Results 11 to 20 of about 279,601 (204)
Smoke and mirrors: Neutron star internal heating constraints on mirror matter [PDF]
Phys. Rev. Lett. 127, 061805 (2021), 2021 Mirror sectors have been proposed to address the problems of dark matter, baryogenesis, and the neutron lifetime anomaly. In this work we study a new, powerful probe of mirror neutrons: neutron star temperatures. When neutrons in the neutron star core convert to mirror neutrons during collisions, the vacancies left behind in the nucleon Fermi seas are ...
arxiv +1 more source
Incommensurate Crystallization of Neutron Matter in Neutron Stars
East European Journal of Physics, 2020 The composition of the neutron stars from its surface region, outer-core, inner-core, and to its center is still being investigated. One can only surmise on the properties of neutron stars from the spectroscopic data that may be available from time to ...
Kapil M. Khanna +3 more
doaj +1 more source
The Astrophysical Journal, 2023 The mergers of neutron star–neutron star and neutron star–black hole binaries (NSBHs) are the most promising gravitational wave (GW) events with electromagnetic (EM) counterparts.
Chayan Chatterjee +5 more
doaj +1 more source
The Role of Strong Gravity and the Nuclear Equation of State on Neutron-Star Common-Envelope Accretion [PDF]
, 2021 Common-envelope evolution is important in the formation of neutron star binaries within the isolated binary formation channel. As a neutron star inspirals within the envelope of a primary massive star, it accretes and spins up. Because neutron stars are in the strong-gravity regime, they have a substantial relativistic mass deficit, i.e., their ...
arxiv +1 more source
What Is the Nature of the HESS J1731-347 Compact Object?
The Astrophysical Journal, 2023 Once further confirmed in future analyses, the radius and mass measurement of HESS J1731-347 with $M={0.77}_{-0.17}^{+0.20}\,{M}_{\odot }$ and $R={10.4}_{-0.78}^{+0.86}\,\mathrm{km}$ will be among the lightest and smallest compact objects ever detected ...
Violetta Sagun +5 more
doaj +1 more source
Initial data for black hole-neutron star binaries, with rotating stars [PDF]
, 2016 The coalescence of a neutron star with a black hole is a primary science target of ground-based gravitational wave detectors. Constraining or measuring the neutron star spin directly from gravitational wave observations requires knowledge of the ...
Foucart, Francois +6 more
core +2 more sources
Nonparametric Model for the Equations of State of a Neutron Star from Deep Neural Network
The Astrophysical Journal, 2023 It is of great interest to understand the equation of state (EOS) of the neutron star, whose core includes highly dense matter. However, there are large uncertainties in the theoretical predictions for the EOS of a neutron star. It is useful to develop a
Wenjie Zhou +3 more
doaj +1 more source
Multi-messenger Emission from Tidal Waves in Neutron Star Oceans [PDF]
, 2022 Neutron stars in astrophysical binary systems represent exciting sources for multi-messenger astrophysics. A potential source of electromagnetic transients from compact binary systems is the neutron star ocean, the external fluid layer encasing a neutron star. We present a groundwork study into tidal waves in neutron star oceans and their consequences.
arxiv +1 more source
What can neutron stars reveal about the equation of state of dense matter? [PDF]
EPJ Web of Conferences, 2020 Neutron stars are astrophysical objects of extremes, reaching the highest densities we can observe in the cosmos, and probing matter under conditions that cannot be recreated in terrestrial experiments.
Tews Ingo
doaj +1 more source
Quasiequilibrium sequences of black-hole--neutron-star binaries in general relativity [PDF]
, 2006 We construct quasiequilibrium sequences of black hole-neutron star binaries for arbitrary mass ratios by solving the constraint equations of general relativity in the conformal thin-sandwich decomposition.
B. Carter +9 more
core +2 more sources