Sentences with phrase «in supernova remnants»

Shock waves in supernova remnants are thought to be responsible for accelerating many of these particles.

He is now working to develop a computational model to describe the acceleration of particles in supernova remnants.

To make the discovery, Uchiyama and his team focused NASA's Chandra telescope on X-ray hot spots in a supernova remnant called RXJ1713.7 - 3946, located a few thousand light - years from Earth in the constellation Scorpius.

«This is the first time such rapid X-ray variability has been seen in a supernova remnant.»

The list of accomplishments is far too large to fit within one article, but they include: the first search for extraterrestrial intelligence; creation of the Drake equation; discovery of flat galactic rotation curves; first pulsar discovered in a supernova remnant; first organic polyatomic molecule detected in interstellar space; black hole detected at the center of the Milky Way; determination of the Tully - Fisher relationship; detection of the first interstellar anion; measurement of the most massive neutron star known; first high angular resolution image of the Sunyaev - Zel» Dovich Effect; discovery of only known millisecond pulsar in a stellar triple system; discovery of pebble - sized proto - planets in Orion, and the first detection of a chiral molecule in space.

NuSTAR, a high - energy X-ray observatory, has created the first map of radioactive material in a supernova remnant called Cassiopeia A, or Cas A, to reveal how shock waves likely tear massive dying stars apart, the researchers said in a study, published in the Feb. 20 issue of Nature.

This is the first map of radioactivity in a supernova remnant, the blown - out bits and pieces of a massive star that exploded.

Specifically, the NuStar will map radioactive material in supernovae remnants in an attempt to study the origins of cosmic rays and extreme physics surrounding collapsed stars.

Not exact matches

Cassiopeia A, or Cas A for short, is one of the most well studied supernova remnants in our galaxy.

In the two and a half decades since then the remnant of Supernova 1987A has continued to be a focus for researchers the world over, providing a wealth of information about one of the Universe's most extreme events.

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.

Astronomers suspect the object is associated with the W41 supernova remnant, located about 13,000 light - years away in the constellation Scutum toward the central part of our galaxy.

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.

The High Altitude Water Cherenkov (HAWC) observatory's map has also caught pulsars, supernova remnants, and other bizarre cosmic beasts in action.

But Michilli points out that in order to drive such strong magnetic fields, the supernova remnant would have to be a million times brighter than even the brightest remnant in the Milky Way, the Crab nebula (SN: 1/1/11, p. 11).

An initial image in April 2002 revealed four supernova remnants, a decade or two old, within a small volume of space just 350 light - years across.

But not only the spatial distributions of titanium and iron resemble those in Cas A. Also the total amounts of these elements, their expansion velocities, and the velocity of the neutron star are in amazing agreement with those of Cas A. «This ability to reproduce basic properties of the observations impressively confirms that Cas A may be the remnant of a neutrino - driven supernova with its violent gas motions around the nascent neutron star,» concludes H. - Thomas Janka.

Using elaborate computer simulations, a team of researchers from RIKEN in Japan and the Max Planck Institute for Astrophysics (MPA) were able to explain the recently measured spatial distributions of radioactive titanium and nickel in Cassiopeia A, a roughly 340 year old gas remnant of a nearby supernova.

CRAB NEBULA This tortured cloud is the remnant of a supernova explosion that was brilliantly visible in 1054.

The process is similar to what lights household fluorescent bulbs, except that the supernova remnant glows in X-rays rather than visible light.

The team plans to look for evidence of similar reverse shock waves in other young supernova remnants.

Young supernova remnants such as Cassiopeia A are among the most beautiful objects in the X-ray sky.

FIFTY years ago, on 20 May 1964, Arno Penzias and Robert Wilson of the Bell Telephone Laboratories in Holmdel, New Jersey, recorded their first astronomical measurements of microwave radiation from the supernova remnant Cassiopeia A.

In the case of Tycho's supernova remnant, astronomers have discovered that a reverse shock wave racing inward at Mach 1000 (1000 times the speed of sound) is heating the remnant and causing it to emit X-ray light.

So when NASA launched a gamma - ray telescope into space in 2008, astronomers figured the high - energy radiation it detected would point the way to easily identifiable supernova remnants, black holes, and other extroverted objects.

The Crab Nebula (catalogue designations M1, NGC 1952) is a supernova remnant in the constellation of Taurus.

Such grains originated more than 4.6 billion years ago in the ashes of Type II supernovae, typified here (upper left) by a Hubble Space Telescope image of the Crab Nebula, the remnant of a supernova explosion in 1054.

The highest energy gamma rays originate in the graveyards of big stars, such as the spinning pulsar remnants of supernovae.

VLF waves might reveal «fossil» galaxies that were once highly active; they could also be used to map ancient supernova remnants in the Milky Way.

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

When astrophysicist Robert Petre of NASA's Goddard Space Flight Center and his colleagues analyzed the ASCA data, they found that most of the Lupus supernova remnant had spikes in its X-ray spectrum — the radiation peaked at a few wavelengths.

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.

Its telescopes installed in Namibia have studied populations of pulsar wind nebulae and supernova remnants, as well as microquasars, never before detected in gamma rays.

They pointed the telescopes at the remnant of a supernova about 168,000 light - years away in the constellation Dorado, whose light first arrived at Earth in 1987.

The supernova remnant's grains collectively weigh in at about a quarter of the sun's mass, Indebetouw reported January 6 at a meeting of the American Astronomical Society.

Neutron stars are the remnants of supernovae, in which a massive star is crushed into a sphere just kilometres across.

Astronomers don't think supernova remnants are capable of powering cosmic rays beyond the PeV range, so the knee may be shaped in part by the drop - off of their cosmic rays in this region.

Now Funk and colleagues have used the Fermi Gamma Ray Space Telescope to observe the two brightest supernova remnants in the galaxy.

In 2013, it captured the first images of the high - energy cosmos, revealing two black holes and a supernova remnant.

One scenario is the «explosion model» in which an expanding gas shell of the supernova remnant passes by a static black hole.

A research team led by Masaya Yamada, a graduate student at Keio University, Japan, and Tomoharu Oka, a professor at Keio University, used the ASTE Telescope in Chile and the 45 - m Radio Telescope at Nobeyama Radio Observatory, both operated by the National Astronomical Observatory of Japan, to observe molecular clouds around the supernova remnant W44, located 10,000 light - years away from us.

That should translate into about 60 supernova remnants in the galaxy that are under 2000 years old, after which they begin to fade away and become undetectable.

The circular rings in the center - left of the image are supernova remnants caught in the strong magnetic field of the galaxy's core.

Both the pulsar and the supernova remnant, which lie 4600 light years from Earth, were likely created in the same stellar explosion.

«We are now fully confident that one of the most popular supernova remnants detected in our galaxy was produced by an ordinary type Ia supernova that was first detected more than 400 years ago,» write Andrea Pastorello of Queen's University Belfast and Ferdinando Patat of the European Southern Observatory in Germany in a commentary on the study.

The instruments are expected to reveal details about gases trapped in galaxy clusters and wafting through supernova remnants as well as the turbulent streams of material spiraling away from black holes.

Supernovae are also the birth places of neutron stars, those extraordinarily exotic, compact stellar remnants, in which about 1.5 times the mass of our Sun is compressed to a sphere with the diameter of Munich.

A firmer line of evidence for supernovae in Carina came from another researcher's 2009 identification of an ultradense stellar remnant called a neutron star there.

Janka's group recently won a five - year, $ 4 million grant to give the 3 - D model higher resolution and to push the simulation «backward in time, and also forward, linking the model to observed supernova remnants,» he says.

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