Sentences with phrase «of accreting»

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.

Her research is focused on using radio observations of novae and symbiotic systems to examine the evolution of accreting dwarf galaxies among other things.

Having thus established a target list, we will use the multi-object IR spectrograph FLAMINGOS - 2 on Gemini - South to carry out a spectroscopic survey of the candidate counterparts, to search for emission line signatures which are a hallmark of accreting binaries.

The paper reveals a close relationship between the way in which different types of accreting objects vary in brightness over time.

So these are not sort of small players, these are major parts of the energy budget of an accreting black hole and by extension, they have an important impact on their environment; and the jets associated with accreting black holes and nuclei galaxies inflate giant lobes of plasma outside the galaxy and these heat the surrounding gas, they affect the fuel supply, they stimulate star formation, they in fact stimulate galaxy formation.

Astrophysicists at Goethe University Frankfurt, and collaborators in the ERC - funded project BlackHoleCam in Bonn and Nijmegen have created and compared self - consistent and realistic images of the shadow of an accreting supermassive black hole — such as the black - hole candidate Sagittarius A * (Sgr A *) in the heart of our galaxy — both in general relativity and in a different theory of gravity.

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

In Alaska, the shape of the accreted terranes generally controls the location of the Denali fault and the mountains that form along it, especially at the bends in the trace of the fault.

The Russians shared samples of the accreted ice with their French and American collaborators, who came up with wildly contrasting findings.

«Every centimeter of accreted ice represents a different zone of the lake.»

In this illustration a black hole emits part of the accreted matter in the form of energetic radiation (blue), without slowing down star formation within the host galaxy (purple regions).

Unlike video game adaptations like the Tomb Raider series or Assassins Creed, which have to contend with years of accreted mythos and complicated character - building, Rampage was always going to be on pretty safe ground, as long as it featured a giant ape, lizard, and wolf pounding some buildings to powder.

Not exact matches

«Money being reinvested into a business is, by definition, not immediately accreting to shareholders, which we think may be a problem given high consensus earnings growth expectations,» says Castagno, adding that the companies most at risk, based on elevated expectations and likelihood of reinvestment, are those in Consumer Staples, Financials, Health Care, and Industrials.

Some of the lowermost overlying Proterozoic metasediments were accreted to these domes during amphibolite grade regional metamorphism (5 to 8 kb and 550 ° to 630 ° C) at 1870 to 1800 Myr.

They do so by association of ideas, by the accreted memories of our race enwrapping connotation around a word, a name — say the name Jerusalem, or the name Sion:

NONE, The Earth as an accreted celestial body of roughly the same size as exists today, was formed roughly 4.567 billion years ago as concluded by current (2011) scientific evidence.

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.

Because of the movement of sand along the coast, Sampsons Island has accreted greatly over the past several decades.

The power of chiefs from the split region has been accreted while that of others from the other 9 regions has been diluted.

Otherwise we'll be left with a system in which power accretes to those with wads of cash, who can buy legislators» affections legally, with fat donations to campaign accounts, or illegally, with donations directly to legislators» wallets.

«We have now finally shown that this idea of clusters forming new stars with accreted gas might actually work,» de Grijs said, «and not just for the three clusters we observed for this study, but possibly for a whole slew of them.»

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.

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

Vesta and most other asteroids, the theory goes, accreted quickly and accumulated a lot of aluminum 26 that had not yet decayed.

When terranes collide and accrete, they form a suture, also known as a collision zone, which is made up of weak, crushed rock.

As a result of plate tectonics, Alaska is an amalgamation of terranes that have collided with the North American craton and have accreted to become part of North America.

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.

Quasar An active galactic nucleus derives its high energy from gas accreting on the center of a supermassive black hole.

The Russians held off drilling into the accreted ice for seven years, while they went through the long process of preparing a comprehensive environmental evaluation detailing their drilling plans and inviting comment, as required by the Antarctic Treaty, an environmental - protection agreement signed by nations with a presence in the Antarctic.

An interdisciplinary team of UvA physicists and astronomers proposed to search for primordial black holes in our galaxy by studying the X-ray and radio emission that these objects would produce as they wander through the galaxy and accrete gas from the interstellar medium.

Apparently the drillers had hit meltwater from the top of Lake Vostok that had slowly refrozen and accreted onto the bottom of the overlying glacial ice sheet.

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.

As mass is accreted into one of the disks it loses gravitational energy.

The two dense peaks will continue to accrete from the surrounding cold gas reservoir over a period of ~ 105 years and will likely form a binary star system.

[3] Type Ia Supernovae occur when an accreting white dwarf in a binary star system slowly gains mass from its companion until it reaches a limit that triggers the nuclear fusion of carbon.

Gaining a better understanding of how much mass black holes accrete may therefore provide new insight on how galaxies pack on the pounds, astronomers note.

Astrophysicist and co-author Lars Eric Hernquist of the Harvard - Smithsonian Center for Astrophysics in Cambridge, Massachusetts, says that a protostar could grow quickly, accreting about 10 solar masses within 1000 years, and reaching its full size of 100 or more times the sun's mass in as little as 10,000 years.

Only a tiny amount of gas is accreting onto it.

«We think that there is a dormant black hole there that has accreted a lump of matter — probably a star that has fallen into it,» says astrophysicist Neil Gehrels, the lead scientist for SWIFT at NASA's Goddard Space Flight Center in Greenbelt, Maryland.

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.

Scientists can detect black holes by looking at the motion of stars and gas nearby as well as matter accreted from its surroundings.

Quasars are tremendously bright objects composed of enormous black holes accreting matter at the centers of massive galaxies.

Bañados was looking in particular for quasars — some of the brightest objects in the universe, that consist of a supermassive black hole surrounded by swirling, accreting disks of matter.

In 2016, they found several candidates, which seem to have formed through direct collapse and are now accreting matter from clouds of gas.

With a coupled view of physics and chemistry, it has also succeeded in highlighting the outermost part of the disk where the gas is still accreting.

In the May 2018 Monthly Notices of the Royal Astronomical Society, Schleicher and colleagues show that such clusters also could create massive black hole seeds, as newly formed stars accrete gas left over in the cluster.

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

Along with Harrison and Walton, additional Caltech authors on the paper, «An Ultraluminous X-ray Source Powered by An Accreting Neutron Star,» are postdoctoral scholars Felix Fürst, and Shriharsh Tendulkar; research scientists Brian W. Grefenstette and Vikram Rana; and Shri Kulkarni, the John D. and Catherine T. MacArthur Professor of Astronomy and Planetary Science and director of the Caltech Optical Observatories.

With either scenario, water must accrete to the inner planets within the first ca. 10 million years of solar system formation.

The standard path to type Ia supernovae, the study's authors wrote, should have produced 30 to 50 times the x-rays observed, indicating that accreting white dwarfs account for less than 5 percent of the explosions.