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Non-thermal neutrinos from supernovae leaving a magnetar

Horiuchi, Shunsaku and Suwa, Yudai and Takami, Hajime and Ando, Shin'ichiro and Sato, Katsuhiko (2008) Non-thermal neutrinos from supernovae leaving a magnetar. Monthly Notices of the Royal Astronomical Society, 391 (4). pp. 1893-1899. ISSN 0035-8711. http://resolver.caltech.edu/CaltechAUTHORS:HORmnras08b

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Abstract

Under the fossil field hypothesis of the origin of magnetar magnetic fields, the magnetar inherits its magnetic field from its progenitor. We show that during the supernova of such a progenitor, protons may be accelerated to ∼10^4 GeV as the supernova shock propagates in the stellar envelope. Inelastic nuclear collisions of these protons produce a flash of high-energy neutrinos arriving a few hours after thermal (10 MeV) neutrinos. The neutrino flash is characterized by energies up to O(100) GeV and durations seconds to hours, depending on the progenitor: those from smaller Type Ibc progenitors are typically shorter in duration and reach higher energies compared to those from larger Type II progenitors. A Galactic Type Ib supernova leaving behind a magnetar remnant will yield up to ∼160 neutrino-induced muon events in Super-Kamiokande, and up to ∼7000 in a km^3 class detector such as IceCube, providing a means of probing supernova models and the presence of strong magnetic fields in the stellar envelope.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1111/j.1365-2966.2008.14000.xDOIArticle
http://mnras.oxfordjournals.org/content/391/4/1893PublisherArticle
https://arxiv.org/abs/0807.0267arXivDiscussion Paper
Additional Information:© 2008 The Authors. Journal compilation © 2008 RAS. Accepted 2008 September 24. Received 2008 September 23; in original form 2008 July 1. Published Online: 24 November 2008. We are grateful to Kohta Murase for useful discussions. This study was supported by a grants-in-aid for Scientific Research from the Ministry of Education, Science and Culture of Japan (No. S19104006; SH and KS), Japan Society for Promotion of Science (YS and TH), Sherman Fairchild Foundation (SA) and World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan.
Funders:
Funding AgencyGrant Number
Ministry of Education, Culture, Sports, Science and Technology (MEXT)S19104006
Japan Society for the Promotion of Science (JSPS)UNSPECIFIED
Sherman Fairchild FoundationUNSPECIFIED
Subject Keywords:acceleration of particles; neutrinos; stars: magnetic fields; pulsars: general; supernovae: general
Issue or Number:4
Record Number:CaltechAUTHORS:HORmnras08b
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:HORmnras08b
Official Citation:Shunsaku Horiuchi, Yudai Suwa, Hajime Takami, Shin'ichiro Ando, and Katsuhiko Sato Non-thermal neutrinos from supernovae leaving a magnetar MNRAS (2008) Vol. 391 1893-1899 doi:10.1111/j.1365-2966.2008.14000.x First published online December 21, 2008
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12916
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:12 Jan 2009 20:29
Last Modified:08 Nov 2016 19:05

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