scholarly journals Supernova neutrinos in the proto-neutron star cooling phase and nuclear matter

2020 ◽  
Vol 1468 ◽  
pp. 012089
Author(s):  
Ken’ichiro Nakazato ◽  
Hideyuki Suzuki
Keyword(s):  
Neutron Star ◽  
Nuclear Matter ◽  
Neutron Star Cooling ◽  
Cooling Phase ◽  
Supernova Neutrinos ◽  
Proto Neutron Star

scholarly journals Developing an end-to-end simulation framework of supernova neutrino detection

2020 ◽  
Author(s):  
Masamitsu Mori ◽  
Yudai Suwa ◽  
Ken’ichiro Nakazato ◽  
Kohsuke Sumiyoshi ◽  
Masayuki Harada ◽  
...  
Keyword(s):  
Neutron Star ◽  
Neutrino Emission ◽  
Neutrino Detectors ◽  
Sn 1987A ◽  
Neutrino Detection ◽  
Time Simulation ◽  
Consistent Manner ◽  
Long Time ◽  
Neutron Star Cooling ◽  
Proto Neutron Star

Abstract Massive stars can explode as supernovae at the end of their life cycle, releasing neutrinos whose total energy reaches 1053erg. Moreover, neutrinos play key roles in supernovae, heating and reviving the shock wave as well as cooling the resulting proto-neutron star. Therefore, neutrino detectors are waiting to observe the next galactic supernova and several theoretical simulations of supernova neutrinos are underway. While these simulation concentrate mainly on only the first one second after the supernova bounce, the only observation of a supernova with neutrinos, SN 1987A, revealed that neutrino emission lasts for more than 10 seconds. For this reason, long-time simulation and analysis tools are needed to compare theories with the next observation. Our study is to develop an integrated supernova analysis framework to prepare an analysis pipeline for treating galactic supernovae observations in the near future. This framework deals with the core-collapse, bounce and proto-neutron star cooling processes, as well as with neutrino detection on earth in a consistent manner. We have developed a new long-time supernova simulation in one dimension that explodes successfully and computes the neutrino emission for up to 20 seconds. Using this model we estimate the resulting neutrino signal in the Super-Kamiokande detector to be about 1,800 events for an explosion at 10 kpc and discuss its implications in this paper. We compare this result with the SN 1987A observation to test its reliability.

scholarly journals SUPERNOVA NEUTRINO LIGHT CURVES AND SPECTRA FOR VARIOUS PROGENITOR STARS: FROM CORE COLLAPSE TO PROTO-NEUTRON STAR COOLING

2013 ◽  
Vol 205 (1) ◽  
pp. 2 ◽  
Author(s):  
Ken'ichiro Nakazato ◽  
Kohsuke Sumiyoshi ◽  
Hideyuki Suzuki ◽  
Tomonori Totani ◽  
Hideyuki Umeda ◽  
...  
Keyword(s):  
Neutron Star ◽  
Light Curves ◽  
Core Collapse ◽  
Neutron Star Cooling ◽  
Supernova Neutrino ◽  
Progenitor Stars ◽  
Proto Neutron Star

Constraints on Estimation of Radius of Double Pulsar PSR J0737-3039A and Its Neutron Star Nuclear Matter Composition

2017 ◽  
Vol 34 (12) ◽  
pp. 129701 ◽  
Author(s):  
Yi-Yan Yang ◽  
Li Chen ◽  
Rong-Feng Linghu ◽  
Li-Yun Zhang ◽  
Ali Taani
Keyword(s):  
Neutron Star ◽  
Nuclear Matter
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