Equation of state sensitivities when inferring neutron star and dense matter properties
نویسندگان
چکیده
منابع مشابه
Neutron Star Radii, Core-collapse Supernovae, and the Equation of State of Dense Matter
Neutron star mass and radius measurements are becoming sufficiently accurate as to offer astrophysical constraints on the properties of neutron-rich matter near the nuclear saturation density. Current observations, which imply that the radius of a 1.4 solar mass neutron star lies between 10.4 and 12.9 km (95% confidence), also imply that 43 < L < 67 MeV, where L is a parameter describing the sl...
متن کاملNeutron Star Matter Equation of State and Gravitational Wave Emission
The EOS of strongly interacting matter at densities ten to fifteen orders of magnitude larger than the typical density of terrestrial macroscopic objects determines a number of neutron star properties, including the pattern of gravitational waves emitted following the excitation of nonradial oscillation modes. This paper reviews some of the approaches employed to model neutron star matter, as w...
متن کاملMeasurements of the Mass and Radius of a Neutron Star: consequences for the Equation of State of dense nuclear matter
The neutron star low-mass X-ray binary EXO 0748-676 started a transition from outburst to quiescence in 2008, after more than 24 years of continuous accretion. Here, I use the spectral fitting package XSPEC to analyse the X-ray spectra of four XMM-Newton observations, elapsing a period of over four years, that started in March 2009. I confirm that cooling NS models, modified by interstellar abs...
متن کاملNeutrino Emission from Dense Matter, and Neutron Star Thermal Evolution
A brief review is given of neutrino emission processes in dense matter, with particular emphasis on recent developments. These include direct Urca processes for nucleons and hyperons, which can give rise to rapid energy loss from the stellar core without exotic matter, and the effect of band structure on neutrino bremsstrahlung from electrons in the crust, which results in much lower energy los...
متن کاملTransport Properties and Neutrino Emissivity of Dense Neutron–star Matter with Localized Protons
(Received February 1, 2008) As pointed out by Kutschera and Wójcik, very low concentration of protons combined with a specific density dependence of effective neutron– proton interaction could lead to a localization of “proton impurities” in neutron medium at densities exceeding four times normal nuclear matter density. We study consequences of the localization of protons for transport processe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2019
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stz654