14–17 Jun 2019
Other Institutes
Canada/Eastern timezone

Pre-SN neutrino emission from massive stars and its importance for multi-messengers

Not scheduled
30m
Other Institutes

Other Institutes

Laurentian University 935 Ramsey Lake Rd, Sudbury, ON P3E 2C6
Invited Talk Invited talks II

Speaker

Ms Chinami Kato (Tohoku University)

Description

Pre-supernova (pre-SN) neutrinos are emitted from a core of massive stars, which are supposed to be progenitors of core-collapse supernovae. Although it was seemed to be difficult to detect pre-SN neutrinos because of their low energy, detection of pre-SN neutrinos comes into view owing to the recent development of detectors. We believe that future detection of pre-SN neutrinos will give us a big impact as much as the historical neutrino events at SN1987A. In this talk, I will introduce two importance of pre-SN neutrino observations: evidence for the theory of stellar evolution and SN alarm. Especially, I focus on the latter. We may detect pre-SN neutrino signals only from our vicinity (< 1 kpc) and a Galactic SN rate is only once per a few hundreds of years, unfortunately, even if we extend the distance to 10 kpc. Therefore, we never miss the next nearby SN. A SN alarm triggered by detection of pre-SN neutrinos will give us an enough time to prepare for other types of observations with SN explosion and contribute to our understanding of SN explosions.

Primary author

Ms Chinami Kato (Tohoku University)

Presentation materials

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