Daily non-political popular news in brief.

Chandra discovers light echo from the Milky Way's Black Hole

01-10-2007 · EurekAlert!

Like cold case investigators, astronomers have used NASA's Chandra X-ray Observatory to uncover evidence of a powerful outburst from the giant black hole at the Milky Way's center.

Keywords: chandra, discovers, light, echo, milky, way, black, hole, discover

« Previous | Next »

Similar news on "Chandra discovers light echo from the Milky Way's Black Hole":

Astronomers detect black hole in tiny 'dwarf' galaxy
01-07-2007 · EurekAlert!
Astronomers have found evidence of a supermassive black hole at the heart of a dwarf elliptical galaxy about 54 million light years away from the Milky Way galaxy where Earth resides.
Similar news · Read more »
A brother for the Milky Way's black hole
07-25-2007 · EurekAlert!
Is a second black hole lurking at the heart of the Milky Way? We know there is one colossal black hole at the centre of the galaxy, but so far no one has managed to verify the existence of a second. Now, an astrophysicist at the University if California says a simple test could answer the question. Look for a pair of hypervelocity stars hurtling out from the centre of the galaxy at breakneck speed.
Similar news · Read more »
Ultrafast Star Escapes Black Hole
10-13-2006 · ScienceDaily
At last astronomers have a method to accurately measure the speed of stars within a galaxy containing a black hole. Dutch researcher Alessia Gualandris developed the algorithm for this in cooperation with the Astronomical Institute "Anton Pannekoek" and the Amsterdam Informatics Institute. The outcomes of this groundbreaking research provide convincing evidence for the relationship between galactic nuclei, heavy black holes and ultrafast stars in the Milky Way.
Similar news · Read more »
Milky Way black hole may be a colossal 'particle accelerator'
02-27-2007 · EurekAlert!
The black hole at the center of our Milky Way could be working like a cosmic particle accelerator, revving up protons that smash at incredible speeds into lower energy protons and creating high-energy gamma rays, University of Arizona astrophysicists say.
Similar news · Read more »
NASA scientists predict black hole light echo show
01-10-2008 · EurekAlert!
It's well known that black holes can slow time to a crawl and tidally stretch large objects into spaghetti-like strands. But according to new theoretical research from two NASA astrophysicists, the wrenching gravity just outside the outer boundary of a black hole can produce yet another bizarre effect: light echoes.
Similar news · Read more »
Hyperfast star proven to be alien
01-28-2008 · EurekAlert!
A young star is speeding away from the Milky Way so fast that astronomers have been puzzled by where it came from; based on its young age it has traveled too far to have come from our galaxy. The researchers have determined that it came from our neighboring galaxy, the Large Magellanic Cloud. The result suggests that it was ejected from that galaxy by a yet-to-be-observed massive black hole.
Similar news · Read more »
New stars shed light on the past
01-08-2007 · EurekAlert!
A new image from the Hubble Space Telescope shows N90, one of the star-forming regions in the Small Magellanic Cloud. The rich populations of infant stars found here enable astronomers to examine star forming processes in an environment that is very different from that in our own Milky Way.
Similar news · Read more »
Largest, brightest supernova ever seen may be long-sought pair-instability supernova
05-07-2007 · EurekAlert!
UC Berkeley astronomers Nathan Smith and David Pooley report the most luminous supernova ever detected, the explosion of a super-massive star in a galaxy 250 million light years away. The scientists estimate the star was 150 times larger than our sun, and that it exploded via an entirely new mechanism never before observed. Unlike other massive supernovas, this so-called pair instability supernova left behind no black hole.
Similar news · Read more »
Scientists reveal how supermassive black holes bind into pairs during galaxy mergers
06-07-2007 · EurekAlert!
Now, using supercomputers to simulate galaxy mergers, scientists at Stanford and elsewhere have seen the formation of a new type of structure-a central disk of gas that can be from a hundred to a few thousand light years wide and from a few hundred million to a billion solar masses. They report the first simulated formation of a supermassive black hole (SMBH) pair in the June 7 edition of Science Express, an online version of Science magazine.
Similar news · Read more »
Integral discovers the galaxy's antimatter cloud is lopsided
01-09-2008 · European Space Agency (ESA)
The shape of the mysterious cloud of antimatter in the central regions of the Milky Way has been revealed by ESA's orbiting gamma-ray observatory Integral. The unexpectedly lopsided shape is a new clue to the origin of the antimatter.
Similar news · Read more »