David Sand’s Website


Starting in January 2013, I will be an assistant professor at Texas Tech University, as part of their recent expansion of the astrophysics group.  I am hiring a postdoc immediately, please check out the job ad here.

I am an observational and experimental astrophysicist, doing a postdoctoral fellowship at the University of California, Santa Barbara and the affiliated Las Cumbres Observatory Global Telescope Network.  As part of the first two years of this position, I worked at the Harvard-Smithsonian Center for Astrophysics.  Before that, I was a Chandra Fellow at the University of Arizona.  I received my PhD at the California Institute of Technology, under the supervision of Richard Ellis.

My astrophysics research is driven by the scientific questions at hand, rather than a specific technique.  Some topics include:

Instrument scientist for FLOYDS -- a new spectrograph for the robotic Faulkes Telescope North

The structure and star formation history of the faintest Milky Way Satellites

The Multi-Epoch Nearby Cluster Survey -- A supernova and weak lensing survey in z~0.1 galaxy clusters.

A new survey of two nearby galaxies -- NGC 5128 and NGC 253 -- to search for associated dwarf galaxies and stellar streams.

The dark matter density profile in galaxy clusters.


Brief Academic Bio and Research Topics

The main focus of my research is at the intersection of baryonic and dark-sector astrophysics.  What is a galaxy?  How does the presence of dark matter and baryons effect the central structure and satellite galaxies we observe within a dark matter halo? Can a deeper understanding of Type Ia supernova lead to tighter dark energy constraints?  How does the Universe become chemically enriched?

My ADS publication list is here

A pdf version of my CV is here

The extremely elongated Milky Way satellite, Hercules (Sand et al. 2009)

A hostless, intracluster supernova discovered in the Multi-Epoch Nearby Cluster Survey (Sand et al. 2011)