Search for dissertations about: "Kosmisk strålning"
Showing result 16 - 20 of 31 swedish dissertations containing the words Kosmisk strålning.
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16. Laboratory and stellar spectroscopy of the complex ions Fe+, Mo+, Th+ and U+
Abstract : The new generation of high resolution astronomical instruments such as the Hubble Space Telescope (HST) or the Very Large Telescope (VLT) has renewed the demand for accurate atomic parameters like wavelengths, oscillator strengths and line profiles accompanied by reliable uncertainty estimates. Fourier transform spectroscopy has proven to be a powerful tool when measuring these parameters. READ MORE
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17. Hubble Space Telescope Spectroscopy of Eta Carinae and Chi Lupi
Abstract : Eta Carinae is a super-massive, super-luminous star. It is surrounded by a bipolar nebula, the "Homunculus", and several blobs of ejected gas which are the source of a complex emission-line spectrum. READ MORE
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18. Multi-messenger emission from gamma-ray bursts
Abstract : Multi-messenger astronomy is a very hot topic in the astrophysical community. A messenger is something that carries information. Different astrophysical messenger types are photons, cosmic rays, neutrinos, and gravitational waves. They all carry unique and complementary information to one another. READ MORE
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19. Cosmic clues from astrophysical particles
Abstract : Ultra-high-energy cosmic rays (UHECRs) are charged particles that have been accelerated to extreme energies, such that they are effectively travelling at the speed of light. Interactions of these particles with the Earth’s atmosphere lead to the development of extensive showers of particles and radiation that can be measured with existing technology. READ MORE
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20. Investigating the potential of current and future neutrino detectors to identify the sources of the astrophysical neutrinos seen by IceCube
Abstract : High energy neutrino astronomy aims to view the universe with a new messenger, the neutrino. This messenger provides another window onto the universe, complementing what we can learn from photons, cosmic rays, and gravitational waves. READ MORE