We present results on the formation and evolution of Galaxies with the Spitzer Wide-area Infrared Extragalactic Survey SWIRE Lonsdale et al 2003 the largest of...

We explore the formation and evolution of hydrogen-deficient post-AGB white dwarf stars by computing the complete evolution of an initially 2.7 Msun star from...

We summarize our work on structures in different stages of aggregation, and spanning a wide range in redshift. We emphasize our work on high resdhift clusters...

Solar prominences are composed of many threads of cool and dense plasma suspended in the million-degree solar corona. We have constructed a 3D time-dependent...

Solar prominences are cool and dense plasma suspended in the million-degree solar corona. Recent observations reveal that prominences are composed of fine and...

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We study the problem of the generation and transfer of spectral line intensity and polarization in models of stellar atmospheres with horizontal plasma...

Recently, it has been found that classifying early-type galaxies into fast and slow rotators based on their kinematics is more in accordance with their physical...