Sentences with phrase «stars explode as supernovae»

originate from fusion reactions in the heart of stars and are spewed out when those stars explode as supernovae, the relatively high metallicity of the galaxy suggests that it had already seen the birth and death of generations of stars by the time the universe was 700 million years old.»

When massive stars explode as supernovae, they disperse the heavier elements they have built into space, where they become the building blocks of the next generation of stars.

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

After a star explodes as a supernova, it usually leaves behind either a black hole or what's called a neutron star — the collapsed, high - density core of the former star.

Stars exploding as supernovae are the main sources of heavy chemical elements in the Universe.

First, a massive star exploded as a supernova, blasting its debris out into space.

When a star explodes as a supernova, it shines brightly for a few weeks or months before fading away.

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.

A neutron star forms when a massive star explodes as a supernova, blowing off its outer layers while its core collapses.

According to the popular «collapsar» theory, a GRB occurs when a very massive star explodes as a supernova and collapses into a black hole.

The results of the simulations thus lend support to basic perceptions of the dynamical processes that are involved when a star explodes as supernova.

Since pulsars are superdense, spinning neutron stars left over when a massive star explodes as a supernova, it was logical to assume that the Monogem Ring, the shell of debris from a supernova explosion, was the remnant of the blast that created the pulsar.

Evolutionists therefore believe that the hundred or so heavier chemical elements (97 % of all chemical elements) were produced either deep inside stars or when some stars exploded as supernovas.

A fourth theory assumed that two helium nuclei and several neutrons might merge when helium - rich stars exploded as supernovas.

Not exact matches

Eta Carinae is sometimes called a «supernova impostor» because its eruptions are so violent they can be nearly as bright as exploding stars.

The supernova, known as SN1987A, was first seen by observers in the Southern Hemisphere in 1987 when a giant star suddenly exploded at the edge of a nearby dwarf galaxy called the Large Magellanic Cloud.

Most stars end their lives either slowly fading away or exploding as a supernova.

The most massive stars in the original cluster will have already run through their brief but brilliant lives and exploded as supernovae long ago.

A neutron star is the crushed core of a massive star that ran out of fuel, collapsed under its own weight, and exploded as a supernova.

Lower velocity runaway stars can be produced when one half of a binary pair explodes as a supernova, blasting its partner away.

The object is located in the center of a colorful cloud of material consisting of the remains of an ancient star that exploded as a massive supernova.

The star, which was 25 times as massive as our sun, should have exploded in a very bright supernova.

Larger stars — those with more than about eight solar masses — will explode as supernovas.

There, young stars, born during the merger, will explode as supernovas, and a quasar — a giant black hole ignited by the galactic collision — might spew energetic radiation.

A type Ia supernova that exploded when the universe was half its present size is about one ten - billionth as bright as Sirius, the brightest star in the sky.

The vast distances to the galaxies and thick shrouds of dust blocked a view of the inevitable climax: supernovas exploding in rapid succession as each generation of giant stars dies out.

Cassiopeia A Just before it explodes as a supernova, a massive star is like an onion, with layers of different chemical compositions atop one another.

Stars that are eight or more times the mass of the sun explode as supernovae at the end of their lives.

As for the fate of these huge stars, he adds, «They could explode as spectacular supernovas and leave no remnants behind.&raquAs for the fate of these huge stars, he adds, «They could explode as spectacular supernovas and leave no remnants behind.&raquas spectacular supernovas and leave no remnants behind.»

Four images of the same supernova flashed in the constellation Leo as its light bent around a galaxy sitting about 6 billion light - years away between Hubble and the exploding star, researchers report in the March 6 Science.

When a massive star dies, it explodes as a supernova, which includes a short burst of visible light, as in this illustration.

Black holes this size are «born» when a heavyweight star — more than ten times the mass of the Sun — explodes as a supernova at the end of its life.

Depending on its chemistry, the star might then explode as an exceptionally bright supernova or collapse into a smaller, faster - spinning millisecond pulsar, an event that has not been witnessed before (arxiv.org/abs/1302.4634).

Overall, supernovas are rare, but as the solar system circles through the Milky Way, it sometimes passes through one of our galaxy's spiral arms, where large numbers of massive stars form and explode as supernovas.

They employed a broad spectrum of methods and other measurement data, including Baryonic Acoustic Oscillations, which are density waves from the early universe, local measurements of the Hubble constant, which specifies the universe's rate of expansion at the present day, as well as a certain group of supernovae or exploding stars.

As this cluster is relatively old, a part of this lost mass will be due to the most massive stars in the cluster having already reached the ends of their lives and exploded as supernovaAs this cluster is relatively old, a part of this lost mass will be due to the most massive stars in the cluster having already reached the ends of their lives and exploded as supernovaas supernovae.

Various lines of evidence, including observations from NASA's Fermi Gamma - ray Space Telescope, support the idea that shock waves from the expanding debris of stars that exploded as supernovas accelerate cosmic rays up to energies of 1,000 trillion electron volts (PeV).

That meant the X-ray source and Geminga were one and the same pulsar: the dense, rapidly spinning core of a star that exploded as a supernova.

These stars are rapidly working their way through their vast supplies of hydrogen, and have only a few million years of life left before they meet a dramatic demise and explode as supernovae.

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.

(When big stars reach the end of their life, they explode as supernovae, leaving neutron stars or black holes behind.)

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Neutron stars are the superdense remains of massive stars that have exploded as supernovas.

The evidence for dark energy came from studies of a kind of exploding star known as a Type 1a supernova.

When these supercharged early stars ran out of fuel and exploded as supernovae, they would have blasted the interstellar gas right out of the galaxy.

That's according to a new analysis — part of the biggest census of star - forming regions to date — that focused on stars eight times the mass of our sun or larger (the size that eventually explode as supernovae) at a very early stage in their lifetime, when they'd still be inside the clouds of gas and dust where they formed.

It's not clear why, although one possibility is that the star is on its way to dying a spectacular death as an exploding supernova.

At the end of its life, a massive star inevitably explodes as a supernova.

As a check of this map, Steve Rodney of Johns Hopkins University plans to search for exploding stars called supernovae in the Frontier Fields.

These neighbouring bubbles eventually merged to form a superbubble, and the short life spans of the stars at its heart meant that they exploded as supernovae at similar times, expanding the superbubble even further, to the point that it merged with other superbubbles, which is when the supershell was formed.