PSR J0348+0432, Pulsar with white dwarf companion

[Astronuc]

Apparently this binary system is providing yet further confirmation of GR. It is only the second NS with a precisely determined mass ~ 2 solar masses.

Pulsar-White Dwarf Pair Proves Einstein’s Theory of Relativity
http://www.sci-news.com/astronomy/article01046.html

http://en.wikipedia.org/wiki/PSR_J0348+0432

PSR J0348+0432 is about two solar masses, but just ~20 km across.

http://www.eso.org/public/news/eso1319/

http://aspen13.phys.wvu.edu/aspen_talks/antoniadis_aspen.pdf

http://www.astro.uni-bonn.de/NS2013/Wex.pdf

http://th.physik.uni-frankfurt.de/~colucci/bonn_workshop_0348.pdf

 

[Drakkith]

Nice. Thanks for the links, Astronuc.

 

[Drakkith]

Odd, the wikipedia article lists the radius of the pulsar as 13 km instead of 20.

 

[Chronos]

I think ~20 km is the diameter, not radius.

 

[Drakkith]

I think ~20 km is the diameter, not radius.

Ah, I see.