aug 192013
 
Dwarf Galaxy Caught Ramming Into a Large Spiral

  Observations with NASA’s Chandra X-ray Observatory have revealed a massive cloud of multimillion-degree gas in a galaxy about 60 million light-years from Earth. The hot gas cloud is likely caused by a collision between a dwarf galaxy and a much larger galaxy called NGC 1232. If confirmed, this discovery would mark the first time [continue reading]

mrt 102013
 
Anne's Picture of the Day: Cosmic Bubble Sharpless 308

March 10, 2013 Sharpless 308, a cosmic bubble in Canis Major Image Credit: ESA, J. Toala & M. Guerrero (IAA-CSIC), Y.-H. Chu & R. Gruendl (UIUC), S. Arthur (CRyA–UNAM), R. Smith (NOAO/CTIO), S. Snowden (NASA/GSFC) and G. Ramos-Larios (IAM) Sharpless 308 (also known as Sh2-308 or S 308) is a cosmic bubble of nearly 60 [continue reading]

feb 282013
 
The Mystery of a Super-Fast Spinning Supermassive Black Hole

  Two X-ray space observatories, NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) and the European Space Agency’s XMM-Newton, have teamed up to measure definitively, for the first time, the spin rate of a black hole with a mass 2 million times that of our Sun.  This artist’s concept illustrates a supermassive black hole with millions to [continue reading]

feb 052013
 
Massive Stellar Winds are Made of Tiny Pieces

  ESA’s XMM-Newton space observatory has completed the most detailed study ever of the fierce wind from a giant star, showing for the first time that it is not a uniform breeze but is fragmented into hundreds of thousands of pieces. Artist’s impression comparing a smooth stellar wind (left) with a highly fragmented stellar wind [continue reading]

jan 202013
 
No Galaxy Is An Island, Entire of Itself

  KIPAC scientists use X-ray observations show how galaxies shape their environment, and vice-versa   A major component of our understanding of galaxy evolution that has remained elusive is the influence of the local environment on the galaxy, especially when discussing galaxies in large clusters. Galaxy clusters, the largest gravitationally bound objects in the Universe, [continue reading]

dec 272012
 
More Active Black Holes Than Thought

  Very sensitive, wide-field observations with a worldwide network of radio telescopes have uncovered supermassive black holes residing in the center of dust obscured galaxies. In some cases, the amount of dust is so large that even x-rays from the accreting black holes are absorbed in these systems. This is the result of research done by astronomers [continue reading]