Search found 4 matches

by tvi
Wed Jul 22, 2015 11:44 am
Forum: Astronomy and Cosmology
Topic: Pulsar punches hole in stellar disk
Replies: 1
Views: 6977

Pulsar punches hole in stellar disk

http://phys.org/news/2015-07-pulsar-hole-stellar-disk.html A fast-moving pulsar appears to have punched a hole in a disk of gas around its companion star and launched a fragment of the disk outward at a speed of about 4 million miles per hour. These observations show the clump moving away from B125...
by tvi
Wed Jul 23, 2014 12:10 am
Forum: Astronomy and Cosmology
Topic: 'transformer' pulsar
Replies: 1
Views: 5902

'transformer' pulsar

Fermi finds a 'transformer' pulsar

http://phys.org/news/2014-07-fermi-pulsar.html

"The pulsar's radio beacon vanished, while at the same time the system brightened fivefold in gamma rays"
by tvi
Wed Sep 25, 2013 2:14 pm
Forum: Astronomy and Cosmology
Topic: 'Jekyll and Hyde' star morphs from radio to X-ray pulsar and back again
Replies: 1
Views: 5776

'Jekyll and Hyde' star morphs from radio to X-ray pulsar and back again

<r>"This was particularly intriguing because radio pulses don't come from an X-ray binary and the X-ray source has to be long gone before radio signals can emerge."<br/> <br/> Read more at: <URL url="http://phys.org/news/2013-09-jekyll-hyde-star-morphs-radio.html"><LINK_TEXT text="http://phys.org/ne...
by tvi
Wed May 29, 2013 1:54 pm
Forum: Astronomy and Cosmology
Topic: Super-dense star is first ever found suddenly slowing its spin
Replies: 2
Views: 7237

Super-dense star is first ever found suddenly slowing its spin

http://phys.org/news/2013-05-cosmic-glitch-super-dense-star-suddenly.html "This neutron star is doing something completely unexpected. Its speed of rotation has been dropping at an increasingly rapid rate ever since the initial sudden decrease in its spin." ...... "These discoveries ...