E-Dissertationen: Search
Now showing items 1-6 of 6
Galactic massive star forming regions near and far: a (sub)millimeter study of the Orion Molecular Cloud 1 and W49A
(2010-09-10)
Massive stars play an important role in shaping the structure of galaxies due to the large energy output during their lifetime. However, because of the short evolutionary time scales, the large extinction toward their birth ...
Weak Lensing Flexion Study
(2010-09-01)
In this thesis, I studied the higher order weak gravitational lensing effect,flexion, and some of its potential applications in cosmology.
Flexion, as a new subject in lensing, has shown its advantages in various ...
Flexion, as a new subject in lensing, has shown its advantages in various ...
Massive star-forming regions across the Galaxy: Initial stages of massive star formation in infrared high extinction clouds and Trigonometric parallaxes to 6.7GHz methanol masers
(2010-07-02)
Star-forming regions trace the spiral structure of the Galaxy. They are regions of increased column density and therefore traced well by the extinction in the mid-infrared based on the Spitzer/GLIMPSE 3.6-4.5 micron color ...
Cosmic Shear and the Intrinsic Alignment of Galaxies
(2010-11-12)
Cosmology has recently entered an era of increasingly rich observational data sets, all being in agreement with a cosmological standard model that features only a small number of free parameters. One of the most powerful ...
New aspects of star cluster physics
(2010-07-22)
Star clusters are the birth-sites of both low- and high-mass stars and can be considered to be the building blocks of galaxies. Therefore, the understanding of the formation, evolution, and death of star clusters is of ...
Flux Density and VLBI Measurements of the IDV Source 0917+624
(2010-03-29)
Extragalactic compact flat spectrum radio sources are known to be highly variable and about 30% of them show intra-day variability (IDV). The quasar 0917+624 was known to show prominent IDV behaviour from the time it was ...