'Nuclear Pasta' in Neutron Stars: New Type of Matter Found
I'll have mine "Bolognese" please and a glass of Brunello di Montalcino too. Thanks.
'Nuclear Pasta' in Neutron Stars: New Type of Matter Found
I'll have mine "Bolognese" please and a glass of Brunello di Montalcino too. Thanks.
astroval (06-27-2013),chas53 (06-28-2013),j.gardavsky (06-27-2013),kencrowder (06-27-2013),tybrad (06-28-2013)
Here is a paper on the nature of the matter:
http://arxiv.org/pdf/1109.3511v2.pdf
Here is a presentation. Note that you need to have (due to one axis label which has "Neutrino Energy" written in Japanese) Adobe's Japanese font:
http://www.mpa-garching.mpg.de/hydro..._08/sonoda.pdf
astroval (06-27-2013),chas53 (06-28-2013),kencrowder (06-27-2013)
chas53 (06-28-2013),not_Fritz_Argelander (06-27-2013)
I know of no alternative to slowing down neutron stars aside from magnetic braking. Raising the resistivity of the matter is what is required. "Pasta states" of neutron star matter may be only one way to do that. There might be others. It's a complicated calculation to get the pasta state.
astroval (06-28-2013),chas53 (06-28-2013),kencrowder (06-27-2013)
astroval (06-28-2013),chas53 (06-28-2013),not_Fritz_Argelander (06-27-2013)
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
DSO AP:
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,LRGB filters; KWIQ/QHY5 guide
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome;
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
(pier);
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
.
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
astroval (06-28-2013),chas53 (06-28-2013),not_Fritz_Argelander (06-27-2013)
chas53 (06-28-2013),kencrowder (06-27-2013)
chas53 (06-28-2013),not_Fritz_Argelander (06-27-2013)
Fair enough. But one does these calculations in the local inertial (Lorentz) reference frames without gravity and GR. So you get the dependency of pressure on density in SR context. Plug that into the "right hand side" or source term for the GR field equations, the stress-energy tensor, and viola! ( ) You get the Tolman Oppenheimer Volkoff equation which makes sure that GR is happy with the matter distribution.
chas53 (06-28-2013),kencrowder (06-27-2013)