Zobrazeno 1 - 10
of 15
pro vyhledávání: '"David Edwin Alvarez-Castillo"'
Was GW170817 a Canonical Neutron Star Merger? Bayesian Analysis with a Third Family of Compact Stars
Publikováno v:
Universe, Vol 6, Iss 6, p 81 (2020)
We investigate the possibility that GW170817 was not the merger of two conventional neutron stars (NS), but involved at least one if not two hybrid stars with a quark matter core that might even belong to a third family of compact stars. To this end,
Externí odkaz:
https://doaj.org/article/0eece708c4f1462aa640fdb01d2133be
Breaking Pseudo-Rotational Symmetry through H_+^2 Metric Deformation in the Eckart Potential Problem
Publikováno v:
Symmetry, Integrability and Geometry: Methods and Applications, Vol 7, p 113 (2011)
The peculiarity of the Eckart potential problem on H_+^2 (the upper sheet of the two-sheeted two-dimensional hyperboloid), to preserve the (2l+1)-fold degeneracy of the states typical for the geodesic motion there, is usually explained in casting the
Externí odkaz:
https://doaj.org/article/a4291492aed6429380dc000b23a0456d
Autor:
Michał Niedźwiecki, Jerzy Pryga, Olaf Bar, Krzysztof Woźniak, Krzysztof Rzecki, Łukasz Bibrzycki, Kévin Almeida Cheminant, Sławomir Stuglik, Tomasz Sośnicki, Arman Tursunov, Marcin Piekarczyk, David Edwin Alvarez-Castillo, Tadeusz Wibig, Piotr Homola, Weronika Stanek
Publikováno v:
Universe; Volume 8; Issue 8; Pages: 425
One of the main objectives of the CREDO project is to register cosmic-ray cascades in many distributed detectors in the search for so-called Cosmic-Ray Ensembles (CRE). This requires precise knowledge of the probability of detection of individual Ext
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f7f82e2219e4c2cf89d59e246b5a933
Autor:
David Edwin Alvarez-Castillo
The study of the variation of fundamental constants through time or in localized regions of space is one of the goals of the Cosmic Ray Extremely Distributed Observatory which consists of multiple detectors over the Earth. In this paper, the various
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a7c60e0bc2148f8219a6d3a8a276c65
Publikováno v:
INSPIRE-HEP
We discuss the observation that under neutron star conditions of charge neutrality and $\beta-$equilibrium the contribution from the symmetry energy to the equation of state (EoS) follows a universal behaviour. We call this behaviour the conjecture o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bb3e8da3a125e4bc569e4e57c4c9d93
http://arxiv.org/abs/1604.08575
http://arxiv.org/abs/1604.08575
Autor:
David Edwin Alvarez-Castillo
Publikováno v:
INSPIRE-HEP
In this work we study the case of deconfinement in compact star interiors in the presence of a strong first order phase transition associated to a critical end point in the QCD phase diagram. Neutron stars fulfilling these conditions show a third bra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1489327f221f875c37b00e0360471ee9
Publikováno v:
INSPIRE-HEP
We perform a Bayesian analysis in the basis of a recently developed two-parameter class of hybrid equations of state that allow for high-mass compact star twins. While recently a wide range of radii, from 9 - 15 km, has been inferred for different ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98fc0c0bdd92d69b05b6f52d18e69bce
Publikováno v:
INSPIRE-HEP
We perform a Bayesian analysis of probability measures for compact star equations of state using new, disjunct constraints for mass and radius. The analysis uses a simple parametrization for hybrid equations of state to investigate the possibility of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adc38665188f3b9df9b21e8cbbfae54c
Publikováno v:
Proceedings of 8th International Workshop on Critical Point and Onset of Deconfinement — PoS(CPOD 2013).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ba22769ea456bd4023755a81182977d
https://doi.org/10.22323/1.185.0063
https://doi.org/10.22323/1.185.0063
Publikováno v:
INSPIRE-HEP
We present a model for hybrid compact stars composed of a quark core and a hadronic mantle with an abrupt first order phase transition at the interface and in accordance with the latest astrophysical measurements of two 2 M_sun pulsars. We demonstrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36cdfd024746d13ecf5ca6f9f3cc3377