Astrophysics Seminars

Weak lensing of high redshift galaxies and quasars leads to a well known adjustment of galaxy/quasar source counts called magnification bias. I will discuss how magnification bias complicates high redshift measurements of the integrated Sachs Wolfe...

The European Southern Observatory is an intergovernmental organization for astronomy, created in 1962 by Belgium, France, Germany, Sweden and The Netherlands, and today has 13 member states. Headquarters are located in Garching near Munich. ESO's...

Shock waves are generic phenomena that are ubiquitous in Nature across a wide range of physical parameters. I highlight recent work done on hydrogen shocks by beginning with a brief, non-exhaustive review for the purpose of introducing jargon. I...

I will discuss some of the issues about galactic disks which are still not well understood. These issues include the structure and chemical evolution of disks, disk heating, stellar moving groups, thick disks, bar formation, bulges, the...