Abstract
The energy radiated in supernova neutrinos is a fundamental quantity that is closely related to the gravitational binding energy of a neutron star. Recently the tidal deformability of neutron stars was constrained by gravitational wave observations. By considering several equations of state, we find a strong correlation between the tidal deformability and neutron star binding energy. We use this correlation to sharpen predictions of the binding energy of neutron stars and the total neutrino energy in supernovae. We find a minimum binding energy for a neutron star formed in a supernova of ∼1.5×1053 ergs. Should the neutrino energy in a supernova be significantly below this value, it would strongly suggest new unobserved particles are carrying away some of the supernova energy. Alternatively, if the neutrino energy is observed above ∼6×1053 ergs, it would strongly imply the formation of a (perhaps surprisingly) massive neutron star.
| Original language | English |
|---|---|
| Article number | 103011 |
| Journal | Physical Review D |
| Volume | 102 |
| Issue number | 10 |
| DOIs | |
| State | Published - 9 Nov 2020 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2020 American Physical Society.
Funding
We would like to thank the anonymous referee for their suggested improvements to this work. We would also like to thank Alex Deibel for providing the APR equation of state. This material is based upon work supported by the U.S. Department of Energy Office of Science, Office of Nuclear Physics under Awards DE-FG02-87ER40365 (Indiana University) and No. DE-SC0018083 (NUCLEI SciDAC Collaboration).
| Funders | Funder number |
|---|---|
| Office of Nuclear Physics | DE-FG02-87ER40365 |
| U.S. Department of Energy Office of Science | |
| Indiana University | DE-SC0018083 |
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