Astronomy Research

Some of the most exciting issues in astrophysics today can be summed up in three simple questions. How did galaxies form and evolve to the present day? How do larger-scale structures form and evolve and how do they affect the galaxies within them? What can we learn about dark matter and dark energy by observing these galaxies and larger structures?

As a graduate student, I studied galaxy evolution with the Digital Palomar Observatory Sky Survey (DPOSS) and became deeply involved in all aspects of the Deep Lens Survey (DLS), a 20 deg2, ultra-deep multi-band (BVRz) optical survey. I participated in several of the survey’s observational runs, and was instrumental in figuring out the photometry and photometric redshifts for hundreds of millions of galaxies. I also helped measure galaxy shapes which were then used for optical as well as weak lensing cluster detection.

This rich data set is ready to be used in a multitude of projects. If you are a motivated physics student that want to learn about astronomy and what it means to be an astronomer, please contact me.     

Deep Lens Survey
The image above shows about 2% of the total area surveyed by the Deep Lens Survey. To achieve the depth shown in this image, we observed each area of the sky for a total of 15 hours with the 4-meter telescope, Blanco, in Chile. The zoom in region shows a cluster at z=0.68 discovered from the weak lensing data and photometric redshifts alone. A candidate arc is seen below and to the right of the central galaxy.
Here is my Google Scholar profile with a list of my publications.