Pulsational Pair-instability Supernovae. II. Neutrino Signals from Pulsations and Their Detection by Terrestrial Neutrino Detectors
Abstract
A Pulsational Pair-instability supernova (PPISN) evolves from a massive star with a mass ~80–140 M⊙ that develops electron–positron pair-instability after hydrostatic He-burning in the core has finished. In Leung et al. (Paper I), we examined the evolutionary tracks and the pulsational mass-loss history of this class of stars. In this paper, we analyze the thermodynamical history to explore the neutrino observables of PPISNe. We compute the neutrino light curves and spectra during pulsation. We then study the detailed neutrino emission profiles of these stars and estimate the expected neutrino detection count for different terrestrial neutrino detectors, including, e.g., KamLAND and Super-Kamiokande. Finally, we compare the neutrino pattern of PPISN with other types of supernovae based on a canonical 10 kt detector. The predicted neutrino signals can provide an early warning for telescopes to trace for the early time optical signals. The implications of neutrino physics on the expected detection are also discussed.
Additional Information
© 2020 The American Astronomical Society. Received 2019 September 22; revised 2019 December 13; accepted 2019 December 14; published 2020 January 28. This work has been supported by the World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan, and JSPS KAKENHI grant Nos. JP17K05382 and 26104007 (Kakenhi). Work by S.B. on PPISN is supported by the Russian Science Foundation grant 19-12-00229. S.C.L. also acknowledges support by funding from HST-AR-15021.001-A. We thank F. X. Timmes for his open-source microphysics algorithm including the Helmholtz equation of state subroutine and the neutrino subroutine sneut5. We also thank A. Odrzywolek for supplying the open-source pair-neutrino table for cross-checking with other approximation formula. We also thank Professor Mark Vagins for the informative introduction on the neutrino detection techniques and guidance in the Super-Kamiokande and KamLAND detection site.Attached Files
Published - Leung_2020_ApJ_889_75.pdf
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Additional details
- Eprint ID
- 100975
- Resolver ID
- CaltechAUTHORS:20200128-144611599
- JP17K05382
- Japan Society for the Promotion of Science (JSPS)
- 26104007
- Ministry of Education, Culture, Sports, Science and Technology (MEXT)
- 19-12-00229
- Russian Science Foundation
- HST-AR-15021.001-A
- NASA Hubble Fellowship
- Created
-
2020-01-28Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Caltech groups
- TAPIR, Walter Burke Institute for Theoretical Physics