Supernova Dynamo Effect in Neutrino Spectra and Perspective of Observations by Large Volume Telescopes

被引：0

作者：

Kondratyev, V. N. ^{[1
,2
]}

Khor'kova, N. G. ^{[3
]}

Cherubini, S. ^{[4
]}

机构：

[1] JINR, Bogoliubov Lab Theoret Phys, Dubna, Russia

[2] Dubna State Univ, Dubna, Russia

[3] Bauman Moscow State Tech Univ, Moscow, Russia

[4] Univ Catania, Dept Phys & Astron Ettore Majorana, Catania, Italy

来源：

PHYSICS OF PARTICLES AND NUCLEI LETTERS | 2023年 / 20卷 / 03期

关键词：

nuclear astrophysics; supernovae; neutrinos;

D O I：

10.1134/S1547477123030391

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Neutrino fluxes near the surface of a protoneutron star in type II supernovae are studied. For dynamoactive supernovae it is shown that effective neutrino collisions in a magnetized nucleon gas caused by the neutral current Gamow-Teller component lead to neutrino acceleration. Such an increase in a hardness of the energy spectrum is favorable for observations of supernova neutrinos using neutrino telescopes. The possibilities of detecting supernova neutrinos by large-volume observatories: KM3NeT and Baikal-GVD, are discussed. It is demonstrated that the use of the k-fold coincidence technique in data processing makes it possible to increase upper limits of the distance thresholds for observations by a factor of vk.

引用

页码：466 / 472

页数：7

共 22 条

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