Sentences with phrase «accreting material»

The star may have «spun up» by accreting material from a binary companion star, according to the scientists involved.

The latest research shows that the relatively small OTS44 has a disk containing more than 10 times the mass of Earth, and that it is actively accreting material.

«Astrophysicists can model the accreting material to some extent, but it is unclear how gas in the accretion flow migrates from an orbit at a large radius to one near the

«Astrophysicists can model the accreting material to some extent, but it is unclear how gas in the accretion flow migrates from an orbit at a large radius to one near the [event] horizon...» Avery E. Broderick and Abraham Loeb, p. 44.

«At least in two of the planemos we see possible evidence that they are accreting material from their disk,» Jayawardhana adds.

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

He was among the first to show that young stars with ages of only 1 million years accrete material from surrounding disks of gas and dust.

It drives a powerful bipolar jet and thus must accrete material efficiently.

Ceres probably formed close to its current position, but accreted material from further out, Küppers said.

Artist's impression of the heart of a quasar, at which a supermassive black hole grows as it accretes material.

While the presence of the calcium - carbonate is still in question, the paper shows strong evidence that the accreted material is almost certainly coming from the outer layers of a planet - like object and that white dwarf stars hold promise in informing on the structure of planets outside of the Solar system.

As the white dwarf accretes material from the nearby star, it's possible that could explode as a type la supernova.

This accreted material powers symbiotic activity, including occasional eruptions and jets.

Not exact matches

As that material drifted toward Sampsons Island and accreted, the number of pairs of all species declined again, and productivity also declined as the smaller nesting areas became more vulnerable to predators and storm overwash.

Material is pulled from surrounding filaments and accreted onto cores dotted along the cloud structure, converting gravitational potential energy into kinetic energy in the process.

Plunkett said the technology allows researchers to determine details about the star formation process, such as how often material is accreted or ejected, on time scales of a few hundred years.

Pasham says tidal disruption flares are a potential window into the universe's many «hidden» black holes, which are not actively accreting, or feeding on material.

This abundance is lower than model estimates of ultraviolet (UV) degradation of accreted interplanetary dust particles (IDP's) or carbonaceous chondrite material.

These, the best such observations so far, reveal that the behaviour of the material being accreted onto the black hole is very stable, and — so far — has not been disrupted by the arrival of material from the G2cloud.

The jets are thought to be produced by the ejection of material that is first pulled and acquired, or «accreted,» from one object to the other and swirled into a so - called accretion disk.

Over the course of about 100 million years, most of the material in that nebulous cloud accreted into the existing eight planets — four rocky (including Earth) and four gaseous.

Infalling material smashes into the star, creating a shock wave and heating the accreting gas to temperatures greater than 5 million degrees Fahrenheit.

It is about 10 million years old, and is still accreting gas from a surrounding disk of material.

Perhaps like all galaxies it started out as a compact object but failed to accrete more material to grow in size to form a magnificent pinwheel - shaped galaxy.

In this theory material from the companion star is accreted onto the white dwarf until its mass reaches a limit, leading to a dramatic explosion.

«The presence of ammonia - bearing species suggests that Ceres is composed of material accreted in an environment where ammonia and nitrogen were abundant.

According to Maria Cristina De Sanctis, lead author of the new study, at the National Institute of Astrophysics in Rome: «The presence of ammonia - bearing species suggests that Ceres is composed of material accreted in an environment where ammonia and nitrogen were abundant.

I apply numerical models to investigate the physical and chemical evolution of planetary materials, ranging from the small dust grains suspended in protoplanetary disks to the many kilometer - scale objects which accrete together to form planets.

After the materials are sufficiently accreted and the accretion disk gets hotter and emits intense electromagnetic waves.

Some of the material that flowed toward the black hole later accreted to create stars.

Building on past observations of the white dwarf called SDSSJ1043 +0855 (the dead core of a star that originally was a few times the mass of the Sun), which has been known to be gobbling up rocky material in its orbit for almost a decade, the team used Keck Observatory's HIRES instrument fitted to the 10 - meter Keck I telescope as well as data from the Hubble Space Telescope to measure and characterize the material being accreted by the star.

In addition to extending a relatively new method of determining the chemical composition of planets to examine their internal structure, the team found that the rocky material being accreted by the star could be comprised of minerals that are typically associated with marine life processes here on Earth.

«Spectroscopic observations of the white dwarf allowed us to measure the abundances of the rocky material as it is being accreted and filtered through the star's atmosphere in real time,» Melis said.

«We can see the material that used to make up this planet being accreted and replenished on a daily timescale.

Enrico Ramirez - Ruiz studies stellar explosions, gamma - ray bursts and how material accretes onto dense objects such as black holes and neutron stars.

If the white dwarf accretes enough material to reach the Chandrasekhar limit, the maximum mass of a stable white dwarf star (1.4 solar mass), it will likely explode as a Type Ia supernova.

Colliding at speeds up to 22,000 miles per hour (36,000 kilometers per hour), such a collision may have stripped most of the rocky mantle from the protoplanet that became Mercury with its iron - rich core, while a Mars - size protoplanet struck the early Earth off - center and created a spray of mostly mantle material that later accreted to form the Moon.

If rate of accretion depends on the mass of the accreting body, then the rate of the increase in mass of that accreting body increases quickly until all available material is taken.