Sentences with phrase «supernova explosion»

Pulsars are a type of neutron star that are born in supernova explosions when massive stars collapse.

More common lower - energy cosmic rays — thought to emerge in the aftermath of supernova explosions in the Milky Way — curve so much in the galaxy's magnetic field that they appear to come from all over the sky.

«Currently, Super-Kamiokande can detect neutrinos from supernova explosions anywhere in our own Milky Way galaxy,» says Vagins, of the Kavli Institute for the Physics and Mathematics of the Universe.

«We could see radio emission from electrons accelerated by supernova explosions spiralling in magnetic fields, and absorption by dense electron - ion plasma clouds — it's absolutely fascinating.»

The Carnegie team focused on a rare isotope of titanium, titanium - 49, because this isotope is the product of radioactive decay of vanadium - 49 which is produced during supernova explosions and transmutes into titanium - 49 with a half - life of 330 days.

In return, the LIGO and Virgo collaborations will be sifting through data to search for gravitational waves that could have been generated by events, such as supernova explosions, seen by the conventional observatories.

An international team's project using cosmic microwave background data inferred a Hubble constant of 67, substantially less than the 73 or 74 based on actually measuring the expansion (by analyzing how the light from distant supernova explosions has dimmed over time).

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.

«We believe that the Solar System received an extra slug of radioactive aluminum and iron from a nearby supernova explosion at the time Vesta was forming,» explains Russell.

Called a core collapse supernova explosion, one example of which is a Type II, these are a source of about a dozen major elements in people, including iron, calcium, phosphorus, potassium, sulfur and zinc.

So Fabio Governato, an astronomer at the University of Washington, and his colleagues simulated dwarf galaxy formation on supercomputers, this time with supernova explosions in the mix.

The team's simulations show, perhaps not surprisingly, that potentially habitable planets are more likely to remain so if they form in areas far from dense conglomerations of stars, where more supernova explosions occur.

Metals (elements heavier than hydrogen and helium) are created in the interiors of stars as they evolve and then released into surrounding gas through supernova explosions or stellar winds (often referred to as chemical evolution).

«Dying stars give newborn black holes a swift kick, study shows: Gravitational wave astronomy sheds light on supernova explosions.»

We first noted that in 1998, in the unexpected dimness of certain supernova explosions which told us they were further away than we expected.

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).

Elements heavier than iron are forged when the cores of massive stars collapse and trigger supernova explosions.

Interpreted in this way, SDSS1133 would represent the longest period of LBV eruptions ever observed, followed by a terminal supernova explosion whose light reached Earth in 2001.

Scientists have long suspected that a pulsar — a rapidly spinning, superdense neutron star — was born when a giant star ended its life in a cataclysmic supernova explosion observed in late summer of 1181, as suggested by Japanese and Chinese historical records.

However, radio waves penetrate the fog to reveal hot cradles of baby stars, ghostly outlines of ancient supernova explosions, and glowing bands that follow the paths of intense magnetic fields.

The Crab Nebula, the result of a bright supernova explosion seen by Chinese and other astronomers in the year 1054, is 6,500 light - years from Earth.

• Joseph Bramante, who suggested that dark matter could supply mass for supernova explosions, is at Notre Dame University in...

Because the study can not yet capture the details of individual stars and their planetary systems, the scientists must make approximations about how supernova explosions affect planets within those systems.

«This, we believe, will allow us to see «bubbles» in the galaxy's gas that have been inflated as the result of one or more supernova explosions,» Thilker added.

Such speeding neutron stars are a puzzle, because supernova explosions should be pretty symmetrical, making it unlikely that they would provide a strong kick in any one direction.

The astronomers hypothesize that energetic supernova explosions created fast - moving expanding bubbles of hot gas that collided with the surrounding cold gas of interstellar space, which in turn became compressed into thin shells.

The combined energy from numerous supernova explosions and black hole jets created powerful «winds» that blew these elements out of the galaxies, into intergalactic space.

SN 1987A is the closest observed supernova explosion since Johannes Kepler's observation of a supernova inside the Milky Way in 1604.

This process itself took several billion years of «cooking time» before supernovae explosions eventually dispersed them throughout space.

Another explanation holds that our universe is housed inside a black hole — the superdense stellar corpse left behind in the aftermath of certain supernovae explosions.

The Crab Nebula, the result of a bright supernova explosion seen by Chinese and other astronomers in the year 1054, is some 6,500 light - years from Earth.

These dense balls of nuclear matter, some 20 kilometers across, are the mortal remains of once - massive giant stars that ended their brief lives in titanic supernova explosions.

In addition, ultraviolet light from newborn massive stars as well as gas heating and ram pressure from supernova explosions blows much of a galaxy's gas away into intergalactic space.

«Adding gadolinium will make the detector vastly more sensitive, which will enable Super-K to begin collecting antineutrinos from supernova explosions anywhere within half the known universe.»

Strong turbulence caused by supernova explosions inside a dense molecular gas disk in the central region of a galaxy disturbs the stable motion of gas.

By ignoring those nuances, Wiltshire claims, cosmologists have misinterpreted the positions of the distant supernova explosions used to determine how quickly the universe is expanding.

«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.

The pictures have allowed astronomers to identify an elusive stellar corpse buried among filaments of gas left behind by a 2000 - year - old supernova explosion.

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 this star's companion truly is a neutron star, that would mean that the neutron star was once a giant, massive star that underwent its own supernova explosion in the past,» said Binder.

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.

MOUNT TREMBLANT, QUEBEC — Astronomers claim that they have found the strongest signs yet that an ordinary supernova explosion can set the stage for a powerful gamma ray burst to erupt weeks or months later.

Or perhaps the galactic downtown sparkled with hordes of new stars — a «starburst» — whose strong winds and supernova explosions cast material away.

Such stars end their lives in huge supernova explosions, ejecting their stellar materials outwards into space and leaving behind an extremely dense and compact object; this could either be a white dwarf, a neutron star or a black hole.

For his part, Paczy» nski favors a sort of super-energetic supernova explosion.

The key agents in this are cosmic rays, which are energetic particles coming from the interstellar media — they come from remnants of supernova explosions mainly.

BOSTON — Supernova explosions mark the violent end for many massive stars, but for some that end comes shortly after the beginning.

As one consequence, so - called gravitational waves should ripple outward at the speed of light from a variety of violent cosmic sources, including supernova explosions and merging black holes.

It seems, from remote supernova explosions, that a strange repulsive force is making the universe grow more quickly today.