Browsing by Subject "Sonstige Sternensysteme {Astronomie}"
Now showing items 1-10 of 10
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A new unfolding method for the MAGIC telescope
(Univ. Dortmund, 2008)The presented thesis describes an unfolding method whose principle is to determine the probability that a certain set of events has a certain range of energy. Unfolding methods are not related to the analyzed data and one ... -
Low surface brightness galaxies and their environments
(Univ. Bochum, 2006)In der vorliegenden Dissertation wurde die Lage von Low Surface Brightness (LSB) Galaxien innerhalb der großskaligen Struktur untersucht. Dazu wurde der Sloan Digital Sky Survey herangezogen. Mit diesem Datensatz wurde die ... -
Merger dynamics and stellar populations in the host galaxies of the quasi-stellar objects I Zw 1 and 3C 48
(Univ. Köln, 2005)The thesis focuses on two case studies of the host galaxies of the quasi-stellar objects (QSOs) I Zw 1 and 3C 48. The studies are motivated by the hypothesis that ultra-luminous infrared galaxies (ULIRGs) might represent ... -
Nonlinear electron synchrotron cooling and synchrotron self Compton flaring of TeV blazars
(Univ. Bochum, 2008)We investigate the double-peak profile of the emission of powerful cosmic non-thermal radiation sources with dominant magnetic field self-generation like TeV blazars. Therefore, we assume a flare to occur in the emission ... -
Probing quasar sight lines in three dimensions
(Univ. Potsdam, 2005)Strong damped Lyman alpha absorption (DLA) lines seen spectra of distant quasar are believed to arise when the sight line to the quasar goes trough the disc of a galaxy or a proto galaxy. Most of the neutral matter in the ... -
Properties of quasistellar objects and their progenitors in the radio and mm wavelength regimes in the context of ULIRG-to-QSO evolution
(Univ. Köln, 2010)The thesis at hand presents the results of a study of galaxies with active galactic nuclei (AGN) carried out in the radio and mm wavelength regimes at low and high angular resolutions. The studied objects cover a broad ... -
Search for high energy neutrinos from generic AGN classes with AMANDA-II
(Univ. Dortmund, 2006) -
The transverse proximity effect in quasar spectra
(Univ. Potsdam, 2008)The intergalactic medium is kept highly photoionised by the intergalactic UV background radiation field generated by the overall population of quasars and galaxies. In the vicinity of sources of UV photons, such as luminous ... -
X-ray and optical properties of X-ray luminous active galactic nuclei
(Univ. Potsdam, 2008)Giacconi et al. (1962) discovered a diffuse cosmic X-ray background with rocket experiments when they searched for lunar X-ray emission. Later satellite missions found a spectral peak in the cosmic X-ray background at ~30 ... -
X-ray studies of ultraluminous infrared galaxies observed with XMM-Newton
(Univ. Hamburg, 2006)
