TY - JOUR
T1 - Thermal Effects in Binary Neutron Star Mergers
AU - Fields, Jacob
AU - Prakash, Aviral
AU - Breschi, Matteo
AU - Radice, David
AU - Bernuzzi, Sebastiano
AU - Schneider, André da Silva
N1 - Publisher Copyright:
© 2023. The Author(s). Published by the American Astronomical Society.
PY - 2023/8/1
Y1 - 2023/8/1
N2 - We study the impact of finite-temperature effects in numerical-relativity simulations of binary neutron star mergers with microphysical equations of state and neutrino transport in which we vary the effective nucleon masses in a controlled way. We find that, as the specific heat is increased, the merger remnants become colder and more compact due to the reduced thermal pressure support. Using a full Bayesian analysis, we demonstrate that this effect will be measurable in the postmerger gravitational wave signal with next-generation observatories at signal-to-noise ratios of 15.
AB - We study the impact of finite-temperature effects in numerical-relativity simulations of binary neutron star mergers with microphysical equations of state and neutrino transport in which we vary the effective nucleon masses in a controlled way. We find that, as the specific heat is increased, the merger remnants become colder and more compact due to the reduced thermal pressure support. Using a full Bayesian analysis, we demonstrate that this effect will be measurable in the postmerger gravitational wave signal with next-generation observatories at signal-to-noise ratios of 15.
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U2 - 10.3847/2041-8213/ace5b2
DO - 10.3847/2041-8213/ace5b2
M3 - Article
AN - SCOPUS:85166935236
SN - 2041-8205
VL - 952
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 2
M1 - L36
ER -