Sökning: "High-Energy astrophysics"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden High-Energy astrophysics.

1. 1. Neutrino Hotspots in the Universe: a Sensitivity Study Using the IceCube Neutrino Observatory

   Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

   Författare :Kiana Ghiassi; Julia Salwén; [2023]
   Nyckelord :Astrophysics; Neutrino Astronomy; Particle Physics; Neutrinos; Blazars; Sensitivity Study; IceCube Neutrino Obesvatory;

   Sammanfattning : In this report, we aim to assess the sensitivity and 5$\sigma$ discovery potential of IceCube, the largest neutrino observatory on Earth, and compare it with prior findings. Our thesis will focus on a point source analysis, exploring the energy and declination dependencies, with particular emphasis on high-energy neutrinos. LÄS MER

3. 2. Extension of the Mission Timeline Simulator with Modern Optimization Capabilities

   Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Författare :Flavia Pérez Cámara; [2022]
   Nyckelord :Optimization; timeline; simulator; matlab; control;

   Sammanfattning : The Advanced Telescope for High-Energy Astrophysics (ATHENA) has been selected as the second large (L-class) mission designed to address the Cosmic Vision science theme “The Hot and Energetic Universe”. The European Space Agency has produced a Mission Observation Plan which contains objectives and constraints of the mission. LÄS MER

4. 3. Assessment of Modern Statistical Modelling Methods for the Association of High-Energy Neutrinos to Astrophysical Sources

   Master-uppsats, KTH/Matematisk statistik

   Författare :Valentin Minoz; [2021]
   Nyckelord :Statistics; Astrophysics; Neutrino sources; Mixture models; Monte Carlo methods; Maximum likelihood estimation; Statistik; Astrofysik; Neutrinokällor; Blandningsmodeller; Monte Carlo-metoder; Maximum likelihood-metoden;

   Sammanfattning : The search for the sources of astrophysical neutrinos is a central open question in particle astrophysics. Thanks to substantial experimental efforts, we now have large-scale neutrino detectors in the oceans and polar ice. LÄS MER

5. 4. Constraints on the High-Energy Gamma-Ray Spectrum of Nearby Star-Forming Galaxies

   Kandidat-uppsats, Stockholms universitet/Fysikum

   Författare :Oskar Svenborn; [2021]
   Nyckelord :Gamma-ray emission; High-Energy astrophysics; Star-Forming Galaxies; Star formation; Cosmic rays; Fermi-LAT.;

   Sammanfattning : The nature of high-energy gamma-ray emission from Star-Forming Galaxies is of utmost importance for understanding both the origin of Cosmic Rays and the high-energy processes that shape galaxy formation. Observations from the gamma-ray telescope Fermi-LAT have detected gamma-ray emission from a handful of nearby Star-Forming Galaxies. LÄS MER

7. 5. Tekniker för detektion av neutriner med ultrahög energi

   Kandidat-uppsats,

   Författare :Lawen Ahmedi; Mubarak Ali; Larisa Castellanos; [2017]
   Nyckelord :Teknik; tekniker; detektion; detektera; detektorer; detektor; observator; elementarpartikel; neutrino; neutriner; ultrahög; energi; fysik; astronomi; astrofysik; kosmisk strålning; radiostrålning; radiostrålar; partikel; partiklar;

   Sammanfattning : This project highlights various methods used to detect the elongated elemental particle neutrino. It is especially focused on the IceCube observatory, which uses Cherenkov light to detect these particles. LÄS MER