Journal article
NMMA: A nuclear-physics and multi-messenger astrophysics framework to analyze binary neutron star mergers
Nature Commun, v 14(1)
2023
Abstract
The multi-messenger detection of the gravitational-wave signal GW170817, the corresponding kilonova AT2017gfo and the short gamma-ray burst GRB170817A, as well as the observed afterglow has delivered a scientific breakthrough. For an accurate interpretation of all these different messengers, one requires robust theoretical models that describe the emitted gravitational-wave, the electromagnetic emission, and dense matter reliably. In addition, one needs efficient and accurate computational tools to ensure a correct cross-correlation between the models and the observational data. For this purpose, we have developed the NMMA (Nuclear-physics and Multi-Messenger Astrophysics) framework. The code allows incorporation of nuclear-physics constraints at low densities as well as X-ray and radio observations of isolated neutron stars. It also enables us to classify electromagnetic observations, e.g., to distinguish between supernovae and kilonovae. In previous works, the NMMA code has allowed us to constrain the equation of state of supranuclear dense matter, to measure the Hubble constant, and to compare dense-matter physics probed in neutron-star mergers and in heavy-ion collisions. The extension of the NMMA code presented here is the first attempt of analysing the gravitational-wave signal, the kilonovae, and the GRB afterglow simultaneously, which reduces the uncertainty of our constraints. Incorporating all available information, we estimate the radius of a 1.4 solar mass neutron star to be $R=11.98^{+0.35}_{-0.40}$ km.
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Details
- Title
- NMMA: A nuclear-physics and multi-messenger astrophysics framework to analyze binary neutron star mergers
- Creators
- Peter T.H. Pang - National Institute for Subatomic PhysicsTim Dietrich - University of PotsdamMichael W. Coughlin - University of MinnesotaMattia Bulla - Stockholm UniversityIngo Tews - Los Alamos National LaboratoryMouza Almualla - American University of SharjahTyler Barna - University of MinnesotaWeizmann Kiendrebeogo - Université Grenoble AlpesNina Kunert - University of PotsdamGargi Mansingh - University of MinnesotaBrandon Reed - University of MinnesotaNiharika Sravan - Drexel UniversityAndrew Toivonen - University of MinnesotaSarah Antier - Université Côte d'AzurRobert O. Vandenberg - University of MinnesotaJack Heinzel - Massachusetts Institute of TechnologyVsevolod Nedora - Max Planck Institute for Gravitational PhysicsPouyan Salehi - University of PotsdamRitwik SharmaRahul Somasundaram - Los Alamos National LaboratoryChris van den Broeck - Utrecht University
- Publication Details
- Nature Commun, v 14(1)
- Publisher
- Springer Nature
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:001128854200029
- Scopus ID
- 2-s2.0-85180214203
- Other Identifier
- 991021877362304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics