Gravitational waves from a core g-mode in supernovae as probes of the high-density equation of state
- Using relativistic supernova simulations of massive progenitor stars with a quark-hadron equation of state (EoS) and a purely hadronic EoS, we identify a distinctive feature in the gravitational-wave signal that originates from a buoyancy-driven mode (g-mode) below the proto-neutron star convection zone. The mode frequency lies in the range 200≲f≲800Hz and decreases with time. As the mode lives in the core of the proto-neutron star, its frequency and power are highly sensitive to the EoS, in particular the sound speed around twice saturation density.
Author: | Pia JakobusORCiD, Bernhard MüllerORCiDGND, Alexander HegerORCiDGND, Shuai ZhaORCiD, Jade PowellORCiD, Anton MotornenkoORCiDGND, Jan SteinheimerORCiDGND, Horst StöckerORCiDGND |
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URN: | urn:nbn:de:hebis:30:3-862910 |
URL: | https://arxiv.org/abs/2301.06515v1 |
DOI: | https://doi.org/10.48550/arXiv.2301.06515 |
ArXiv Id: | http://arxiv.org/abs/2301.06515v1 |
Parent Title (English): | arXiv |
Publisher: | arXiv |
Document Type: | Preprint |
Language: | English |
Date of Publication (online): | 2023/01/16 |
Date of first Publication: | 2023/01/16 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2024/07/21 |
Issue: | 2301.06515v1 |
Edition: | Version 1 |
Page Number: | 13 |
Institutes: | Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS) |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Sammlungen: | Universitätspublikationen |
Licence (German): | Creative Commons - CC BY - Namensnennung 4.0 International |