Archives for the 'neutron stars' Category
X-Ray Crab
Published on 7 Nov 2008 at 5:13 pm.
1 Comment.
Filed under astronomy, nebula, neutron stars.
Messier 1, the Crab Nebula, is a famous supernova remnant in Taurus. It was left behind by the supernova visible from Earth in 1054. The Crab Nebula is about 6000 light years away. The image above is a composite make from three different instruments. The green and dark blue images […]
White Dwarf Pulsar
Published on 7 Jan 2008 at 11:07 pm.
2 Comments.
Filed under neutron stars, stars, white dwarfs.
In introductory astronomy classes, we talk about white dwarfs and pulsars. They are generally thought of as completely separate end products of stellar evolution. A star of less that 8 solar masses (initial mass) will shed its outer layers into space and leave behind a degenerate object known as a white dwarf. […]
Geminga
Published on 14 Feb 2007 at 1:51 pm.
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Filed under neutron stars.
Located near the foot of Gemini is perhaps the closest neutron star that we know, at only a bit over 500 lightyears away. Discovered by the Small Astronomy Satellite 2 (SAS-2) in the early 1970’s, very little was known about this object other than that it was a gamma ray source. But, the […]
AAS Meeting - millisecond pulsars
Published on 10 Jan 2007 at 1:11 pm.
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Filed under conference blogging, neutron stars.
Well, we are still meeting here in Seattle. It just goes on. But, this is good. I would MUCH rather be doing this than I would be back home going to faculty meetings that I hate and getting ready for the semester. Actually, I’m already ready to go.
Today, we had some talks on millisecond pulsars. […]
