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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Crystalline chiral condensates as a component of compact stars

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Author(s):
Carignano, S. [1] ; Ferrer, E. J. [1] ; de la Incera, V. [1] ; Paulucci, L. [2]
Total Authors: 4
Affiliation:
[1] Univ Texas El Paso, Dept Phys, El Paso, TX 79968 - USA
[2] Univ Fed ABC, BR-09210170 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Physical Review D; v. 92, n. 10 NOV 10 2015.
Web of Science Citations: 14
Abstract

We investigate the influence of spatially inhomogeneous chiral symmetry-breaking condensates in a magnetic field background on the equation of state for compact stellar objects. After building a hybrid star composed of nuclear and quark matter using the Maxwell construction, we find, by solving the Tolman-Oppenheimer-Volkoff equations for stellar equilibrium, that our equation of state supports stars with masses around 2M(circle dot) for values of the magnetic field that are in accordance with those inferred from magnetar data. The inclusion of a weak vector interaction term in the quark part allows one to reach two solar masses for relatively small central magnetic fields, making this composition a viable possibility for describing the internal degrees of freedom of this class of astrophysical objects. (AU)

FAPESP's process: 13/26258-4 - Superdense matter in the universe
Grantee:Manuel Máximo Bastos Malheiro de Oliveira
Support type: Research Projects - Thematic Grants