mountain profile Institute for Astronomy University of Hawaii

Geoff Mathews

Institute For Astronomy
University of Hawaii

Ph.D. Astronomy 2012
University of Hawai`i at Mãnoa

M.S. Astronomy 2009
University of Hawai`i at Mãnoa

B.S. Physics, with Honors 2000
University of Texas, Austin

I am an Astronomy Instructor in the University of Hawaii's Department of Physics and Astronomy. In the current semester, Fall 2013, I am teaching ASTR 110, Introduction to Astronomy.

I completed my Ph.D. in Astronomy at the University of Hawaii's Institute for Astronomy, where I worked with Jonathan Williams and the GASPS team on characterizing the gas and dust content of a group of young stars. These observations, conducted using ground based (sub)millimeter observatories (JCMT, IRAM 30m, and SMA) and the Herschel Space Observatory, allow us to place constraints on the timescale of giant planet formation. In addition, I have developed model fitting code to simultaneously use broad band photometry and (sub)millimeter visibilities to semi-automatically determine the geometry of dusty circumstellar disks.

After the completion of my Ph.D., I moved to Leiden, the Netherlands, where I worked with the research group of Ewine van Dischoeck carrying out further sub-millimeter imaging of circumstellar disks. In my work, I used data from the new ALMA observatory to demonstrate the utility of DCO+ as a tracer of the CO freeze-out region of disks, and make a call for the identification of other localized tracers in order to carry out disk "tomography".

(Last updated Aug 2013)