Binary Love Relation for the Inspiral of Heavy Neutron Stars

ORAL

Abstract

Because of recent measurements of heavy neutron stars of at least 2 solar masses, there appears to be a strong preference for equations of state of neutron stars that have a sharp rise in the speed of sound as a function of baryon number density above the conformal limit. It was shown in [1] that the Binary Love relation depends on a specific feature of the EoS, which is the baryon number density at which the rise in the speed of sound occurs. Specifically, it was found that one could measure a change in the slope of the Binary Love relation. Here we use a modified Gaussian process to study ~100K equations of state with sharp rises in the speed of sound to study the connection between the rise in the speed of sound and the slope change in the binary love relation.

[1] H. Tan, et al, Phys.Rev.Lett. 128 (2022) 16, 161101

*This material is based upon work supported by the National Science Foundation and the Department of Defense under Grant PHY-1950744. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation or the Department of Defense.

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Presenters

  • Emily Dillingham

    • Berea College

Authors

  • Emily Dillingham

    • Berea College

  • Hung Tan

    • University of Illinois at Urbana-Champai

  • Jacquelyn Noronha-Hostler

    • University of Illinois at Urbana-Champaign

  • Nicolas Yunes

    • University of Illinois at Urbana-Champaign