Sentences with word «hypervelocity»

The word "hypervelocity" means an extremely high speed or velocity. Full definition
There are about two dozen so - called hypervelocity stars known to be escaping the galaxy.
«Why space dust emits radio waves upon crashing into a spacecraft: A new simulation provides the first mechanism to explain why plasma from hypervelocity impacts generates electromagnetic radiation.»
The star, dubbed HE 0437 - 5439, is an early - type star and one of ten so - called hypervelocity stars so far found speeding away from the Milky Way.
Discovered in 2005, US 708 differs from other known hypervelocity stars.
US 708 has another peculiar property in marked contrast to other hypervelocity stars: it is a rapidly rotating, compact helium star likely formed by interaction with a close companion.
Dubbed HAMMER (Hypervelocity Asteroid Mitigation Mission for Emergency Response), the 8.8 - ton craft would be able to alter the orbit of an incoming asteroid, either by crashing into a small one or detonating a nuclear device on a large one.
There are alternative scenarios, but none explains why most of the 20 or so hypervelocity stars found so far are all in the same area of sky, in the Leo and Sextans constellations.
Elaine Cameron - Weir, a terrestrial sediment melted by hypervelocity impacts from outerspace, most fell on Bohemia, molten, forming strange shapes and solidifying bottle green like the eyes of a gorgon, 2014 (detail).
This time, they replaced the carbon source with bicarbonate and conducted hypervelocity impact experiments at 1 km / s using a single stage propellant gun.
US 708 is one of roughly a couple dozen suns known as hypervelocity stars.
Until now, scientists have largely believed that such hypervelocity stars originate when binary stars get torn apart by the supermassive black hole at the center of the Milky Way, which consumes one star and flings the other away at incredible speeds.
Confirmation will hopefully come next year when Europe's star - mapping satellite Gaia publishes its full catalog: The team predicts it should find more hypervelocity stars along the past and future orbit of the LMC.
Through hypervelocity impact experiments performed using the Vertical Gun Range at the NASA Ames Research Center, Schultz was able to show that those grooves were likely formed by chunks of the impactor that sheared off on initial contact with the surface.
This feature and the association with an iron meteorite impactor and shock metamorphism provides a unique picture of small - scale hypervelocity impacts on Earth's crust.
It was the first wreck of its kind — two intact spacecraft accidentally plowing into each other at hypervelocity — in the half - century that humans have been launching objects into space.
«Rods from God» — hypervelocity rods made of tungsten or uranium — would be hurled from an orbiting platform to penetrate underground or hardened targets.
«The other hypervelocity velocity stars discovered so far are all at least consistent with coming from the galactic centre,» Portegies Zwart says.
And there are many hypervelocity impactors straying out there and looking for targets to hit — be it a fast or slow rotator,» Drahus said.
«The technical difficulty is simulating the snowflake - like particles in the [plume] jet and mitate [ing] hypervelocity impact while keeping the crystalline snowflake cold enough so that it wouldn't melt,» Fujishima said.
Brown discovered the first hypervelocity star in 2005.
Astronomers suspect that most hypervelocity stars leave the Milky Way after a close brush with the supermassive black hole that sits at the center of our galaxy.
I loved Hypervelocity and Empowered has been on my «I really should get into this series» list for a few years.
Only a few so - called hypervelocity stars are known to travel with velocities so high that they are unbound, meaning they will not orbit the galaxy, but instead will escape its gravity to wander intergalactic space.
This time, they replaced the carbon source with bicarbonate and conducted hypervelocity impact experiments at 1 km / s using a single stage propellant gun (Figure 2).
But a new study shows that most of the 20 or so hypervelocity stars found so far might actually come from outside our own galaxy, in the Large Magellanic Cloud, a small satellite galaxy orbiting the Milky Way at nearly 400 kilometers per second.
As the team report today in Monthly Notices of the Royal Astronomical Society and at the U.K. National Astronomy Meeting in Hull, most of the known hypervelocity stars have trajectories that would fit this scenario.
In 2010, Close and colleagues published the initial hypothesis that hypervelocity impact plasmas are responsible for a few satellite failures.
Several such «hypervelocity stars» have so far been detected, but their precise origin was unclear.
And because the LMC is orbiting the Milky Way at nearly 400 kilometers per second, a star ejected from it could be moving faster than the 500 kilometers per second that makes it a hypervelocity star in the Milky Way.
Now Warren Brown of the Harvard - Smithsonian Center for Astrophysics and colleagues have used red - shift data and Hubble Space Telescope images to trace the path taken by the hypervelocity star HE 0437 - 5439.
Hypervelocity stars, and the black holes that launch them, whip through space at millions of miles per hour.
M: Just about every atom on Earth has been through the core of a hypervelocity impact.
They discovered what they call a hypervelocity star, which moves three times faster than our sun does through the galaxy.
«For the last few decades researchers have studied these hypervelocity impacts and we've noticed that there's radiation from the impacts when the particles are going sufficiently fast,» said lead author Alex Fletcher, now a postdoctoral researcher at the Boston University Center for Space Physics.
To simulate the results from a hypervelocity impact plasma, researchers used a method called particle - in - cell simulation that allows them to model the plasma and the electromagnetic fields simultaneously.
Dr Raack conducted these experiments in the Hypervelocity Impact (HVI) Laboratory based at the OU.
A hypervelocity run - in with space rubbish can take out or cripple an expensive satellite or even threaten the safety of a vehicle's crew.
Other so - called hypervelocity stars are thought to have been boosted to their high speeds by close encounters with our galaxy's supermassive black hole (see Hypervelocity stars: Catch them while you can), but this star is too young to have travelled all the way from the centre of the Milky Way.
A hypervelocity star appears to be the remains of a three - star system, one star of which was digested by the Milky Way's black hole, with the other two being combined and hurled away.
One states the explosion is a result of a hypervelocity collision with another minor object.
In the case 2), the candidate is a hypervelocity star which moves so fast that it can escape from the gravity of the Galaxy.
However, no hypervelocity star has been found in the Galactic center and the number is theoretically predicted to be much less than that of black holes.
NASA is also working on a spacecraft — the Hypervelocity Asteroid Mitigation Mission for Emergency Response (HAMMER)-- which would be designed for the purpose of tackling an Earth - bound asteroid.
Additionally, the results of the new study challenge the commonly accepted scenario that hypervelocity stars are accelerated by the supermassive black hole at the galactic center.
These astronomers were able to measure the relative abundances of certain elements for the first time in any hypervelocity star.
These superfast planets (called hypervelocity planets) are produced the same way as hypervelocity stars.
hypervelocity An adjective for stars that move across space at unusual speed — enough speed, in fact, that they can escape the gravitational hold of their parent galaxy.
Proper motions and trajectories for 16 extreme runaway and hypervelocity stars.
In this artist's illustration, a hypervelocity star is hurtling through space beyond the Milky Way.
- I typed at length about Adam Warren's writing abilities, and how his work on Iron Man: Hypervelocity with Brian Denham was a brutally effective way to do an Iron Man story.
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