Cost of inferred nuclear parameters towards the f-mode dynamical tide in binary neutron stars
arxiv(2023)
摘要
Gravitational Wave (GW) observations from Neutron Stars (NS) in a binary
system provide an excellent scenario to constrain the nuclear parameters. The
investigation of Pratten et al. (2022) has shown that the ignorance of f-mode
dynamical tidal correction in the GW waveform model of the binary neutron star
(BNS) system can lead to substantial bias in the measurement of NS properties
and NS equations of state (EOS). In this work, we investigate the bias in the
nuclear parameters resulting from the ignorance of dynamical tidal correction.
In addition, this work demonstrates the sensitivity of the nuclear parameters
and the estimated constraints on them from future GW observations. We infer the
nuclear parameters from GW observations by describing the NS matter within the
relativistic mean field model. For a population of GW events, we notice that
the ignorance of dynamical tide predicts a lower median for nucleon effective
mass (m^*) by ∼6% compared to the scenario when dynamical tidal
correction is considered. Whereas at a 90% credible interval(CI), m^* gets
constrained up to ∼ 5% and ∼ 3% in A+ (the LIGO-Virgo detectors
with a sensitivity of 5th observing run) and Cosmic Explorer (CE) respectively.
We also discuss the resulting constraints on all other nuclear parameters,
including compressibility, symmetry energy, and slope of symmetry energy,
considering an ensemble of GW events. We do not notice any significant impact
in analyzing nuclear parameters other than m^* due to the ignorance of f-mode
dynamical tides.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要