes, it is also possible that the winds are powered by supernovae in a starburst nucleus undergoing vigorous star formation.

«This is the first time that we have such an eruption followed by a supernova for which there is even an image of the progenitor, in addition to a good set of observations during the eruptions,» says Rest.

For example, the energy released by the supernova is more than the theory predicts.

The arrow points to an expanding ring of debris expelled by a supernova.

The Crab Nebula, which was formed by a supernova explosion recorded in 1054.

«We could see radio emission from electrons accelerated by supernova explosions spiralling in magnetic fields, and absorption by dense electron - ion plasma clouds — it's absolutely fascinating.»

«By combining observations from the two telescopes we've been able to distinguish radiation being emitted by the supernova's expanding shock wave from the radiation caused by dust forming in the inner regions of the remnant,» said Giovanna Zanardo of the International Centre for Radio Astronomy Research (ICRAR) in Perth, Western Australia.

The Hubble observations were made with Hubble's sharp - eyed Wide Field Camera 3 (WFC3), and were conducted by the Supernova H0 for the Equation of State (SH0ES) team, which works to refine the accuracy of the Hubble constant to a precision that allows for a better understanding of the universe's behavior.

These metals were spread around the galaxies by supernova explosions.

Composite image of the X-ray pulsar SXP 1062 surrounded by the supernova remnant.

They hunted for runaway stars — objects escaping the cluster at high velocities — that might have been kicked out of orbit by the supernova explosion that formed the magnetar.

SAN JOSE, CALIFORNIA — When the biggest optical telescope in the eastern U.S. starts scanning the sky early next year, it won't be distracted by supernovas or gamma ray bursts.

Or it may be a more recent creation, having been blasted out of the galactic discs by supernova explosions.

«Even if our formation wasn't triggered by a supernova, the presence of decay products of certain radioactive elements points to a supernova perhaps seeding the already formed young solar system with enriched elements.»

Sometimes the process is accompanied by a supernova, when the star's outer layers explode outwards to produce a brilliant flash of light at visible wavelengths.

«The oxygen we breathe, the iron in our blood, the carbon in plants, the silicon in the sand — all the matter that makes up you and the Earth is made and distributed by supernovae,» Janka says.

The Crab Nebula, a tangled web of cosmic debris cast off by a supernova nearly 1000 years ago, is starring in a new action - packed film.

The partial evaporation of the halo prior to the explosion is crucial to its later enrichment by the supernova, he emphasized.

To settle the question of whether the heavy elements created by supernovae remain mostly in their home galaxies or are spread out through intergalactic space, the researchers looked through the Perseus cluster in eight different directions.

They believe the gas may be driven by supernova explosions and the intense stellar winds from an unseen cluster of young stars in one of our Galaxy's spiral arms.

Astronomers studying data from the National Science Foundation's Very Long Baseline Array and other telescopes have concluded that a binary pair of stars forming an energetic microquasar was blasted out of the cluster in which it was born by a supernova.

It 1054 the night sky was dominated by a supernova that became the Crab Nebula.

Astronomers have been trying to measure the huge amounts of dust spewed by a supernova.

It could easily have been caused by a supernova punching through the top and bottom of the galactic disk, the intense stellar winds from 10 or so hot stars, a powerful gamma - ray burst, or even a large star moving through the area.

Cloud of hot gas in the innermost 10 light years of the galactic core of the Milky Way is heated by supernova shockwaves and possibly colliding winds from young massive stars (more information).

Steering the ship is taken care of by the A.I so up to eight people can attempt to keep it from being destroyed by a supernova, along with other dangers from the final frontier.

While Law has his pet hypothesis about the origin of fast radio bursts — a magnetar surrounded by either material ejected by a supernova explosion or material ejected by a resulting pulsar — there are other possibilities.

These charged particles are probably generated by supernova explosions far away in the galaxy.

The colors represent the relative amounts of short - lived radioactive isotopes, such as iron - 60, injected into a newly formed protoplanetary disk (seen face on with the protostar being the light purple blob in the middle) by a supernova shock wave.

Iron has been detected in the x-ray spectra of the afterglow, as would be expected since iron atoms are known to be synthesized and blown into space by supernova explosions.

The «Local Bubble» of low - density, hot and ionized gas, is actually part of a tube - like chimney that extends through the local region of the spiral disk into the surrounding galactic halo, and so may can act as a vent for the energetic hot gas produced by supernovae (more).

Superbubbles, powered by supernova explosions and young stellar winds, control the way heavy elements, produced only in the cores of stars, are distributed throughout the galaxy, the scientists said.

No fusion means gravitational collapse followed by a supernova explosion that splashes the star all over its galaxy.

A galaxy, no matter how small, must be massive enough to hold on to elements heavier than iron, which are released by supernovae.

Some are found in globular clusters, but most move in a huge cloud around the disk called the galactic halo, which has a luminous inner component defined by globular star clusters and other easily observable stars (with coronae of hot gas possibly expelled by supernovae and of high - velocity neutron stars) and an outer dark - matter component inferred from its gravitational impact on the Milky Way's spiral disk.

DUNE will focus on studying some of the most fundamental questions in modern physics — from why there is so much more matter than anti-matter in our universe, to how black holes can be formed by supernovae.

We have seen black holes, and we know GCR are accelerated by supernovae.