Sentences with phrase «supernovae at»

«Astrophysicists catch two supernovae at the moment of explosion.»

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.

Artist's conception of evolution of metal - poor and «metal - rich» supernovae at different phases and simulated light curves from shock breakout (ultraviolet) through plateau (red, green and blue colors) to exponential decay.

Observations of supernovae at different distances convinced us that the universe's expansion is accelerating, and that dark energy must exist.

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

They can explode in spectacular supernovae at the end of their lives, forming some of the most exotic objects in the Universe — neutron stars and black holes.

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.

Light from a distant supernova at z = 1.491 is detected in four images after being deflected en route by gravitational forces.

Neutron stars are the remains of massive stars that explode as a supernova at the end of their normal lifetime.

The Swiss artist Pipilotti Rist has gone supernova at the New Museum.

Not exact matches

The simple audacity on your part to fearlessly charge at whatever goal you set before yourself will challenge and provoke others to follow in your footsteps and dream up a supernova idea of their own, and ultimately succeed in living the life of a star.

The universe itself, as described by science, may be seen as our Mother but it can also be a capricious Tyrant who could destroy all of us in the blink of an eye and with less effort at any moment (supernova, asteroid, etc).

Then light was liberated, and then gravity created the first stars and galaxies, then billions of years later, a local star went supernova and seeded the local nebula with heavier elements, elements necessary for life, elements that were not created during the Big Bang, then the sun was born, then the planets coalesced, and billions of years later some primate wrote a story about how the Earth was created at the same time as the rest of the universe, getting it wrong because that primate did not have the science nor technology to really understand what happened, so he gave it his best guess, most likely an iteration of an older story told prior to the advent of the Judeo Christian religion.

The heavy chemical elements required for life (carbon, oxygen, nitrogen, phosphorous, and so forth) took several billion years of cooking time at the heart of stars before supernovas eventually dispersed them throughout space.

While your toddler may seem like a supernova of unfocused movement, children generally develop physical skills in a predictable sequence, says Andrew Adesman, chief of developmental and behavioral pediatrics at Steven and Alexandra Cohen Children's Medical Center of New York.

At the time, astronomers were still struggling to pin down the universe's expansion rate, and Schmidt's student project to spot supernovae was a key.

She estimated Buso's chances of such a discovery, his first supernova, at one in 10 million or perhaps even as low as one in 100 million.

In 1989, by then a Ph.D. candidate at Harvard, Schmidt used supernovae distance markers to work out how fast the universe was expanding in real time.

«No other supernova had shown that kind of phenomenon,» says Richard McCray, an astrophysicist at the University of California, Berkeley.

This new 3 - D map provides the first detailed look at the distribution of stellar debris following a supernova explosion.

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.

Based at the Australian National University in Canberra, Schmidt was attempting to pinpoint the positions of supernovae — exploding stars that, at their apex, can outshine 5 billion suns.

As technology advances, new facilities keep providing fresh looks at the remains of the supernova.

Observations of supernovas suggest that the universe is expanding at 73 kilometers per second for each megaparsec (about 3.3 million light - years).

She is also planning a follow - up study of other recent supernova impostors with the help of an undergraduate research assistant at UW Bothell.

At first, astronomers suspected that 1987A was a class of supernova known as type 1a — the detonation of a stellar core left behind after a star like the sun quietly sheds gas at the end of its lifAt first, astronomers suspected that 1987A was a class of supernova known as type 1a — the detonation of a stellar core left behind after a star like the sun quietly sheds gas at the end of its lifat the end of its life.

Observations of distant exploding stars, or supernovas, indicated that the space between us and them was expanding at an increasing clip.

W. Kunkel and B. Madore, Las Campanas Observatory, report the discovery by Ian Shelton, University of Toronto Las Campanas Station, of a mag 5 object, ostensibly a supernova, in the Large Magellanic Cloud at R.A. = 5h35m.4, Decl.

At the time, Schmidt thought he had a pretty good handle on the evolution of the cosmos: It began in a tiny fireball of energy — the Big Bang — and had expanded outward ever since, carrying galaxies and supernovae along for the ride.

«A neutron star at this location would be surprising,» said Binder, «since we already knew that this star was a supernova impostor — not an actual supernova.»

The most famous wind nebula, powered by a pulsar less than a thousand years old, lies at the heart of the Crab Nebula supernova remnant in the constellation Taurus.

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.

New research from the Niels Bohr Institute at the University of Copenhagen and Aarhus University shows that not only can grains of dust form in gigantic supernova explosions, they can also survive the subsequent shockwaves they are exposed to.

This supernova remnant, named RCW103, and the intriguing object at its center, can be detected with an X-ray telescope like the one on Swift but is invisible at wavelengths that human eyes can see.

Composite photo of the slowest - spinning neutron star discovered so far (9 - 2016): background stars photographed in optical wavelengths; colorful cloud is the supernova remnant RCW 103, photographed in X-ray wavelengths, with the white neutron star at its center.

Supernova iPTF14hls has erupted continually since its discovery in 2014, fluctuating in brightness at least five times.

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.

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

«Massive fails» like this one in a nearby galaxy could explain why astronomers rarely see supernovae from the most massive stars, said Christopher Kochanek, professor of astronomy at The Ohio State University and the Ohio Eminent Scholar in Observational Cosmology.

The latest pop at an answer weaves astrophysics, particle physics and biochemistry into a startling proposal: that the stellar explosions known as supernovae are to blame.

After running a number of computationally intensive simulations of supernova light at the National Energy Research Scientific Computing Center (NERSC), a Department of Energy Office of Science User Facility located at Berkeley Lab, Goldstein and Nugent suspect that they'll be able to find about 1,000 of these strongly lensed Type Ia supernovae in data collected by the upcoming Large Synoptic Survey Telescope (LSST)-- about 20 times more than previous expectations.

It doesn't necessarily make sense, said Stanek, professor of astronomy at Ohio State, that a massive star could undergo a supernova — a process which entails blowing off much of its outer layers — and still have enough mass left over to form a massive black hole on the scale of those that LIGO detected.

They could help pin down the point at which stars go supernova.

But it turned out that the more you looked at supernovas, the wider the variety you saw, and that consistency disappeared.

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.

«This should break all records for how long a superluminous supernova can be followed,» Raffaella Margutti, study co-author and an astronomer at Northwestern University, said in the statement.

Researchers used supernovas, cosmic microwave background radiation and patterns of galaxy clusters to measure the Hubble constant — the rate at which the universe expands — but their results were mismatched, Emily Conover reported in «Debate persists on cosmic expansion» (SN: 8/6/16, p. 10).

«We have predicted both effects some years ago by our three - dimensional (3D) simulations of neutrino - driven supernova explosions,» says Annop Wongwathanarat, researcher at the RIKEN Astrophysical Big Bang Laboratory and lead author of the corresponding publication of 2013, at which time he worked at MPA in collaboration with his co-authors H. - Thomas Janka and Ewald Müller.

In fact, SN 2017egm was not only superluminous, but superclose: At just 420 million light - years away, it was three times closer than any other observed supernova of its type.

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