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Now showing items 61-70 of 377
(Master thesis / Masteroppgave, 2010)
Neutrino cosmology is a very interesting field of research,
where properties of some of the smallest constituents of the universe
are probed by the very largest structures of the universe; large scale
structures of the ...
(Master thesis / Masteroppgave, 2010)
The statistical analysis of the Cosmic Microwave Background radiation to make estimates of the Power Spectrum is a comutationally heavy operation, involving large covariance matrices.
In this thesis I explore the possibility ...
(Master thesis / Masteroppgave, 2012)
The solar corona has a temperature of order 1 MK, which is almost 200 times the temperature of the underlying surface. This fact has puzzled solar physicists for more than six decades. As of today, most solar physicists ...
(Master thesis / Masteroppgave, 2010)
We investigate scalar-field theories with a field-dependent coupling to matter and show the existence of a chameleon mechanism. The thin-shell solutions for a spherical body are found, and used to investigate the consequences ...
(Master thesis / Masteroppgave, 2010)
The solar chromosphere is a region where the thermodynamics are out of equilibrium, and realistic values of temperature and electron densities here are difficult to obtain. Hydrogen, being the most abundant element in solar ...
(Master thesis / Masteroppgave, 2010)
The theory of inflation gives certain predictions for the amount of primordial gravitational waves compared to the amount of density perturbations. These predictions are, in principle, verifiable through observation of the ...
(Master thesis / Masteroppgave, 2011)
There have been many reports on anomalies in the CMB from different research groups. In this work statistical tests using the gradients of the CMB temperature, applied to the seven year WMAP data, have been investigated. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
There have been ubiquitous observations of wave-like motions in the solar atmosphere for decades. Recent improvements to space- and ground-based observatories have allowed the focus to shift to smaller magnetic structures ...
(Doctoral thesis / Doktoravhandling, 2014)
(Doctoral thesis / Doktoravhandling, 2013)
This thesis presents an observational study of the dynamics of fine structure in the (mostly lower) atmosphere of solar active regions. The considered phenomena – Ellerman bombs, flocculent flows and coronal rain – are ...