Hey, WIMPs: Beware of Dwarf

User rating: 4 / 5 after 25 vote(s)

Arrows in the center of this image point toward the supermassive black hole at the galactic center of the Milky Way galaxy. GLAST data may soon provide evidence of WIMP-burning stars nearby. Credit: European Southern Observatory
Arrows in the center of this image point toward the supermassive black hole at the galactic center of the Milky Way galaxy. GLAST data may soon provide evidence of WIMP-burning stars nearby. Credit: European Southern Observatory

Stars may be bullies in their old age. White dwarfs—dense, collapsed stars in their final stage of life—could be skilled at swallowing and annihilating weakly interacting massive particles (WIMPs). These particles may constitute a large portion of the dark matter in the universe, and could form extremely dense concentrations near supermassive black holes.


Full story »

All News summaries from Physics news
All News summaries for April 03, 2007

Physicists investigate how time moves forward

10 hours ago | User rating: not rated yet
As humans, we have a very intuitive concept of time, and of the differences between the past, present, and future. But, as scientists Edward Feng of the University of California, Berkeley, and Gavin Crooks of the Lawrence ...

Michigan integral to world's largest physics experiment

11 hours ago | User rating: not rated yet
After 20 years of construction, a machine that could either verify or nullify the prevailing theory of particle physics is about to begin its mission. CERN's epic Large Hadron Collider (LHC) project currently involves 25 ...

LHC switch-on fears are completely unfounded: new research paper

Sep 05, 2008 | User rating: not rated yet
(PhysOrg.com) -- A new report published on Friday, 5 September, provides the most comprehensive evidence available to confirm that the Large Hadron Collider (LHC)'s switch-on, due on Wednesday next week, poses no threat to ...

A fine-tooth comb to measure the accelerating universe

Sep 04, 2008 | User rating: not rated yet
Astronomical instruments needed to answer crucial questions, such as the search for Earth-like planets or the way the Universe expands, have come a step closer with the first demonstration at the telescope ...

Team studies how new helium ion microscope measures up

Sep 04, 2008 | User rating: not rated yet
Just as test pilots push planes to explore their limits, researchers at the National Institute of Standards and Technology are probing the newest microscope technology to further improve measurement accuracy ...