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Related papers: Pycnonuclear reactions in dense stellar matter

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The accretion of matter onto the surface of a neutron star in a low-mass X-ray binary triggers X-ray bursts, whose ashes are buried and further processed thus altering the composition and the properties of the stellar crust. In this second…

High Energy Astrophysical Phenomena · Physics 2022-09-26 A. F. Fantina , J. L. Zdunik , N. Chamel , J. M. Pearson , L. Suleiman , S. Goriely

The non-relativistic model of nuclear matter with zero-range Skyrme interactions is employed within a Bayesian approach in order to study the behavior of neutron stars (NSs) equation of state (EOS). A minimal number of constraints from…

High Energy Astrophysical Phenomena · Physics 2024-02-28 Mikhail V. Beznogov , Adriana R. Raduta

Ultralight bosons such as axions and dark photons are well-motivated hypothetical particles, whose couplings to ordinary matter can be effectively constrained by stellar cooling. Limits on these interactions can be obtained by demanding…

High Energy Physics - Phenomenology · Physics 2026-04-13 Zhaoyu Bai , Vitor Cardoso , Yifan Chen , Yuyan Li , Jamie I. McDonald , Hyeonseok Seong

Properties and structure of neutron stars are determined by the equation of state (EOS) of neutron-rich stellar matter. While the collective flow and particle production in relativistic heavy-ion collisions have constrained tightly the EOS…

Astrophysics · Physics 2008-04-22 Aaron Worley , Plamen G. Krastev , Bao-An Li

The dense environment of neutron stars makes them an excellent target for probing dark matter interactions with the Standard Model. We study neutron star heating from capture of inelastic dark matter, which can evade direct detection…

High Energy Physics - Phenomenology · Physics 2023-05-24 Gerardo Alvarez , Aniket Joglekar , Mehrdad Phoroutan-Mehr , Hai-Bo Yu

Correct interpretation of X-ray observations of transiently accreting neutron stars requires modeling of nuclear-physical processes in these objects. We consider a chain of nuclear reactions that drives the crust composition in an accreting…

Solar and Stellar Astrophysics · Physics 2020-01-28 Nikolay N. Shchechilin , Andrey I. Chugunov

In numerical simulations of core-collapse supernova and binary neutron stars mergers, information about the energetics and composition of matter is implemented via external tables covering the huge ranges of thermodynamic conditions…

Nuclear Theory · Physics 2025-09-11 Adriana R. Raduta , Mikhail V. Beznogov

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

The observation of thermal emission from isolated neutron stars and the modeling of the corresponding cooling curves has been very useful to get information on the properties of matter at very high densities. More recently, the detection of…

High Energy Astrophysical Phenomena · Physics 2015-05-21 Deborah N. Aguilera , Anabela Turlione

Both superbursters and soft X-ray transients probe the thermal structure of the crust on compact stars and are sensitive to the process of deep crustal heating. It was recently shown that the transfer of matter from crust to core in a…

Astrophysics · Physics 2007-05-23 M. Stejner

Neutron stars accreting matter from low-mass binary companions are observed to undergo bursts of X-rays due to the thermonuclear explosion of material on the neutron star surface. We use recent results on superfluid and superconducting…

High Energy Astrophysical Phenomena · Physics 2012-01-17 Wynn C. G. Ho

The neutron-drip transition in the dense matter constituting the interior of neutron stars generally refers to the appearance of unbound neutrons as the matter density reaches some threshold density $\rho_\textrm{drip}$. This transition has…

High Energy Astrophysical Phenomena · Physics 2015-05-27 N. Chamel , A. F. Fantina , J. L. Zdunik , P. Haensel

Neutron stars cooling after sustained accretion outbursts provide unique information about the neutron star crust and underlying dense matter. Comparisons between astronomical observations of these cooling transients and model calculations…

High Energy Astrophysical Phenomena · Physics 2019-09-11 Sudhanva Lalit , Zach Meisel , Edward F. Brown

The equation of state (EoS) of hot and dense matter is a fundamental input to describe static and dynamical properties of neutron stars, core-collapse supernovae and binary compact-star mergers. We review the current status of the EoS for…

Nuclear Theory · Physics 2019-03-06 G. Fiorella Burgio , Anthea F. Fantina

Matter in neutron star cores reaches extremely high densities, forming states of matter that cannot be generated in the laboratory. The Equation of State (EOS) of the matter links to macroscopic observables, such as mass M and radius R, via…

High Energy Astrophysical Phenomena · Physics 2018-08-22 Anna L. Watts

Formed in the aftermath of gravitational core-collapse supernova explosions, neutron stars are unique cosmic laboratories for probing the properties of matter under extreme conditions that cannot be reproduced in terrestrial laboratories.…

Nuclear Theory · Physics 2019-03-06 David Blaschke , Nicolas Chamel

We perform a systematic analysis of neutron star radius constraints from five quiescent low-mass X-ray binaries and examine how they depend on measurements of their distances and amounts of intervening absorbing material, as well as their…

High Energy Astrophysical Phenomena · Physics 2014-03-20 James M. Lattimer , Andrew W. Steiner

Observations of accreting neutron stars are widely used to constrain the microphysical properties of superdense matter. A key ingredient in this analysis is the heating associated with nuclear reactions in the outer layers of the neutron…

Nuclear Theory · Physics 2024-06-11 Mikhail E. Gusakov , Andrey I. Chugunov

Modelling of crust heating and cooling across multiple accretion outbursts of the low mass X-ray binary MXB 1659-29 indicates that the neutrino luminosity of the neutron star core is consistent with direct Urca reactions occurring in $\sim…

High Energy Astrophysical Phenomena · Physics 2022-10-21 Melissa Mendes , Farrukh J. Fattoyev , Andrew Cumming , Charles Gale

Purpose To investigate synthesis of nuclei in pycnonuclear reactions in dense medium of neutron stars on the basis of understanding, how the compound nucleus is formed during collision of two nuclei. To implement microscopic formulation of…

Nuclear Theory · Physics 2026-04-13 S. P. Maydanyuk , Ju-Jun Xie , V. S. Vasilevsky , K. A. Shaulskyi