Search
Now showing items 11-20 of 116
(Master thesis / Masteroppgave, 2016)
The universe is full of stuff we cannot see, neither directly or indirectly. We do not understand the nature of the mysterious dark matter and how it interacts with normal matter. Big Bang Nucleosynthesis (BBN) provides ...
(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)
(Master thesis / Masteroppgave, 2009)
I have investigated the total energy of Friedmann-Robertson-Walker universes.
This is an interesting issue, because if the energy of the universe turns out not to be conserved, it will be in conflict with our common ...
(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 inverse-C shape of the bisector from the chromospheric Ca triplet spectral lines is a little understood phenomena. This spectral signature can give valuble information about the chromosphere, which is the least understood ...
(Master thesis / Masteroppgave, 2009)
(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. ...
(Master thesis / Masteroppgave, 2008)
Systematic anomalies that seem to follow the first ionisation
potential (FIP) of the minor, heavy elements at the sun, have been
found when comparing the observed elemental abundances in the upper
solar atmosphere with the ...
(Master thesis / Masteroppgave, 2008)
In-situ observations together with spectroscopic measurements show that the elemental abundance in the solar atmosphere varies from the photosphere to solar wind.
An enrichment for low First Ionisation Potential elements ...