Results 11 to 20 of about 20,312 (304)

Hyperons in Neutron Stars [PDF]

open access: yesUniverse, 2021
I review the issues related to the appearance of hyperons in neutron star matter, focusing in particular on the problem of the maximum mass supported by hyperonic equations of state. I discuss the general mechanism that leads to the formation of hyperons
Domenico Logoteta
doaj   +6 more sources

Isolated Neutron Stars [PDF]

open access: yesEPJ Web of Conferences, 2010
Several aspects related to astrophysics of isolated neutron stars are discussed. We start with an introduction into the “new zoo” of young isolated neutron stars.
Popov S.
doaj   +2 more sources

Stellar properties indicating the presence of hyperons in neutron stars [PDF]

open access: yesPhysical Review Research
We describe distinctive stellar features indicating the presence of hyperons in neutron stars as compared to purely nucleonic systems. A strongly negative curvature of the mass-radius relation R(M) is characteristic of hyperons, which can be determined ...
Andreas Bauswein   +9 more
doaj   +2 more sources

Cooling of Neutron Stars [PDF]

open access: yesEPJ Web of Conferences, 2010
We introduce the theoretical basis for modeling the cooling evolution of compact stars starting from Boltzmann equations in curved space-time. We open a discussion on observational verification of different neutron star models by consistent statistics ...
Grigorian H.
doaj   +2 more sources

Hot Neutron Star Matter and Proto-neutron Stars [PDF]

open access: yes, 2023
62 pages, 34 figures; book chapter to appear in "New Phenomena and New States of Matter in the Universe: From Quarks to Cosmos", World Scientific, eds.
Farrell, Delaney   +6 more
openaire   +3 more sources

PROTO-NEUTRON AND NEUTRON STARS [PDF]

open access: yesAstronomy and Relativistic Astrophysics, 2010
Prepared for International Workshop on Astronomy and Relativistic Astrophysics (IWARA 2007), Joao Pessoa, Brazil, 3-6 Oct ...
Dexheimer, V., Schramm, S., Stoecker, H.
openaire   +2 more sources

The origin of the first neutron star – neutron star merger [PDF]

open access: yesAstronomy & Astrophysics, 2018
The first neutron star-neutron star (NS-NS) merger was discovered on August 17, 2017 through gravitational waves (GW170817) and followed with electromagnetic observations. This merger was detected in an old elliptical galaxy with no recent star formation. We perform a suite of numerical calculations to understand the formation mechanism of this merger.
Belczynski, K.   +10 more
openaire   +5 more sources

A Neutron Star Is Born [PDF]

open access: yesUniverse, 2021
A neutron star was first detected as a pulsar in 1967. It is one of the most mysterious compact objects in the universe, with a radius of the order of 10 km and masses that can reach two solar masses. In fact, neutron stars are star remnants, a kind of stellar zombie (they die, but do not disappear).
openaire   +3 more sources

STRANGENESS IN NEUTRON STARS [PDF]

open access: yesInternational Journal of Modern Physics D, 2007
It is generally agreed on that the tremendous densities reached in the centers of neutron stars provide a high-pressure environment in which several intriguing particles processes may compete with each other. These range from the generation of hyperons to quark deconfinement to the formation of kaon condensates and H-matter.
Weber, Fridolin   +3 more
openaire   +2 more sources

Properties and Dynamics of Neutron Stars and Proto-Neutron Stars [PDF]

open access: yes, 2022
Following new developments in the measurement of gravitational waves from neutron–star mergers and the modification or construction of particle colliders to reach larger densities, we are entering a new era, during which we can begin to understand dense ...

core   +1 more source

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