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Universal Relations for Binary Neutron Star Mergers with Long-lived Remnants

  • Book
  • © 2022

Overview

Authors:
  1. Praveen Manoharan

    1. Tübingen, Germany

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Part of the book series: BestMasters (BEST)

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Table of contents (6 chapters)

  1. Front Matter

    Pages i-xiv
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  2. Introduction

    • Praveen Manoharan
    Pages 1-4

  3. Related Work

    • Praveen Manoharan
    Pages 5-18

  4. Theory

    • Praveen Manoharan
    Pages 19-31

  5. Methodology

    • Praveen Manoharan
    Pages 33-36

  6. Results

    • Praveen Manoharan
    Pages 37-56

  7. Discussion & Conclusion

    • Praveen Manoharan
    Pages 57-58

  8. Back Matter

    Pages 59-65
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Keywords

About this book

In the last 25 years, an extensive body of work has developed various equation of state independent - or (approximately) universal - relations that allow for the inference of neutron star parameters from gravitational wave observations. These works, however, have mostly been focused on singular neutron stars, while our observational efforts at the present, and in the near future, will be focused on binary neutron star (BNS) mergers. In light of these circumstances, the last five years have also given rise to more attempts at developing universal relations that relate BNS pre-merger neutron stars to stellar parameters of the post-merger object, mostly driven by numerical relativity simulations. In this thesis a first attempt at perturbatively deriving universal relations for binary neutron star mergers with long-lived neutron star remnants is presented. The author succeeds in confirming previous results relating pre-merger binary tidal deformabilities to the f-mode frequency of the post-merger object. Combining this result with recent advances of computing the f-mode frequency of fast rotating neutron stars, he also derives a combined relation that relates the pre-merger binary tidal deformability of a BNS to the effective compactness of a long-lived neutron star remnant. Finally, he also proposes a direct relation between these quantities with improved accuracy. 

Authors and Affiliations

  • Tübingen, Germany

    Praveen Manoharan

About the author

About the author 
Praveen Manoharan is PhD student at Tübingen University, Institute for Theoretical Astrophysics.


Bibliographic Information

  • Book Title: Universal Relations for Binary Neutron Star Mergers with Long-lived Remnants

  • Authors: Praveen Manoharan

  • Series Title: BestMasters

  • DOI: https://doi.org/10.1007/978-3-658-36841-8

  • Publisher: Springer Spektrum Wiesbaden

  • eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)

  • Copyright Information: The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Fachmedien Wiesbaden GmbH, part of Springer Nature 2022

  • Softcover ISBN: 978-3-658-36840-1Published: 29 March 2022

  • eBook ISBN: 978-3-658-36841-8Published: 28 March 2022

  • Series ISSN: 2625-3577

  • Series E-ISSN: 2625-3615

  • Edition Number: 1

  • Number of Pages: XIV, 65

  • Number of Illustrations: 20 b/w illustrations

  • Topics: Astronomy, Astrophysics and Cosmology, Astrophysics and Astroparticles

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