Results 71 to 80 of about 279,601 (204)
Deep crustal heating by neutrinos from the surface of accreting neutron stars
, 2018 We present a new mechanism for deep crustal heating in accreting neutron stars. Charged pions ($\pi^+$) are produced in nuclear collisions on the neutron star surface during active accretion and upon decay they provide a flux of neutrinos into the ...
Brown, Edward F. +6 more
core +1 more source
The Neutron Star Mass Distribution [PDF]
arXiv, 2010 In recent years, the number of pulsars with secure mass measurements has increased to a level that allows us to probe the underlying neutron star mass distribution in detail. We critically review radio pulsar mass measurements and present a detailed examination through which we are able to put stringent constraints on the underlying neutron star mass ...
arxiv
The Astrophysical Journal LettersPulse profile modeling of X-ray data from the Neutron Star Interior Composition Explorer is now enabling precision inference of neutron star mass and radius.
Nathan Rutherford +14 more
doaj +1 more source
The most massive progenitors of neutron stars: CXO J164710.2-455216
, 2008 The evolution leading to the formation of a neutron star in the very young Westerlund 1 star cluster is investigated. The turnoff mass has been estimated to be 35 Msun, indicating a cluster age ~ 3-5 Myr.
Ergma E. +12 more
core +1 more source
Hyperneutron Stars from an Ab Initio Calculation
The Astrophysical JournalThe equation of state (EOS) of neutron matter plays a decisive role in understanding the neutron star properties and the gravitational waves from neutron star mergers. At sufficient densities, the appearance of hyperons generally softens the EOS, leading
Hui Tong +2 more
doaj +1 more source
SOFT GAMMA REPEATERS AND ANOMALOUS X-RAY PULSARS BEYOND MAGNETARS
Odessa Astronomical Publications, 2016 The observational properties of Soft Gamma Repeaters and Anomalous X-ray Pulsars (SGR/AXP) indicate to necessity of the energy source different from a rotational energy of a neutron star.
G. S. Bisnovatyi-Kogan
doaj +1 more source
Nuclear Pairing Gaps and Neutron Star Cooling
Universe, 2020 We study the cooling of isolated neutron stars with particular regard to the importance of nuclear pairing gaps. A microscopic nuclear equation of state derived in the Brueckner-Hartree-Fock approach is used together with compatible neutron and proton ...
Jin-Biao Wei +2 more
doaj +1 more source
Neutron Star/Supernova Remnant Associations [PDF]
arXiv, 1998 We summarize the current observational evidence for associations between supernova remnants and neutron stars, including radio pulsars, proposed "inactive" young neutron stars, "anomalous" X-ray pulsars, and soft gamma-ray repeaters, and argue that the paradigm that all young neutron stars are Crab-like requires reconsideration.
arxiv
The properties of the neutron star PSR J0348+0432 [PDF]
, 2017 The properties of the massive neutron star PSR J0348+0432 is calculated in the framework of the relativistic mean field theory by choosing the suitable hyperon coupling constants. It is found that the central energy density $\epsilon_{c}$ and the central pressure $p_{c}$ of the massive neutron star PSR J0348+0432 respectively are 1.5 times larger and 3.
arxiv +1 more source
Magnetar QPOs and Neutron Star Crust Elasticity
UniverseThe crust region is a tiny fraction of neutron stars, but it has a variety of physical properties and plays an important role in astronomical observations. One of the properties characterizing the crust is elasticity. In this review, with the approach of
Hajime Sotani
doaj +1 more source