Here are a couple of nifty projects led by other people that I have enjoyed contributing to recently


Collaborative Work

Characterizing Disk Structure at High Angular Resolution

This work, led by Sean Andrews, uses the Submillimeter Array in its most extended configuration to obtain very high angular resolution observations of a sample of young disks in the nearby Ophiuchus star forming region.  The images alone reveal a stunning diversity of disk shapes and sizes, but combining the resolved millimeter-wavelength observations with broad-band spectral information and radiative transfer modeling provides detailed information about the disk temperature and density structure. Preliminary results are published in ApJ Letters, and there are now two full articles on this exciting work.

First Science Results from the eSMA

The eSMA combines the Submillimeter Array with the other two submillimeter telescopes on Mauna Kea: the James Clerk Maxwell Telescope and the Caltech Submillimeter Observatory.  The three telescopes combined have nearly double the collecting area of the SMA, as well as even finer resolution.  I had the opportunity to work on some early data from the eSMA, and greatly enjoyed dealing with its quirks.  The eSMA is described in the Proceedings of the SPIE, and the first science results have been published in ApJ letters: there’s a nifty observation of a  lensed quasar behind the spiral arm of a distant galaxy, led by Sandrine Bottinelli, as well as a study of the innermost envelope of the evolved star IRC+10216, led by Hiroko Shinnaga.

Back to Research

Debris Disks

Transition Disks

Accretion signatures


(Collaborative work)