Search for dissertations about: "Photometry"
Showing result 16 - 20 of 30 swedish dissertations containing the word Photometry.
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16. A study of the Hercules dwarf spheroidal galaxy
Abstract : Parts of large spiral galaxies, such as the Milky Way and Andromeda, are believed to have formed from the accretion of several smaller galaxies. Remnants of this chaotic merging era, such as dwarf spheroidal (dSph) galaxies, are visible in the outskirts of large galaxies. READ MORE
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17. Inside Pulsating White Dwarfs: Clues from time-resolved spectroscopy
Abstract : Several analyses using time-resolved optical spectrocopy of pulsating white dwarfs are presented. The data have been put to a number of uses. First, line-of-sight velocities associated with the pulsations have been measured in three hydrogen-atmosphere white dwarfs (DAVs), bringing the total number of such measurements up to five. READ MORE
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18. From Photons to Worlds: An odyssey in exoplanet detection and characterisation
Abstract : Since the first unambiguous detection of a planet around a Sun-like, the interest in the new and exciting field of exoplanets has grown immensely. New and exciting developments are seen at a pace unparalleled for most subfields of astronomy and astrophysics. READ MORE
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19. Star clusters as engines of galaxy evolution
Abstract : Stars form and live in hierarchical structures such as star clusters on the smallest scales up to groups of galaxies on the largest scales. The role of young and massive star clusters in the evolution of the host galaxies is one of the most active fields of research in modern astronomy. READ MORE
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20. Rocket-borne in situ measurements in the middle atmosphere
Abstract : The Earth's mesosphere and lower thermosphere in the altitude range 50-130 km is a fascinating part of our atmosphere. Complex interactions between radiative, dynamical, microphysical and chemical processes give rise to several prominent phenomena, many of those centred around the mesopause region (80-100 km). READ MORE