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 |
