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Neutron Stars—Possibilities and Limits for Exotic Phases

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New Horizons in Fundamental Physics

Part of the book series: FIAS Interdisciplinary Science Series ((FIAS))

Abstract

Neutron star physics has become one of the central topics of nuclear astrophysics. The extremely high densities in the core region of neutron stars potentially allow for exotic particles and phases to exist. This includes hyperons, quarks, as well as meson condensates. Exotic phases, however, tend to soften the equation of state, thereby reducing the maximum star masses that can be obtained. In this context, the discovery of 2-solar-mass neutron stars in recent year has led to significant constraints on the amount and type of exotic matter in the stellar interior. The article presents a partial survey of possible exotica in neutron stars.

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Acknowledgments

The authors acknowledge support from NewCompStar. SWS acknowledges financial support from the LOEWE program HIC for FAIR and the Helmholtz virtual institute NAVI. Numerical calculations were performed on the systems of the Center for Scientific Computing, Goethe University, Frankfurt.

Author information

Authors and Affiliations

  1. FIAS, Ruth-Moufang-Str. 1, 60438, Frankfurt am Main, Germany

    S. Schramm

  2. Department of Physics, Kent State University, Kent, OH, 44242, USA

    V. Dexheimer

  3. Indian Institute of Science Education and Research Bhopal, Bhopal, India

    R. Mallick

Authors
  1. S. Schramm
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  2. V. Dexheimer
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  3. R. Mallick
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Corresponding author

Correspondence to S. Schramm .

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Editors and Affiliations

  1. FIAS, Goethe University FIAS, Frankfurt, Hessen, Germany

    Stefan Schramm

  2. Frankfurt Inst. for Advanced Studies, FIAS Frankfurt Inst. for Advanced Studies, Frankfurt am Main, Germany

    Mirko Schäfer

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Schramm, S., Dexheimer, V., Mallick, R. (2017). Neutron Stars—Possibilities and Limits for Exotic Phases. In: Schramm, S., Schäfer, M. (eds) New Horizons in Fundamental Physics. FIAS Interdisciplinary Science Series. Springer, Cham. https://doi.org/10.1007/978-3-319-44165-8_22

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