Home           Research           CV           Contact           Fun

How do planets form and what do young planets look like? You'll see below that I have worked to bring the power of high-spatial resolution spectroscopy to bear on these questions. I have also worked on projects to investigate the super-massive black hole at the center of our galaxy. I am currently working with the Large Binocular Telescope Interferometer team, reducing data from the LEECH survey ---an L-band search for mature planets around nearby stars. I also lead the ALES L-band IFU implentation and commissoining as project scientist. ALES will facilitate high-contrast spectroscopy of planets near the peak of their SEDs.
ADS listing of my work

Imaging Interferometry with LBTI
I'm leading the effort to push LBTI phase-referenced imaging interferometry to fainter magnitudes.

Co-phased NRM with LBTI
Co-phased NRM will yield science results on spatial scales even smaller than the binocular diffraction limit!

High-contrast thermal-IR spectroscopy with ALES
I helped build and I led the laboratory and on-sky tests of the Arizona Lenslets for Exoplanet Spectroscopy (ALES) thermal-IR (3-5 micron) integral field spectrograph.

Direct Imaging with LBTI
I led the LEECH direct imaging survey with LBTI. The survey was conducted at 3.8 microns and delivered the best sensitivity to cold-start gas-giant planets on solar system scales. The main result of the paper is that cold-start planets could be quite common around FGK stars.
ADS link

High-contrast L-band spectroscopy of substellar companions
I worked with the MagAO team to establish the low spectral resolution L-band spectroscopy mode of the Clio2 instrument. This mode provides R~50 to 300 spectra at high-spatial resolution.
ADS link

Variable emission from Sgr A* at sub millimeter wavelengths with Herschel SPIRE
I corrected slow pointing drifts of the Herschel Space Observatory to obtain a 25.5 hour light curve of Sgr A* at submillimeter wavelengths, providing the first constraint on the SED of Sgr A* at 0.25 mm.
ADS link

VHS 1256 -1257 b
I discovered that the central source in the VHS 1256-1257 system is an equal magnitude binary. This may indicate a further distance to the system and could mean that the planetary mass companion is actually more luminous and more massive.
ADS link

Variable accretion rates in the UY Aur pre-main sequence binary system
I worked with the instrument team to commission the high-resolution echelle spectroscopy mode of ARIES behind the MMT adaptive optics system. We reported results on the UY Aur binary system which includes two classical T Tauri stars in the late stages of their formation.
ADS link

Interferometric observations of stars orbiting the black hole at the galactic center.
I simulated the performance of the Keck Interferometer ASTRA instrument and the VLT interferometer GRAVITY instrument in making observations of stars orbiting the galactic center. ADS link

Updated 2016 June 20