Sentences with phrase «gas outflows»

He helped expedite the 1997 Kyoto Protocol, an universal settlement intended to control nursery gas outflows.

This process is likely stopped early on by powerful gas outflows from supernova explosions, stellar winds and possibly even from the central supermassive black hole.

After a short timescale of less than 1 billion years the star formation has been quenched by powerful gas outflows.»

Also, the radio observation results of molecular line emission of methanol revealed in vivid detail an hourglass structure created by gas outflows spreading outward while thrusting the ambient gas cloud away.

An international team led by a researcher from Hiroshima University has succeeded in revealing the detailed structure of a massive ionized gas outflow streaming from the starburst galaxy NGC 6240.

«We see some gas outflowing from this galaxy at millions of miles per hour, and this gas may have been blown away by the powerful radiation from the newly formed stars,» said Ryan Hickox, an astrophysicist at Dartmouth College, Hanover, N.H., and a co-author on the study.

The gas outflow driven by a supermassive black hole at the galactic center recently has become the focus of attention as it possibly is playing a key role in the co-evolution of galaxies and black holes.

There have been many reports saying that the ionized gas outflow driven by the accretion power of a supermassive black hole has a great impact on surrounding molecular gas (e.g., * 2,3).

This indicates that a strong ionized gas outflow launched from the supermassive black hole in WISE1029 neither significantly affect the surrounding molecular gas nor the star formation.

Paper and research team These observation results were published as Toba et al. «No sign of strong molecular gas outflow in an infrared - bright dust - obscured galaxy with strong ionized - gas outflow» in the Astrophysical Journal in December 2017.

WISE1029 is known as an extreme case in terms of ionized gas outflow, and this particular factor has motivated the researchers to see what happens to its molecular gas.

Figure 3: A schematic view of the fact that an ionized gas outflow (green) driven by the central supermassive black hole does not affect the star formation of its host galaxy.

The team has made a new breakthrough observation with ALMA, finding a protostellar jet to be spinning, convincingly for the first time [3] A research team led by Tomoya Hirota at the National Astronomical Observatory of Japan obtained clear evidence of rotation in the gas outflow from a massive baby star Orion KL Source I with ALMA.

The protostar is surrounded by the large hot gas cloud and emanates bipolar gas outflow.

Metal content in star - forming galaxies is the result of a complex interplay between gas coming into the galaxy, star formation in the galaxy, and gas outflowing from the galaxy in the cosmological context.

A bipolar gas outflow is ejected from the protostar (blue).

Not exact matches

Omar said Malaysia was suffering particularly because it was an emerging market at a time of capital outflows, it was a net exporter of oil and gas at a time of a significant drop in prices, and it was perceived to be badly affected by the Chinese slowdown as China was its largest trading partner.

The difference in gaseous metallicity between protoclusters and general fields suggests that star - formation histories and / or gas inflow / outflow processes should be different in the protocluster regions.

Another possibility is that the surrounding high - pressure, inter-cluster medium prevents outflowing gas from escaping from the galaxies.

Observations of the dust outflow show bound and unbound grains and imply a comparatively high dust - to - gas ratio of 4.

Since the hourglass structure made by the distribution of CH3OH traces the contour of the observed CO outflow, CH3OH is assumed to have been produced by the interaction with the ambient gas which was pushed away by the outflow from the protostar, resulting in the increase of temperature and consequent transition into gas.

Although it was unknown what is responsible for the maser source in this object, the observation results this time suggests that the maser source is excited by the shock influence between a high - velocity outflow and the ambient gas.

Two outflows of gas spurt from the central part in the vertical and horizontal directions respectively while pushing the ambient gas away, which makes a balloon - like structure.

«We have traced the outflows of other galaxies, but we have never been able to actually map the motion of the gas,» Bordoloi said.

The cooler gas seen by COS could be interstellar gas from our galaxy's disk that is being swept up and entrained into the super-hot outflow.

Even more remarkably, stars in the throes of birth also seem to exhale giant, peanut - shaped bubbles of gas, called outflows, 100 times more massive than our sun.

As the jets plowed through the cloud surrounding the fetal star, perhaps they swept up molecules of gas or pulled the gas along, piling it up into vast peanut - shaped outflows.

They came up with a maximum flow of 0.23 cubic meters per second, or 19,872,000 liters or 125,000 barrels daily, but this is a bulk outflow that includes mud, water, and gas as well as oil.

A leading theory for this discrepancy hinges on the fountain - like outflows of gas observed exiting some galaxies.

Scientists think sudden, violent outflows of the gas from the sea floor might have spiked the planet's temperature about 55 million years ago, and they think the gulf spill affords them the unique opportunity to study an analog in real time.

The theory suggests that clouds of cold gas condense out of the hot outflow as they expand and cool.

We wanted to see, if you took a realistic cloud of cold gas and hit it with a hot, fast - flowing, supernova - driven outflow, if you could accelerate that cold material to velocities like what are observed,» Robertson said.

Pre-planetary nebulae shoot out two jets of gas and dust, the latter forming in the jets as the outflows expand and cool.

Illustration of the outflow (red) and gas flowing in to the quasar in the centre (blue).

Previously, astronomers have used x-ray telescopes to observe strong winds very near the massive black holes at galactic centers (artist's concept, inset) and infrared wavelengths to detect the vast outflows of cool gas (bluish haze in artist's concept, main image) from such galaxies as a whole, but they've never done so in the same galaxy.

«It is the first time that we have seen outflowing cold gas moving at these large speeds at such large distances from the supermassive black hole,» said Claudia Cicone, a PhD student at Cambridge's Cavendish Laboratory and Kavli Institute for Cosmology, and lead author on the first of the two papers.

And the birth of small, modular nuclear reactors — which can be built at lower cost and produce no greenhouse gas emissions — could play a significant role in helping to balance energy outflows from renewable sources.

The black holes that we can observe directly through their radiant emission are mostly in a configuration where gas swirls around the black hole in the form of an accretion disk and that accretion disk — most of the mass is going to be in an ionized form, and then some of that gas gets expelled from the environment around the black hole, while it is still outside the black hole, it gets squirted out in the form of an outflow, a wind like the solar wind and then [a] much faster, collimated outflow called a jet.

In some active galactic nuclei, you have a black hole and accretion disk and the majority of the power is associated with these outflowing jets, far more than is associated with the radiant energy that is emitted by the accretion disk and the hot gas surrounding it.

Combining infrared data from the Hale Telescope at Palomar Observatory and the Keck 2 Telescope in Hawaii, researchers have characterized the remarkably symmetrical «Red Square» nebula as a central star (MWC 922) illuminating twin cones of outflowing gas.

Another possible mechanism powering the Lyman - alpha emissions is shock heating by a powerful outflow of gas from the AGN.

«Both the star clusters in Hanny's Voorwerp and the expanding bubble in the galaxy's core hint at a strong outflow of gas, fostered by a quasar,» says Keel.

In the same period, supermassive black holes in the centers of galaxies devoured large amounts of the gas around them, producing strong jets and outflows.

The team also succeeded in explaining, with a theoretical model, that the actual changes (balance of inflow and outflow) in gas levels they observed were the result of the increasing amount of gas falling into the supermassive black holes within the gas disks enhanced by strong turbulence generated by supernova explosions (an activity associated with star formation) when a star inside the dense gas disks dies.

The intense radiation and strong outflows from these massive stars caused nearby gas to dissipate.

The SDSS spectrum indicates that strong ionized gas is outflowing toward us from WISE1029.

This NASA Hubble Wide Field Camera 2 image shows impressive walls of compressed gas, laced with trailing strands and bubbling outflows.

In particular, one DOG (WISE1029 +0501, hereafter WISE1029) is outflowing gas ionized by the strong radiation from its supermassive black hole.

Combining two results, gas jets and outflows have a crucial role in removing the rotational momentum both in low - mass and high - mass star formation processes..

«This giant gas bubble contains about a million times more mass than the Sun and the energy powering its outflow is equal to about 100 supernova explosions,» said Yurii Pidopryhora, of the National Radio Astronomy Observatory (NRAO) and Ohio University.