Constraint on the maximum mass of neutron stars using GW170817 event

By M. Shibata, E. Zhou, Kentaro Kiuchi, S. Fujibayashi. Physical Review D, 2019

173 citations recorded by the source corpus.

We revisit the constraint on the maximum mass of cold spherical neutron stars coming from the observational results of GW170817. We develop a new framework for the analysis by employing both energy and angular momentum conservation laws as well as solid results of latest numerical-relativity simulations and of neutron stars in equilibrium. The new analysis shows that the maximum mass of cold spherical neutron stars can be only weakly constrained as $M_{\rm max} \alt 2.3M_\odot$. Our present result illustrates that the merger remnant neutron star at the onset of collapse to a black hole is not necessarily rapidly rotating and shows that we have to take into account the angular momentum conservation law to impose the constraint on the maximum mass of neutron stars.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/fb0f99dc78eccd3f6441adab9dfe7e561361075d

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In Astronomy and Astrophysics

1. B. Metzger
2. B. Margalit
3. Bing Zhang
4. E. Berger
5. P. Lasky
6. Diego Rubiera-García
7. Ilya Mandel
8. Aneta Wojnar

Citations in the corpus

• Neutron Star Extreme Matter Observatory: A kilohertz-band gravitational-wave detector in the global network (2020, background): “That information, together with gravitational-wave observations elucidating the nature of the remnant (e.g., Shibata et al. 2019) and time it takes for the remnant to collapse to a black hole (Lucca & Sagunski 2020; Easter, Lasky, & Casey 2020), will be as important to our understanding of…”
• Stellar structure models in modified theories of gravity: Lessons and challenges (2019, background): “There are further observational weapons available to this challenge, such as the measurement of neutron stars’ moment of inertia [32], as well as the analysis of gravitational wave and gamma ray burst data from binary neutron star mergers [33, 34, 35, 36], which allows to place constraints on tidal ”
• Constraining the Dense Matter Equation of State with Joint Analysis of NICER and LIGO/Virgo Measurements (2019, background): “A number of studies have further included additional constraints from the electromagnetic counterparts assuming a NS-NS progenitor (Bauswein et al. 2017; Gao et al. 2017; Coughlin et al. 2018; Most et al. 2018; Capano et al. 2020; Margalit & Metzger 2019; Radice & Dai 2019; Shibata et al. 2019).”
• Towards understanding astrophysical effects of nuclear symmetry energy (2019, unknown): “2.0 2.1 2.2 2.3 2.4 2.5 2.6 Baym et al. (2019) Shibata et al. (2019) Zhou et al. (2018) with pairing Zhou et al. (2018) Zhang & Li (2018) Shibata et al. (2018) Ruiz et al. (2018) Rezzolla et al. (2018) Margalit et al. (2017) Mmax [Msun] Fig.”
• Fast Radio Bursts from Magnetars Born in Binary Neutron Star Mergers and Accretion Induced Collapse (2019, background): “If the NS maximal mass were slightly higher (e.g., Lasky et al. 2014; Lü et al. 2015; Gao et al. 2016; Shibata et al. 2019) then the fraction of BNS mergers that produce stable magnetar remnants would increase.”