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摘要
This paper is a sequel to our 2015 paper, Kato et al., which calculated the luminosities and spectra of electron-type anti-neutrinos ((v) over bar (e)) from the progenitors of core-collapse supernovae. Expecting that the capability to detect electron-type neutrinos (ne) will increase dramatically with the emergence of liquid-argon detectors such as DUNE, we broaden the scope in this study to include all flavors of neutrinos emitted from the pre-bounce phase. We pick up three progenitor models of electron capture supernovae (ECSNe) and iron-core collapse supernovae (FeCCSNe). We find that the number luminosities reach similar to 10(57) s(-1). and similar to 10(53) s(-1) at maximum for v(e) and (v) over bar (e), respectively. We also estimate the numbers of detection events at terrestrial neutrino detectors including DUNE, taking flavor oscillations into account and assuming the distance to the progenitors to be 200 pc. It is demonstrated that (v) over bar (e) from the ECSN progenitor will be undetected at almost all detectors, whereas we will be able to observe greater than or similar to 15,900 v(e) at DUNE for the inverted mass hierarchy. From the FeCCSN progenitors, the number of (v) over bar (e) events will be largest for JUNO, 200-900 v(e), depending on the mass hierarchy, whereas the number of ne events at DUNE is greater than or similar to 2100 for the inverted mass hierarchy. These results imply that the detection of (v) over bar (e) is useful to distinguish progenitors of FeCCSNe from those of ECSNe, while ne will provide us with detailed information on the collapse phase regardless of the type and mass of the progenitor.
- 出版日期2017-10-10
- 单位RIKEN
