Sentences with phrase «as supernovae at»

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.

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

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.

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

Not exact matches

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.

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.

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.

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

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.

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.

For example the filaments to the right of the image are the remnants of an ancient supernova (SNR G332.4 - 00.4, also known as RCW 103), and the glowing red filaments at the lower left surround an unusual and very hot star (RCW 104, surrounding the Wolf - Rayet star WR 75).

FLASH OF LIGHT Type 1a supernovas, such as the one seen in this Hubble Space Telescope image, can be triggered in at least two different ways, new research shows.

When a massive star runs out of fuel at the end of its life, it collapses and triggers a violent explosion known as a supernova.

Jon Mauerhan at the Steward Observatory in Tucson, Arizona, cites brightening on 26 September and material shooting out at 13,000 kilometres per second as sure - fire signs that SN 2009ip truly went supernova (arxiv.org/abs/1209.6320).

Rest fell in love with supernovas by accident, as a young researcher at the Cerro Tololo Inter-American Observatory in Chile.

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.

The supernova was discovered in July 1992 by Roberto Antezana of the University of Chile as part of a search being conducted there and at Cerro Tololo Inter-American Observatory in Chile.

The results, presented April 15 at a conference in Geneva, may force scientists to rethink theories that focus on supernovas as the producers of these speedy particles.

Discovered as part of the SNLS — a five - year program based on observations at the Canada - France - Hawaii Telescope, the Very Large Telescope (VLT) and the Gemini and Keck telescopes to study thousands of supernovae — the two supernovae could not initially be properly identified nor could their exact locations be determined.

Its huge 15 - ton mirror excels at light - sensitive work, such as tracking distant supernovas to determine how the universe's expansion is changing over time.

The groups used different statistical approaches to subtract out the gamma - ray emission from normal astrophysical sources such as pulsars and supernovae to hunt for a dark matter signal, and each arrived at the same conclusion — that any gamma - ray light coming from dark matter must be generated by a relatively heavy particle.

To ascertain the age of the boulders strewn by the glaciers and thus come up with a date when glaciers were at their greatest extent, Willenbring and colleagues used a technique known as cosmogenic nuclide exposure dating, which measures the chemical residue of supernova explosions.

At current estimated rates of supernova formation in the Milky Way, the odds of one popping off in the next 50 years could be as high as 90 %.

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.

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

Scientists suspect some sources: the Big Bang itself, shock waves from supernovas collapsing into black holes, and matter accelerated as it is sucked into massive black holes at the centers of galaxies.

We know from very precise supernova observations that the universe is accelerating, but at the same time we rely on coarse approximations to Einstein's equations which may introduce serious side - effects, such as the need for dark energy, in the models designed to fit the observational data.»

Sobral adds: «But star formation at this rate leads to a lot of massive, short - lived stars coming into being, which explode as supernovae a few million years later.

A rapidly rotating but unseen companion star — one that collapsed as a neutron star or black hole at the time of the supernova — could have produced these jets.

At its brightest, Supernova 1987A glowed as intensely as the stars in the Big Dipper constellation.

These sources seemed best explained by hot matter spiraling into black holes tens to thousands of times as massive as the small ones born at the hearts of individual supernova explosions (ScienceNOW, 7 June 2001).

«If you have many young stars all forming in the same place at the same time, they have tremendous stellar winds; some of them will blow up as supernovae — a lot of things can happen that heat gas and cause bubbles to expand,» Finkbeiner said.

The white dwarf accretes material from the companion star, then at some point, it might explode as a type Ia supernova.

A group of astronomers used Hubble to study the remnant of the Type Ia supernova explosion SNR 0509 - 68.7 — also known as N103B (seen at the top).

Remarkably, these supernovae were spotted as close as 600 light years from the bright nuclear regions of these galaxies — despite being at least 150 million light years from the Earth.

At his proposed distance, the 1181 explosion was roughly a fifth as luminous as the 1987 supernova in the Large Magellanic Cloud, a nearby galaxy, that also emitted less light than the norm.

A newfound star in a nearby galaxy appears to have cheated death by blowing up at least twice as a supernova.

The Chandra X-Ray Observatory has been busy gathering information on cosmic phenomena such as supernovas and black holes, and will continue to do so until at least the year 2009.

The Crab Nebula, one of the most famous nebulae and seen here by the Hubble Space Telescope, is actually the expanding explosion of a core collapse supernova, the light of which was bright enough to be seen here on Earth in the year 1054 CE, as documented by Chinese astronomers at the time.

The gas is typically at a temperature of 100,000,000 K, and it may have originated as hot gas ejected by numerous supernovas.

A new study led by Keiichi Ohnaka, a researcher at Catholic University of the North in Chile, sought to understand how the distant red supergiant star Antares manages to expel so much matter off its surface as it nears the end of its life and nears its finale as a spectacular supernova.

At 7:30 p.m. March 23, he will present «Supernova 1987A: Thirty Years Later» at the Marjorie Barrick Museum as part of the University Forum lecture serieAt 7:30 p.m. March 23, he will present «Supernova 1987A: Thirty Years Later» at the Marjorie Barrick Museum as part of the University Forum lecture serieat the Marjorie Barrick Museum as part of the University Forum lecture series.

The scientists trained the mighty Keck telescopes at known supernovae and used their findings to determine that the expansion of the Universe was not slowing down, as was expected, but in fact was speeding up — driven by a mysterious repelling force now called Dark Energy.

Colored according to x-ray energy intensity, this supernova remnant's bluish shockwave bubble is twice as hot as the mottled gaseous debris expanding behind at 10 million degrees Celsius (more at Astronomy Picture of the Day and CXC).

Pulsars are essentially dead stars that at one point exploded as supernovas.

Aiming the 300 - foot at the supernova remnant known as the Crab Nebula in 1968, astronomers Staelin and Reifenstein discovered that the radio waves coming from the point inside the Nebula was not constant but pulsed.

Tycho found it at first as bright as Jupiter, but the supernova soon grew as brilliant as Venus (around -4 magnitude).

At least one of the astronomers suspects a star in that cluster exploded as a supernova and shot out gas filaments that formed new stars over a large region of space.

But as a telescope that stares at single patches of space for long periods of time, it can capture a vast trove of other cosmic treasures — especially the kind that change rapidly or pop in and out of view, like supernovae.