The role of magnetic fields in hyperon stars

Journal Article · Fri May 09 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4875322· OSTI ID:22280400

Gomes, R. O.; Vasconcellos, C. A. Z. ^[1]; Dexheimer, V. ^[2]

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1. Instituto de Física - Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-970 (Brazil)
2. Department of Physics - Kent State University, Kent, OH 44242 (United States)

We investigate the effects of strong magnetic fields (SMF) on the properties of neutron stars that have hyperons in their composition. The matter is described by a hadronic model in which a parameterized and derivative coupling between hadrons and mesons is considered. We study the magnetic effects on the equation of state (EoS) from Landau quantization, assuming a density dependent static magnetic field that reaches 10{sup 19} G in the center of the star. The Tolman- Oppenheimer-Volkoff (TOV) equations are solved in order to show the dependence of the massradius relation and population of hyperon stars on the central magnetic field and on different hyperon coupling schemes.

• OSTI ID: 22280400
• Journal Information: AIP Conference Proceedings, Vol. 1595, Issue 1; Conference: 7. European summer school on experimental nuclear astrophysics, Santa Tecla, Sicily (Italy), 15-17 Sep 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTROPHYSICS
COSMOLOGY
COUPLING
DENSITY
EQUATIONS OF STATE
HYPERONS
MAGNETIC FIELDS
NEUTRON STARS
NUCLEAR MATTER
QUANTIZATION