Search for dissertations about: "quasars: general"
Found 4 swedish dissertations containing the words quasars: general.
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1. Quasars and Low Surface Brightness Galaxies as Probes of Dark Matter
Abstract : Most of the matter in the Universe appears to be in some form which does not emit or absorb light. While evidence for the existence of this dark matter has accumulated over the last seventy years, its nature remains elusive. READ MORE
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2. Observations and astrophysical modelling of the interstellar medium
Abstract : .... READ MORE
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3. Interstellar absorption across the electromagnetic spectrum
Abstract : We report results of a multi-wavelength study of interstellar absorption in diffuse molecular clouds that lie in the direction of flat-spectrum quasars. Quasars as back-ground sources allow the measurement of Galactic interstellar absorption across the electromagnetic spectrum from mm to X-ray wavelengths. READ MORE
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4. Investigating the Dark Universe through Gravitational Lensing
Abstract : A variety of precision observations suggest that the present universe is dominated by some unknown components, the so-called dark matter and dark energy. The distribution and properties of these components are the focus of modern cosmology and we are only beginning to understand them. READ MORE