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Title: The role of magnetic fields in hyperon stars

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.
Authors:
;  [1] ;  [2]
  1. Instituto de FĂ­sica - 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)
Publication Date:
OSTI Identifier:
22280400
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1595; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; COSMOLOGY; COUPLING; DENSITY; EQUATIONS OF STATE; HYPERONS; MAGNETIC FIELDS; NEUTRON STARS; NUCLEAR MATTER; QUANTIZATION