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(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, 2016)
Recent observations support a significantly reduced visibility of Lyman-α (Lyα) flux from galaxies at redshifts z > 6. This is surprising considering that the visibility of Lyα flux has been observed to increase up towards ...
(Master thesis / Masteroppgave, 2016)
Several decades ago it was discovered that the outer layers of the Sun are much hotter than the photosphere. The mechanism or mechanisms heating the outer solar layers are not known, so this is known as the coronal heating ...
(Master thesis / Masteroppgave, 2016)
(Master thesis / Masteroppgave, 2016)
If dark matter, after it has become non-relativistic, scatters elastically with a relativistic heat bath particle, then the resulting pressure leads to acoustic oscillations that suppress the growth of overdensities in the ...
(Master thesis / Masteroppgave, 2016)
(Master thesis / Masteroppgave, 2016)
Spherical collapse is a crude, but useful toy model for structure formation in an expanding universe. Previous works have looked at this model in ΛCDM with massive neutrinos, where the primary findings were that massive ...
(Master thesis / Masteroppgave, 2016)
The Planck Sunyaev-Zeldovich Cluster catalogue provides an all-sky set of SZ detected galaxy clusters, which is the first of its kind. SZ signals are independent of redshift which allows a greater volume of space to be ...
(Master thesis / Masteroppgave, 2016)