Sentences with phrase «radiation from stars in»

The solution is for the probe's sail to be redeployed upon arrival so that the spacecraft would be optimally decelerated by the incoming radiation from the stars in the Alpha Centauri system.

Not exact matches

Either they necessitate a deceptive «God», e.g. creating starlight «in transit» which means that for some light the star that supposedly sent said light would never have actually existed, or they would cause effect that should be evident but are not, e.g. temporarily fast starlight would effectively cook many things, such as life on earth, if the required light (and attendant gamma radiation) were compressed into a significantly shorter time frame (think of the radiation from the apparent 13 billion years of the universe arriving at the same time, or even over a 1000 years).

In the hopes of seeing the gas clouds from which the first stars arose, Loeb has devoted much of the past decade to a new field called 21 - centimeter cosmology, a branch of radio astronomy that focuses on identifying electromagnetic radiation that started out with a wavelength of 21 centimeters.

Taken with the orbiting Chandra Observatory, it shows the hottest, most violent objects in the galaxy: black holes gobbling down matter, gas heated to millions of degrees by dense, whirling neutron stars, and the high - energy radiation from stars that have exploded, sending out vast amounts of material that slam into surrounding gas, creating shock waves that heat the gas tremendously, generating X-rays.

Larger Bok globules in quieter locations often collapse to form new stars but the ones in this picture are under fierce bombardment from the ultraviolet radiation from nearby hot young stars.

These opaque blobs resemble drops of ink floating in a strawberry cocktail, their whimsical shapes sculpted by powerful radiation coming from the nearby brilliant young stars.

Emission nebulae like IC 2944 are composed mostly of hydrogen gas that glows in a distinctive shade of red, due to the intense radiation from the many brilliant newborn stars.

«The evidence that these new gravitational waves are from merging neutron stars has been captured, for the first time, by observatories on Earth and in orbit that detect electromagnetic radiation, including visible light and other wavelengths,» said Chad Hanna, assistant professor of physics and of astronomy & astrophysics and Freed Early Career Professor at Penn State.

Taken with Juno's star - tracking navigation camera, the shot reveals that «heaven looks the same to us from Jupiter,» said Heidi Becker, leader of Juno's radiation monitoring team at NASA's Jet Propulsion Laboratory in Pasadena, Calif..

But if that was the case they should have annihilated in a blaze of radiation, leaving nothing from which to make the stars and galaxies.

Without a magnetic field, the planets would be bathed in harmful radiation, and their atmospheres would be eroded away by particles streaming from their stars.

This image from the Wide Field Imager (WFI) on the MPG / ESO 2.2 - metre telescope at La Silla, shows the cluster and the gas clouds surrounding it, which glow in orange and red hues due to the radiation coming from nearby hot stars.

In a 2008 study, Haiman and his colleagues hypothesized that radiation from a massive neighboring galaxy could split molecular hydrogen into atomic hydrogen and cause the nascent black hole and its host galaxy to collapse rather than spawn new clusters of stars.

The massive black hole shown at left in this drawing is able to rapidly grow as intense radiation from a galaxy nearby shuts down star - formation in its host galaxy.

«While these systems are interesting, they are dark in any other form of radiation and relatively little can be understood from them compared to binary neutron star systems.

But the high - energy radiation from the source has shown no sign of dying down, which suggests that astronomers may have caught a star in the process of being ripped to shreds by a black hole.

Temperatures in the low stratosphere rise because of molecules absorbing radiation from the star (right).

New observations show that tiny galaxies in the early universe could have triggered the epoch of reionization — a period when harsh radiation tore apart hydrogen atoms — which astronomers consider key to understanding how stars and galaxies arose from the universe's early dark void.

In low - mass clusters, feedback from the jets may play the same disruptive role as do winds and UV radiation from big stars in high - mass clusterIn low - mass clusters, feedback from the jets may play the same disruptive role as do winds and UV radiation from big stars in high - mass clusterin high - mass clusters.

As more stars and galaxies formed, they eventually generated enough radiation to flip hydrogen from neutral, a state in which hydrogen's electrons are bound to their nucleus, to ionized, in which the electrons are set free to recombine at random.

Intense radiation from the brilliant central stars is causing hydrogen in the nebulae to glow pink.

In a very massive star, photon radiation — the outward flux of photons that is generated due to the star's very high interior temperatures — pushes gas from the star outward in opposition to the gravitational force that pulls the gas back iIn a very massive star, photon radiation — the outward flux of photons that is generated due to the star's very high interior temperatures — pushes gas from the star outward in opposition to the gravitational force that pulls the gas back iin opposition to the gravitational force that pulls the gas back inin.

This radiation comes from established stars, rather than newborn stars that blaze furiously in ultraviolet light.

Astronomers have known for about a decade ultraviolet and X-ray radiation from the main star in HD 189733 are evaporating the atmosphere of HD 189733b over time.

In the past 2 decades, astronomers have detected infrared radiation from debris disks around several stars.

Material falling from the exploded star onto the compact companion would have been heated and blasted back into space in two narrow jets, along with a beam of radiation.

According to new observations from NASAs Hubble Space Telescope of a star - forming region in a nearby galaxy known as the Large Magellanic Cloud, intense radiation and powerful winds from massive, ultrabright baby stars have sculpted their environment, carving a large cavity in their natal nebula, N83B.

The team used several hundred thousand compute hours at NERSC to produce a series of 2D and 3D simulations that helped them examine the role of dark matter halo photoevaporation — where energetic radiation ionizes gas and causes it to disperse away from the halo — played not just in the early formation of stars but also the assembly of later galaxies.

The formation of a stratosphere layer in a planet's atmosphere is attributed to «sunscreen» - like molecules, which absorb UV and visible radiation coming from the star and then release that energy as heat.

They combined observations in the visible and the near infrared from the Hubble Space Telescope with radio observations from the Very Large Array and the Submillimeter Array to explore the effect of the turbulence, stellar radiation, and magnetic field on massive star formation in the galaxy's nuclear ring.

Over time, galaxies will become isolated from their neighbors; stars will wink out; black holes will evaporate quantum mechanically into radiation; even that radiation will be diluted in a sea of space.

That's where the Lyman - alpha radiation comes from: the glowing hydrogen gas that's being lit up by the young stars that are in these building blocks.

In follow - up observations from Kitt Peak National Observatory and the Lick Observatory, his team found 20 galaxies that had gas that was ionized by radiation from a quasar, rather than from the energy of star formation.

In 1983, an orbiting satellite called IRAS discovered far more infrared radiation — which has waves longer than red light — coming from the Vega than expected for small interstellar dust grains found around young, early - type stars (Harvey et al, 1984).

Gas and dust clouds in 30 Doradus, also known as the Tarantula Nebula, have been sculpted into elongated shapes by powerful winds and ultraviolet radiation from these hot cluster stars.

The radiation is coming from a huge circular shell of dust surrounds the star extending outwards to 140 AU in radius, much like those that encompass Fomalhaut, Beta Pictoris, and Denebola (van der Bliek et al, 1994).

The nebula glows because of the radiation from the intensely hot, class O star, Xi Persei which is the brightest star in this picture.

A widely accepted idea has described this phenomenon as: the strong radiation from the galactic center in which the supermassive black hole locates ionizes (* 1) the surrounding gas and affects even molecular gas that is the ingredient of star formation; the strong radiation activates (* 2) or suppresses (* 3) the star formation of galaxies.

In this artist's rendering, jets of high - energy radiation shoot out from a Gamma - ray burst, signaling the death of a massive star.

The sizes of the proplyds are consistent with our calculation for FUV radiation from a B1 star, about 10 - 30 times less than that around the O star in the Orion Nebula Cluster.

The HZ of a star is also sometimes referred to as the «Goldilocks zone,» because this region of circumstellar space, in which an exoplanet can orbit, receives not too little, or too much, but instead just the right amount of radiation from its parent star to allow liquid water to exist on its surface.

When the star's ultraviolet radiation strikes the gases in the nebula, they heat up, giving out radiation ranging in wavelength from blue — emitted by hot oxygen in the bubble near the star — to yellow — emitted by hot hydrogen and nitrogen.

So while it's true that organisms living deep in the Earth are not exposed to the high - energy radiation found when you travel between planets or more hypothetically between stars, the systems that cells have evolved to repair damage done by reactive oxygen species will be useful whether they arise from rocks or from cosmic rays.

The formation of a stratosphere layer in a planet's atmosphere is attributed to «sunscreen» - like molecules, which absorb ultraviolet (UV) and visible radiation coming from the star and then release that energy as heat.

With very strong magnetic fields and very fast rotations, some neutron stars blast beams of electromagnetic radiation from their poles, and if Earth is in the path of those beams we can detect the signals as regular «pulses» — hence the name pulsars.

In terms of size, density and the amount of radiation it receives from its star, the fourth planet out is the most similar to Earth.

According to the new theory, radiation from the stars would boil off hydrogen in the planets» atmospheres.

Eventually, as the early stars grew in numbers and brightness, they would have emitted enough ultraviolet radiation to «reionize» the hydrogen, removing the electrons from their bonded protons and neutrons.

The size of the planet can also be estimated by looking at how much less radiation Earth sees from the star when a planet passes in front of it, according to a statement from the University of Bern.

Towards the end of the 19th century, scientists began to investigate how this radiation from the cosmos could be captured to «see» astronomical objects, such as stars and galaxies, in wavelengths beyond the visible range.