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This review demonstrates that neutrino emission from dense hadronic component in neutron stars is subject of strong modifications due to collective effects in the nuclear matter. With the most important in-medium processes incorporated in…

Astrophysics · Physics 2009-09-25 Dmitri N. Voskresensky

Neutrino emission from the dense hadronic component in neutron stars is subject to strong modifications due to collective effects in the nuclear medium. We implement new estimates of the neutrino emissivities of two processes operating in…

Astrophysics · Physics 2011-05-23 Ch. Schaab , D. Voskresensky , A. D. Sedrakian , F. Weber , M. K. Weigel

Observation of cooling neutron stars can potentially provide information about the states of matter at supernuclear densities. We review physical properties important for cooling such as neutrino emission processes and superfluidity in the…

Astrophysics · Physics 2009-11-10 D. G. Yakovlev , C. J. Pethick

We study the cooling of isolated neutron stars. The main cooling regulators are introduced: EoS, thermal transport, heat capacity, neutrino and photon emissivity, superfluid nucleon gaps. Neutrino emissivity includes main processes. A…

Astrophysics · Physics 2007-05-23 D. Blaschke , H. Grigorian , D. N. Voskresensky

Young neutron stars cool via the emission of neutrinos from their core. A precise understanding of all the different processes producing neutrinos in the hot and degenerate matter is essential for assessing the cooling rate of such stars.…

High Energy Physics - Phenomenology · Physics 2024-05-02 Sabyasachi Chakraborty , Aritra Gupta , Miguel Vanvlasselaer

The impact of nuclear physics theories on cooling of isolated neutron stars is analyzed. Physical properties of neutron star matter important for cooling are reviewed such as composition, the equation of state, superfluidity of various…

The cooling of a compact star depends very sensitively on the state of dense matter at supranuclear densities, which essentially controls the neutrino emission, as well as on the structure of the stellar outer layers which control the…

Astrophysics · Physics 2009-11-13 Dany Page , Ulrich Geppert , Fridolin Weber

We study the cooling of isolated dark-matter-admixed neutron stars, employing a realistic nuclear equation of state and realistic nuclear pairing gaps, together with fermionic dark matter of variable particle mass and dark-matter fraction.…

High Energy Astrophysical Phenomena · Physics 2025-12-30 B. X. Zhou , H. C. Das , J. B. Wei , G. F. Burgio , Z. H. Li , H. -J. Schulze

Neutrino emission drives neutron star cooling for the first several hundreds of years after its birth. Given the low energy ($\sim$ keV) nature of this process, one expects very few nonstandard particle physics contributions which could…

Astrophysics · Physics 2009-11-10 Prashanth Jaikumar , K. R. S. Balaji , Charles Gale

Neutrino processes in dense matter play a key role in the dynamics, deleptonization and early cooling of hot protoneutron stars formed in the gravitational collapse of massive stars. Here we calculate neutrino mean free paths from…

Nuclear Theory · Physics 2009-09-25 Sanjay Reddy , Madappa Prakash

Nuclear medium effects in the neutrino cooling of neutron stars through the exotic reaction channel \gamma \gamma --> \pi^0--> \nu_R \bar{\nu_L} (\nu_L \bar{\nu_R}) are incorporated. Throughout the paper we discuss different possibilities…

Astrophysics · Physics 2009-11-07 F. Arretche , A. A. Natale , D. N. Voskresensky

Motivated by the various theoretical studies regarding the efficient capturing of dark matter by neutron stars, we explore the possible indirect effects of captured dark matter on the cooling mechanism of a neutron star. The equation of…

High Energy Astrophysical Phenomena · Physics 2022-05-05 Ankit Kumar , H. C. Das , S. K. Patra

Neutrinos play an important role in compact star astrophysics: neutrino-heating is one of the main ingredients in core-collapse supernovae, neutrino-matter interactions determine the composition of matter in binary neutron star mergers and…

High Energy Astrophysical Phenomena · Physics 2020-09-16 Micaela Oertel , Aurélien Pascal , Marco Mancini , Jerome Novak

We explore the impact of in-medium modification of the properties of vector mesons on the nuclear equation of state and neutron star properties. It is found that in-medium modifications stiffen the nuclear equation of state considerably. If…

Nuclear Theory · Physics 2007-05-23 F. Weber , Gy. Wolf , T. Maruyama , S. Chiba

Neutron Stars (NSs) are born as hot, lepton-rich objects that evolve according to the standard paradigm through subsequent stages where they radiate the excess of energy by emitting, first, neutrinos and, later on, photons. Current…

High Energy Physics - Phenomenology · Physics 2022-02-15 M. Ángeles Pérez-García , H. Grigorian , C. Albertus , D. Barba , J. Silk

We study different stages of the neutron star cooling by computing neutron star properties at various temperatures and entropies using an effective chiral model including hadronic and quark degrees of freedom. Macroscopic properties of the…

Astrophysics · Physics 2010-11-02 V. Dexheimer , S. Schramm

We study the dependence of the cooling of isolated neutron stars on the magnitude of the $3P_2$ neutron gap. It is demonstrated that our ``nuclear medium cooling'' scenario is in favor of a suppressed value of the $3P_2$ neutron gap.

Astrophysics · Physics 2016-08-30 H. Grigorian , D. N. Voskresensky

Superbursts of neutron stars are rare but powerful events explained by the explosive burning of carbon in the deep layers of the outer envelope of the star. In this paper we perform a simulation of superbursts and propose a simple method…

High Energy Astrophysical Phenomena · Physics 2024-03-01 A. D. Kaminker , A. Y. Potekhin , D. G. Yakovlev

I give a general overview of the theory of neutron star cooling, emphasizing the intuitive understanding of the effects of the various physical ingredients, including the recently proposed accreted envelopes and neutrino emission from…

Astrophysics · Physics 2007-05-23 Dany Page

A generic toy model of a cooling neutron star (NS) is used to analyze cooling of NSs with nucleon and exotic composition of the cores. The model contains the parameters which specify the levels of slow and enhanced neutrino emission as well…

Astrophysics · Physics 2009-11-07 D. G. Yakovlev , P. Haensel
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