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In simplest words, I count atoms and measure the ways that they move.  This is the primary product of absorption-line analysis, a backwards approach to performing astrophysics.  In short, we use bright background sources (quasars, gamma-ray bursts, etc.) to study gas in the foreground that reveals itself in silhouette.  This allow us to study the nature of galaxies and the gas in between them in unprecedented detail.

Much more on my research activities can be found on the web pages devoted to the Inter(galactic+stellar) Medium Program of Studies [IMPS] at UC Santa Cruz.


Professional Links

Professional Activities