I'm interested in planets orbiting K dwarfs, and use of infrared spectroscopy to study gas giant planets orbiting active and young stars.


ET Project: Exoplanet Tracker, formerly housed at the Kitt Peak National Observatory 2.1m telescope. This instrument discovered ET-1 (HD102195b), the first extrasolar planet discovered using the DFDI technique. Currently used primarily as a follow-up instrument, it is also open for the public to apply for time at the KPNO 2.1m. More info can be found (here). I worked on the planning and taking of observations, performed the data reduction, maintained a data archive of the results, coordinated observers (both UF and external groups using our instrument), and made target schedules and (often) performing the observations. This instrument was later retired and replaced with EXPERT (see below).

MARVELS: A multi-object, DFDI instrument housed at the Sloan Digital Sky Survey 2.5m telescope. Designed to conduct a wide-field survey for extrasolar planets between V=8-12 magnitude using the SDSS telescope from 2008-2012. Such a homogeneous data set allows for robust constraints on models of planet formation and dynamical evolution. In addition, a variety of ancillary science projects involving stellar astrophysics, multiple-star systems, substellar companions and galactic dynamics can be performed. More info can be found at the official SDSS-3 website (here). My primary work in the survey was performing the target selection, data archiving, and RV analysis.

EXPERT: EXPERT is an upgraded version of the ET instrument (see above) that combined the ET instrument setup with a "mini-Echelle" to provide a resoltuion of ~27,000 to achieve high RV precision. A twin instrument was delivered and installed in Lijiang, China. In addition to DFDI, a second fiber allows for the light to bypass the interferometer, allowing for standard Echelle spectra to be obtained between 400-1000 nm. This is known as the Direct Echelle Mode (DEM).