TY - JOUR
T1 - Finding Structure in the Speed of Sound of Supranuclear Matter from Binary Love Relations
AU - Tan, Hung
AU - Dexheimer, Veronica
AU - Noronha-Hostler, Jacquelyn
AU - Yunes, Nicolás
N1 - Publisher Copyright:
© 2022 American Physical Society
PY - 2022/4/22
Y1 - 2022/4/22
N2 - Analyses that connect observations of neutron stars with nuclear-matter properties can rely on equation-of-state insensitive relations. We show that the slope of the binary Love relations (between the tidal deformabilities of binary neutron stars) encodes the baryon density at which the speed of sound rapidly changes. Twin stars lead to relations that present a signature "hill,""drop,"and "swoosh"due to the second (mass-radius) stable branch, requiring a new description of the binary Love relations. Together, these features can reveal new properties and phases of nuclear matter.
AB - Analyses that connect observations of neutron stars with nuclear-matter properties can rely on equation-of-state insensitive relations. We show that the slope of the binary Love relations (between the tidal deformabilities of binary neutron stars) encodes the baryon density at which the speed of sound rapidly changes. Twin stars lead to relations that present a signature "hill,""drop,"and "swoosh"due to the second (mass-radius) stable branch, requiring a new description of the binary Love relations. Together, these features can reveal new properties and phases of nuclear matter.
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U2 - 10.1103/PhysRevLett.128.161101
DO - 10.1103/PhysRevLett.128.161101
M3 - Article
C2 - 35522491
AN - SCOPUS:85129286310
SN - 0031-9007
VL - 128
JO - Physical review letters
JF - Physical review letters
IS - 16
M1 - 161101
ER -