A group of scientists led by researchers at Cardiff University have discovered a rich inventory of molecules at the centre of
an exploded star for the very first time.
«Cosmic «dust factory» reveals clues to how stars are born: Scientists find new molecules within remnants of
an exploded star for the very first time.»
Not exact matches
Everything with mass in the universe theoretically creates them — you and me included — but only highly cataclysmic events, such as
exploding stars, colliding black holes, or the Big Bang, can generate waves that are powerful enough
for LIGO to detect.
EDM was
exploding, and yet, during live performances,
star DJs couldn't leave their banks of computers and turntables; the best they could manage
for onstage theatrics was to periodically throw their arms in the air to strike the much - mocked «Jesus pose.»
Former New York City Mayor Rudy Giuliani's admission Thursday night that President Donald Trump reimbursed attorney Michael Cohen
for a $ 130,000 payment to porn
star Stormy Daniels
exploded the White House's narrative on...
Some things
explode without a bearded man with a cigarette lighter, volcanoes
for example, even
stars.
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Stars Good Enough
For The Premier League Including Tottenham Loanee How Liverpool Can Make Use Of Their Share Of The # 5.1 bn TV Rights Money: New Faces That Will Make Them Premier League Heavyweights Once again Twitter
Explodes: Liverpool Striker Mario Balotelli Nets The Winner Against Tottenham
(Image) Astonishing moment Salford's FCs goalkeeper is sent off
for urinating on the pitch during match, twitter
explodes in fantastic fashion Liverpool 3 - 0 Huddersfield player ratings, stats and reaction: Firmino fires home as Reds return to winning ways This is what Jose Mourinho said to Martial before the
star came on to score the Manchester United winner vs Tottenham
SEE ALSO: Jake Livermore cocaine: Twitter
explodes as Hull man caught with class - A in system Chelsea face European giants in battle to sign Ajax youngster Premier League
star and England international tests positive
for cocaine
Reigle's thoughts on Van Gaal's playing style remain unknown but a move
for Mourinho could see short - term interest in the club
explode, much like shirt sales receive a boom after a
star player joins from another team.
Such 3 - D reconstructions encode important information
for astronomers about how massive
stars actually
explode.
Thanks to new detectors that can pick up neutrino signals and even gravitational waves, scientists will be ready when the next nearby
star explodes, Emily Conover reported in «Waiting
for a supernova» (SN: 2/18/17, p. 24).
But more mundane explanations are also plausible: Positrons might be spewed from nearby pulsars, the spinning remnants of
exploded stars,
for example.
«Our three - dimensional map is a rare look at the insides of an
exploded star,» says Dan Milisavljevic of the Harvard - Smithsonian Center
for Astrophysics (CfA).
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.
Astronomers are now using a similar inference to solve the cosmic mystery of a black hole's birth — looking
for stars that fail to
explode.
Instead, the signal could be produced by amplified cosmic rays generated when particularly large
stars explode, says Peter Biermann of the Max Planck Institute
for Radioastronomy in Bonn, Germany, and colleagues.
If the
stars reappear, Fraser says, «then they clearly haven't
exploded,» and the search
for failed supernovae will go on or fade away.
They look
for galaxies that contain Cepheid
stars and another reliable yardstick, Type Ia supernovae,
exploding stars that flare with the same amount of brightness.
Long gamma - ray bursts, which flash
for up to 100 seconds or longer, are believed to occur when massive
stars explode as supernovae.
For example, SN 2017egm might have ejected less mass than its supernova counterparts because its massive
star might have shed mass before
exploding.
Measurements of the bending of light, the motions of galaxies, and the brightness of distant
exploding stars have revealed a new truth: Unseen elements, collectively called dark matter and dark energy, account
for roughly 96 percent of the mass of the universe.
3C58 (1181): The aftermath of this
exploding star was visible
for six months, giving Chinese and Japanese astronomers ample time to record it.
When a
star explodes as a supernova, it shines brightly
for a few weeks or months before fading away.
As
for the fate of these huge
stars, he adds, «They could
explode as spectacular supernovas and leave no remnants behind.»
This
exploding star, named iPTF14hls, has erupted continuously
for the last three years, and it may have had two other outbursts in the past, astronomers report in the Nov. 9 Nature.
Later this year, astronomers will begin a new sky survey to look
for signs of the stuff among
exploding stars and ancient galaxy clusters.
Comets, meteorites, planets, moons,
stars and even
exploding stars can be seen without a telescope, and hence, when they are brought closer
for inspection with such an instrument as the telescope, these distant objects are not so mysterious, just somewhat so.
To understand gravity better, scientists are looking
for gravitational waves, ripples in space - time that result from things like black holes colliding and
stars exploding, according to Amber Stuver, a physicist at Louisiana's Laser Interferometer Gravitational - Wave Observatory (LIGO).
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.
The evidence
for dark energy came from studies of a kind of
exploding star known as a Type 1a supernova.
By gathering energetic X-rays, it will study the physics of black holes, the evolution of galaxy clusters, and the formation of heavy elements — crucial
for life — in
exploding stars.
That
star, called Eta Carinae, could
explode like SN 2006gy, which «probably wouldn't be good
for Earth,» Corcoran says, because the event could destroy communications satellites and damage the planet's healing ozone layer.
Carina is also looking promising as a destination
for stars to
explode in the future.
As a check of this map, Steve Rodney of Johns Hopkins University plans to search
for exploding stars called supernovae in the Frontier Fields.
Now that result has inspired a forecast
for the system's future: The black hole will swallow even more mass from an unfortunate
star circling it, then likely dash away on its own when its companion
explodes.
«Victory will go to the one who gets the 3 - D model of a 15 - solar - mass
star [the size of 15 suns] to
explode with the right energy,» says Woosley, since that's the size of
star that can synthesize elements important
for life.
Astronomers have observed
for the first time the thunderclap of x-rays that announces a
star has
exploded into a supernova.
Measurements based on
exploding stars suggest that distant galaxies are speeding away from each other at 73 kilometers per second
for each megaparsec (about 3.3 million light - years) of space between them.
For the first time, a «shock breakout» in an
exploding supergiant
star was discovered at visible wavelengths.
It was as if, in the billion or so years it took
for the light from these
exploded stars to arrive at Earth, the space between the
stars and our planet had stretched out more than expected.
Eventually, they
explode as supernovae (see Székely & Benedekfi (2007)
for more on the death of
stars).
MAUNA KEA, HI — Astronomers have
for the first time spotted four images of a distant
exploding star, arranged in a cross-shape pattern by a powerful gravitational lens.
As this Universe Today article explains, eventually something happens — a supernova
explodes nearby,
for instance, or a passing
star exerts its gravity — to change the pressure inside the cloud, causing it to collapse into a disk.
Occasionally these objects look something like planetary nebulae, as in the case of the Crab Nebula, but they differ from the latter in three ways: (1) the total mass of their gas (they involve a larger mass, essentially all the mass of the
exploding star), (2) their kinematics (they are expanding with higher velocities), and (3) their lifetimes (they last
for a shorter time as visible nebulae).
And so this is not only an opportunity to kind of turn on the soundtrack to colliding
stars,
exploding stars, the Big Bang, but it might also be an opportunity to listen
for dark phenomenon we've really never been able to detect any other way.
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.
Every statistician knows that with enough variables (in this case, enough
stars exploding in different ways
for millions of years), many untestable explanations can be proposed.
' The Kepler space telescope, famous
for finding exoplanets, has also been valuable in tracking
exploding stars known as supernovae
This new view of the debris of an
exploded star helps astronomers solve a long - standing mystery, with implications
for understanding how a
star's life can end catastrophically and
for gauging the expansion of the universe.