Neutrino Emissivity and Cooling of the Star

2010 ◽  
pp. 95-111
Author(s):  
Andreas Schmitt
Keyword(s):  
Neutrino Emissivity

scholarly journals Generalized two-point tree-level amplitude j f → j′ f′ in a magnetized medium

2015 ◽  
Vol 30 (11) ◽  
pp. 1550049 ◽  
Author(s):  
A. V. Kuznetsov ◽  
D. A. Rumyantsev ◽  
D. M. Shlenev
Keyword(s):  
Magnetic Field ◽  
Axial Vector ◽  
Field Operator ◽  
Coherent Scattering ◽  
Tree Level ◽  
Tree Level Amplitude ◽  
Photoproduction Process ◽  
Arbitrary Strength ◽  
Neutrino Emissivity ◽  
A Current

The tree-level two-point amplitudes for the transitions j f → j′ f′, where f is a fermion and j is a generalized current, in a constant uniform magnetic field of an arbitrary strength and in charged fermion plasma, for the j f f interaction vertices of the scalar, pseudoscalar, vector and axial-vector types have been calculated. The generalized current j could mean the field operator of a boson, or a current consisting of fermions, e.g. the neutrino current. The particular cases of a very strong magnetic field, and of the coherent scattering off the real fermions without change of their states (the "forward" scattering) have been analyzed. The contribution of the neutrino photoproduction process, [Formula: see text], to the neutrino emissivity has been calculated with taking account of a possible resonance on the virtual electron.

scholarly journals NEUTRINO EMISSION IN INHOMOGENEOUS PION CONDENSED QUARK MATTER

2008 ◽  
Vol 17 (09) ◽  
pp. 1906-1916 ◽  
Author(s):  
XUGUANG HUANG ◽  
QUN WANG ◽  
PENGFEI ZHUANG
Keyword(s):  
Neutron Star ◽  
Specific Heat ◽  
Cooling Rate ◽  
Condensed Phase ◽  
Quark Matter ◽  
Baryon Density ◽  
Neutrino Emission ◽  
Neutrino Emissivity

It is believed that quark matter can exist in neutron star interior if the baryon density is high enough. When there is a large isospin density, quark matter could be in a pion condensed phase. We compute neutrino emission from direct Urca processes in such a phase, particularly in the inhomogeneous Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) states. The neutrino emissivity and specific heat are obtained, from which the cooling rate is estimated.

Neutrino emissivity in the color superconducting quark-hadron-mixed phase

2019 ◽  
Vol 340 (1-3) ◽  
pp. 139-144 ◽  
Author(s):  
A. Freeman ◽  
D. Farrell ◽  
F. Weber ◽  
W. M. Spinella ◽  
M. G. Orsaria ◽  
...  
Keyword(s):  
Mixed Phase ◽  
Neutrino Emissivity

Neutrino emissivity from e − e + annihilation in a strong magnetic field: Non-degenerate plasma

1994 ◽  
Vol 4 (4) ◽  
pp. 283-289 ◽  
Author(s):  
A. D. Kaminker ◽  
O. Yu. Gnedin ◽  
D. G. Yakovlev ◽  
P. Amsterdamski ◽  
P. Haensel
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Degenerate Plasma ◽  
Neutrino Emissivity

LARGE MIXING ANGLE STERILE NEUTRINOS AND PULSAR VELOCITIES

2009 ◽  
Vol 24 (31) ◽  
pp. 2507-2516 ◽  
Author(s):  
LEONARD S. KISSLINGER ◽  
ERNEST M. HENLEY ◽  
MIKKEL B. JOHNSON
Keyword(s):  
Magnetic Field ◽  
Sterile Neutrino ◽  
Effective Volume ◽  
Sterile Neutrinos ◽  
Mixing Angle ◽  
Lowest Landau Level ◽  
Neutrino Emissivity ◽  
Global Fit ◽  
Temperature Equilibrium ◽  
Protoneutron Star

We investigate the momentum given to a protoneutron star, the pulsar kick, during the first ten seconds after temperature equilibrium is reached. Using a model with two sterile neutrinos obtained by fits to the MiniBooNE and LSND experiments, which is consistent with a new global fit, there is a large mixing angle, and the effective volume for emission is calculated. Using formulations with neutrinos created by URCA processes in a strong magnetic field, so the lowest Landau level has a sizable probability, we find that with known parameters, the asymmetric sterile neutrino emissivity might account for large pulsar kicks.

Neutrino emissivity of quark matter at finite temperatures

Pramana ◽  
1995 ◽  
Vol 45 (2) ◽  
pp. 195-208 ◽  
Author(s):  
V K Gupta ◽  
A Wadhwa ◽  
J D Anand
Keyword(s):  
Quark Matter ◽  
Neutrino Emissivity
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