Sentences with phrase «called supernovae»

Massive stars, although relatively rare, end their short lives in spectacular explosions called supernovae.

Some of the new results included deeper understandings of galaxies in the distant universe, more complete pictures of the massive galaxy clusters, and the searches for exploding massive stars, called supernovae.

NGC 1559 has hosted a variety of spectacular exploding stars called supernovae, four of which we have observed — in 1984, 1986, 2005, and 2009.

This is done by measuring the distance to exploding stars called supernovae, and how quickly they are receding due to the expansion of space - time.

The death of massive stars is reasonably well known — most blow their innards across galaxies in titanic explosions called supernovae — but their birth is another story.

When the nuclear reactions that power them run out of fuel, the stars can no longer resist their own intense gravity; they collapse and trigger the massive explosions called supernovae.

Bigger stars with masses at least five times greater than the sun's have much shorter life spans — sometimes only a few hundred thousand years — and die spectacularly in huge explosions called supernovae.

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

The team also determined that it is enriched in elements much heavier than hydrogen and helium, and the only way to get these heavy elements is from exploding stars called supernovae.

Massive stars end their lives in gigantic explosions, so - called supernovae.

The results of two studies of recent gamma - ray bursts, published today in the journal Science, indicate that exploding stars called supernovae may spawn some of these blasts.

A certain kind of exploding star, called a supernova, turned out to be fainter than expected in the distant past, indicating that the universe is ballooning at an ever - faster rate, and has been for nearly half of its 13.8 billion - year existence.

Two neighboring stars may have obliterated themselves in a pair of explosions called supernovas, producing two black holes.

Previously, astrophysicists disagreed about where the r - process occurs: Two top candidates were exploding stars called supernovas (SN: 2/18/17, p. 24) and neutron star mergers.

Last year, astronomers watching a rather ordinary galaxy witnessed something extraordinary: a stellar explosion called a supernova 10 times brighter than any previous blast.

But at any rate, he was right, this star wasn't there the day before and today we call it a supernova, the result of a big explosion.

When they die, stars explode in supernovae, leaving behind a cloud of ejected material called a supernova remnant.

Some stars end their lives with a huge explosion called a supernova.

The property results from the way they form: When a giant star runs out of fuel and can no longer fight against the crushing force of its gravity, its core shrinks to the size of an asteroid, and most of its mass is blasted away in a titanic explosion called a supernova.

This explosion is called a supernova, and when this happens, the star is torn apart, throwing material into space.

A pulsar is formed when a massive star runs out of nuclear fuel and dies in a cataclysmic explosion called a supernova.

Massive stars, on the other hand, will experience a most energetic and violent end, which will see their remains scattered about the cosmos in a enormous explosion, called a supernova.

When coming to age, these massive stars explode in a most violent detonation which flashes up at a luminosity of up to 10 billion times that of the sun, called supernova (of type II, or Ib or Ic), and ejecting the very greatest part of the stellar matter in a violently expanding shell.

A massive star (left), which has created elements as heavy as iron in its interior, blows up in a tremendous explosion (middle), scattering its outer layers in a structure called a supernova remnant (right).

The buildup of helium on the white dwarf eventually would have triggered an explosion, called a supernova.

I would call Supernova this year's Virus, but that film was at least laughable.

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.

Supernovae: For distances between galaxies, scientists measure the brightness of supernovae based on the mathematical formulae used to determine brightness as measured by distance, called «The Standard CandSupernovae: For distances between galaxies, scientists measure the brightness of supernovae based on the mathematical formulae used to determine brightness as measured by distance, called «The Standard Candsupernovae based on the mathematical formulae used to determine brightness as measured by distance, called «The Standard Candle».

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.

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.

But, as what's now called Tycho's supernova remnant demonstrates, something still fuels the radiation fire hundreds of years after its energy should have been drained.

«We call these «failed supernovae,»» says Stan Woosley, an astrophysicist at the University of California, Santa Cruz, who has modeled the process.

It wasn't until the 1980s that scientists realized there are subgroups of supernovas, and that one of them, called Type Ia, is very consistent in its brightness.

At this stage some stars become luminous blue variables, so called because they go through episodic changes in brightness, including brilliant outbursts that look a lot like supernovae.

New research zeroes in on one supernova, called SN 2017egm, which exploded May 23 within view of the European Space Agency's Gaia satellite, which monitors star positions.

• How might the burned - out stars called white dwarfs be brought to ruin by other stars in so - called Type Ia supernovae, inciting the fiery alchemy that yielded much of the iron in our blood and the potassium in our brains?

They concluded that the supernova may be powered by a rapidly spinning dead star called a magnetar.

The researchers looked at an unusually bright, uniform type of exploding star, called a Type Ia supernova.

The explosion, dubbed SN2014J, belongs to a class of supernovas called type Ia.

Some MACHOs may be neutron stars left behind after supernovae explosions, but most are thought to be tiny failed stars called brown dwarfs which have a mass of less than 8 per cent that of the Sun and are too small to sustain nuclear fusion reactions.

In 1993 the Japanese - American satellite called ASCA trained its instruments on a supernova remnant in the southern constellation Lupus, some 2,000 light - years distant.

This so - called Cherenkov radiation offers clues about supernovas and other explosions in space.

Gamma rays emanate from the most powerful and mysterious phenomena in the universe — quasars, supernovae, and the black hole - powered infernos called blazars.

All type 1a evolve from a type of star called a white dwarf, but pinning down exactly which white dwarfs are supernova precursors could lead to much more precise measurements of dark energy — and even reveal its true nature.

In the 1990s, they recognized that a class of exploding stars called Type Ia supernovas might fit the bill.

Another, less common kind of supernova, type 1a, occurs when a remnant of a star called a white dwarf steals matter from a companion star until the white dwarf explodes (SN: 4/30/16, p. 20).

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.

Bersten and her colleagues analyzed the light from the supernova and found that it matches models of the first phase of a supernova called the shock breakout phase, in which a shock wave from a massive star's collapse ricochets back from the star's core and pushes stellar material outward.

One of the newly discovered supernovae, named SNLS - 06D4eu, is the most distant and possibly the most luminous member of an emerging class of explosions called superluminous supernovae.

Recently, astronomers have discovered a related form of supernova, called Type Iax, which look like Type Ia, but are much fainter.