Sentences with phrase «outer regions»

These jets, which astronomers can detect in radio wavelengths, could also heat up gas in outer regions and shut down star formation there.
And, because the 300 - foot could record the speed of the gas, it saw a galaxy's outer regions spinning just about as fast as their middle regions.
According to the geochemist, comets originate in the cool outer regions of the solar system where volatile water and carbon compounds condensed into ice.
The detection of methanol also in the colder outer regions of the disc shows that it is able to escape off the grains at temperatures much lower than its sublimation temperature, necessary to trigger thermal desorption.
The sun formed at the hot and dense centre of this disc, while the planets grew by accretion in the cooler outer regions.
In this striking image created by researcher Matthias Rempel and collaborators, the highly complex filaments that flow between a sunspot's dark center and lighter outer region have been produced in exquisite detail by simulating the magnetic forces at play using a supercomputer at the National Center for Atmospheric Research (NCAR).
«Chemistry professor explores outer regions of periodic table.»
While other neuroscientists have used functional magnetic resonance imaging (fMRI) and electroencephelography (EEG) to record activity in the thinking brain, the UC Berkeley scientists employed a much more precise technique, electrocorticograhy (ECoG), which records from several hundred electrodes placed on the brain surface and detects activity in the thin outer region, the cortex, where thinking occurs.
It's 8 billion miles from the sun — Pluto is 3.6 billion — and in 2004 we had no idea that things in that very outer region of the solar system existed.
Theoretical work indicates that such planets can only form in the icy outer regions of the protoplanetary disk in which both the central star and its surrounding planets are born.
Imagine that such a black hole is orbited by a wide, cold disk of material — like the rings of Saturn but larger than our entire solar system — and that this disk possesses an almost transparent outer region and a denser inner region.
Such a disk could cause the long - term dimming of Boyajian's star as its nearly invisible outer region, followed by its dense inner region, drifted across our line of sight during the past 100 years.
In addition to Pluto, this area, the unexplored outer region of the solar system, potentially includes thousands of similar icy, rocky small planets.
«Some of the same processes that take place in deep space may occur in these icy bodies in the supercold outer regions of the solar system,» Allamandola says.
This results in a steady buildup of a helium - rich core, surrounded by a hydrogen - rich outer region.
In human and nonhuman primates, however, the SVZ has a massively expanded outer region, known as the outer subventricular zone (OSVZ).
Such early influences no doubt helped to form the deliciously ghoulish and artfully warped sensibility of a director who was to become known for his forays into the bizarre outer regions of mainstream celluloid.
Forming in the system's colder outer regions, where volatile compounds such as water and carbon dioxide freeze out, makes it possible that the planets incorporated those ices and carried them along to a warmer place where they could melt, evaporate, and become oceans and atmospheres.
Analyzing these echoes, scientists found a marked difference in the structure of iron crystals in the inner and outer regions of the inner core.
This showed there is around one kilogram of plastic per square kilometre in the outer regions, rising to more than 100kg / km2 near the centre.
«Once these bodies are in the disk's outer regions, they are safe and able to grow into planetesimals.»
Brains of teenage girls exposed to high levels of family stress when they were toddlers showed reduced connections between the amygdala, which is also known for processing fear and emotions, and the ventromedial prefrontal cortex, an outer region responsible for emotional regulation.
As a result, the outer regions with relatively poor metallicity are stripped.
«During the merger, the outer regions of this dwarf galaxy were stripped.»
If matter in NGC 891 were distributed the same way the galaxy's starlight is — concentrated toward the center, trailing off to nothing at the edge — the orbital velocities should decline substantially in the outer regions.
The only way these outer regions could remain intact was if they were bound together by the gravitational embrace of a much larger halo of invisible material, five to 10 times as massive as the visible galaxy.
Stars in the outer regions of some far - off galaxies move more slowly than stars closer to the center, indicating a lack of dark matter, astronomer Reinhard Genzel and colleagues report online March 15 in Nature.
Astronomers have noted that such streams of stars are relatively common in the outer regions of spiral galaxies, a phenomenon that has been observed on the outskirts of the Milky Way as well as around the nearby Andromeda galaxy.
Cholera patterns emerged, showing a higher incidence in more densely populated areas in the city's center compared to its outer regions in El Niño conditions.
Today's best telescopes can penetrate only to the nearest part of the solar system's outer regions, known as the Kuiper belt.
One of the most harmful phenomena these investigations have discovered is the drift instability, which leads to small - scale turbulence of the plasma that efficiently transports heat and particles by convection to the outer regions, where they are lost and unable to contribute to nuclear fusion.
About 1 percent of these ice - infused boulders, known as C - type asteroids, were dropped into the outer regions of the asteroid belt.
Dr Michele Bannister said: «We've discovered that this is a planetesimal with a well - baked crust that looks a lot like the tiniest worlds in the outer regions of our solar system, has a greyish / red surface and is highly elongated, probably about the size and shape of the Gherkin skyscraper in London.
«We are saying, if you have nothing else and can't survey the outer regions of the country, this creates an option to spend $ 10,000 and get interim estimates of what things look like, and to construct a higher - resolution estimate of the geographic distribution of wealth,» he said.
It was discovered in the 1970s when astronomer Vera Rubin showed that stars in the outer regions of spiral galaxies, far from the center, were moving faster than they should be.
Balls that go all the way down the center of the well would eventually get blown into the outer region where they'd work their magic, he says.
Energy released from the collisions of particles within the hot core travels to the outer part through conduction, causing pressure that drives much of the gas in the outer region beyond the reach of the black hole.
«In the early days of the solar system, there may have been many hundreds of protoplanets drifting around in the system's outer regions,» he says.
Comets are dirty chunks of ice in the outer regions of the solar system left over from the formation of the planets.
New Horizons» flyby of the dwarf planet and its five known moons is providing an up - close introduction to the solar system's Kuiper Belt, an outer region populated by icy objects ranging in size from boulders to dwarf planets.
Open clusters like NGC 2367 are a common sight in spiral galaxies like the Milky Way, and tend to form in their host's outer regions.
Scientists at NCAR's High Altitude Observatory used a supercomputer to create this 3 - D, high - resolution image of a sunspot's dark central region, called the umbra, and its outer region, called the penumbra.
They show that there are a total of 58 billion dwarf stars, of which seven per cent reside in the outer regions of our Galaxy.
Gut microbiota that live in the outer regions of the mucus and remain a safe distance from epithelial cells provide a benefit to the host, but Chassaing and Gewirtz hypothesize that microbiota that encroach upon host cells drive chronic inflammation that interferes with the normal action of insulin, promoting type 2 diabetes.
In the 1990s, thinking about Pluto shifted again with the realization that it is just one member of the Kuiper Belt, a swarm of thousands (if not millions) of tiny icy objects that circle the sun in the outer regions of the solar system.
«Currently objects in these outer regions are frozen in our own solar system, and Europa and Enceladus — moons orbiting Jupiter and Saturn — are icy for now.»
This showed there is 1 kilogram of plastic per square kilometre in outer regions, rising to over 100...
a b c d e f g h i j k l m n o p q r s t u v w x y z