Global ETD Search

21	Extending the observational reach of core-collapse supernovae for IceCube using high-energy neutrinos Valtonen-Mattila, Nora January 2022 (has links) Neutrino telescopes such as IceCube monitor for low-energy neutrinos O(10 MeV) produced in nuclear processes during core-collapse in supernovae. The detection horizon to the neutrino burst is 50 kpc, the distance to the Magellanic Clouds. However, this limits the number of supernovae accessible through low-energy neutrino detection, as the Galactic rate is only <img src="http://www.diva-portal.org/cgi-bin/mimetex.cgi?%5Csim" data-classname="equation" data-title="" />2 per century. Some models predict the production of high-energy O(>GeV) neutrinos through acceleration mechanisms, such as the ejecta colliding with the circumstellar material or relativistic jets in the stellar envelope. This thesis examines how these high-energy neutrinos could be exploited with neutrino telescopes like IceCube to extend the detection horizon to core-collapse supernovae past the Magellanic clouds. To examine the detection horizon for IceCube, we use two data samples, one utilizing muon tracks which provide good sensitivity in the northern sky, and the other all flavor starting events, which provide good sensitivity in the southern sky. We demonstrate that extending the reach past 50 kpc and well into the 10s of Mpc is possible, where the expected rate is more than two core-collapse supernovae per year. Neutrino physics Neutrino astrophysics Supernovae Core-collapse supernovae Particle astrophysics Subatomic Physics Subatomär fysik Astronomy, Astrophysics and Cosmology Astronomi, astrofysik och kosmologi
22	Lepton production in ice by scattering of astrophysical neutrinos at high energies / Leptonenerzeugung im Eis durch Streuung astrophysikalischer Neutrinos bei hohen Energien Hettlage, Christian 23 September 2005 (has links) No description available. 520 Astronomie Mathematics and Computer Science Neutrinoastrophysik Neutrinoquellen Neutrinopropagation Erde Tomographie Neutrinooszillationen Neutrinoteleskope Tau-Neutrino-Regeneration neutrino astrophysics neutrino sources neutrino propagation Earth tomography neutrino oscillations neutrino telescopes tau neutrino regeneration 39.22 TBN 000: Neutrino-Astronomie

Search results

Extending the observational reach of core-collapse supernovae for IceCube using high-energy neutrinos

Lepton production in ice by scattering of astrophysical neutrinos at high energies / Leptonenerzeugung im Eis durch Streuung astrophysikalischer Neutrinos bei hohen Energien