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 - This work was supported in part by the NSF within the framework of the MUSES collaboration, under Grant No. OAC-2103680. J. N. H. acknowledges the support from the US-DOE Nuclear Science Grant No. DE-SC0020633. H. T. and N. Y. acknowledge support from NASA Grants No. NNX16AB98G, No. 80NSSC17M0041, and No. 80NSSC18K1352 and NSF Grant No. 1759615. V. D. acknowledges support from the National Science Foundation under Grants No. PHY-1748621 and No. NP3M PHY-2116686, and PHAROS (COST Action CA16214). The authors also acknowledge support from the Illinois Campus Cluster, a computing resource that is operated by the Illinois Campus Cluster Program (ICCP) in conjunction with the National Center for Supercomputing Applications (NCSA), and which is supported by funds from the University of Illinois at Urbana-Champaign.
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.
UR - https://www.scopus.com/pages/publications/85129286310
UR - https://www.scopus.com/inward/citedby.url?scp=85129286310&partnerID=8YFLogxK
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 -