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Monday, October 29, 2012

Our galaxy caught for dinner: Milky Way star absorbs


Using the Sloan Digital Sky Survey, the researchers found that the torrent of stars, which is supposed to symbolize the remains of ancient star clusters, slowly absorbed with you our own Milky Way galaxy.

A team of astronomers from Yale University led by Ana Bonaca, masters and lead author of the new study, had previously noted that the Milky Way has a tendency to absorb dwarf galaxies, 

Discovered the most rapidly rotating superdense star


Scientists have found evidence of what may be the fastest moving pulsar. During the observation using three different telescopes - NASA's X-ray Observatory "Chandra", ESA XMM-Newton, located in space, and a radio telescope Parks in Australia.

X-ray observations, "Chandra" and XMM-Newton were combined with infrared data of the project 2MASS optical data and digital images of the sky.

Sunday, October 28, 2012

Trillions of comets collide around Fomalhaut


Dust ring around the star Fomalhaut is created in the collision of comets thousands every day.

Located only at a distance of 25 light years from Earth, Fomalhaut is a fairly young star, twice as massive as our sun, and discovered in 1980 in a large amount of dust.

Now, astronomers using a telescope Herschel discovered a dense strip of dusty materials, about half of which is water ice at the edges of the system.

Enormous image of the center of the Milky Way


An international team of astronomers has created a directory enclose more than 84 million stars in the Milky Way. The basis for this proposal is a huge picture of the size of nine gigapixel, which amounted to an infrared VISTA telescope data Chilean observatory.

Image of stars the size is nine meters long and seven meters wide.

Roberto Saito, the lead researcher of the Pontifical Catholic University of Chile considers that this work will help to better understand the formation and evolution of spiral galaxies.

Saturday, October 27, 2012

Cassini sees giant energy flow on Saturn


NASA's Cassini spacecraft recorded the effects of an ancient giant storm on Saturn. New data pointed to record conflict in the upper atmosphere of the planet, which existed for a long time after the in evidence signs of the storm had disappeared, and that the storm was actually much stronger than previously thought.

In the analysis of data obtained from the composite infrared spectrometer apparatus Cassini, discovered that a powerful electrical discharges that occurred during the storm, Saturn's stratosphere warmed to 83 Kelvin above its normal temperature. 

The giant exoplanet zombie rises from the dead


Huge extrasolar planet, which many astronomers thought the "dead and buried", came back to life, researchers say.

A new study of the results of observations made ​​space telescope "Hubble", found lying around nearby star Fomalhaut us really exists giant exoplanet, which scientists dubbed exoplanets, "zombies." These findings oppose the results of other recent studies claiming that the so-called "planet" - known as Fomalhaut b - is actually a huge cloud of dust.

The smallest supermassive black hole


Who of us do not ever remember the Old New Year with a sad joy, and now we have a new oxymoron - a mini-supermassive black hole (BH). However, regardless of the fact that this black hole is the tiny class of super-massive black hole, its mass is still huge - it is about 200,000 mass of our Sun.

A team of astronomers led by Nathan Sekrestom of George Mason University, explore the galaxy NGC 4178, did not expect that at the center of this galaxy is the black hole, as NGC 4178 has pronounced bulge - bright area near the center of the galaxy,