Room 1324, Astronomy-Mathematics Building, AS/NTU. No.1, Sec. 4, Roosevelt Rd,
I am a postdoctoral fellow working on the modeling of circumstellar dust around evolved stars. I am also interested in the evolvution low- and intermediate-mass stars, in particular through the asymptotic giant branch (AGB) and red supergiant (RSG) phases, which are characterised by large amounts of dust production at high rates in comparatively short timescales. The phenomenon of AGB mass loss has very important consequences for galactic chemical evolution, and the metal-rich material recycled from the cores of these stars out into the interstellar medium provides fodder for the next generation of young stars.
My colleagues and I have developed GRAMS, a grid of radiative transfer models for the dust shells around AGB and RSG stars that allows for the quick and easy fitting of large sets of photometric data. Not only is this technique able to successfully separate oxygen-rich and carbon-rich chemistries, but it also provides a very precise estimate for the total dust production rate from the galaxy-wide sample of evolved star candidates. The relevant publications are Sargent et al. (2011) and Srinivasan et al. (2011). The grid is available for download here. It has also been incorporated into the Spanish Virtual Observatory SED Analyzer (VOSA), which can be accessed here.
As of November 2012, I am working at ASIAA with Dr. Ciska Kemper on various projects related to the life cycle of dust in galaxies.
Previously, I was a postdoctoral fellow with the Paris contingent of the KINGFISH (Key Insights on Nearby Galaxies: a Far-Infrared Survey with Herschel; PI: Rob Kennicutt) team.
As part of my Ph.D. at The Johns Hopkins University, I worked with Dr. Margaret Meixner on the mass-loss return from evolved stars in the Large Magellanic Cloud (LMC) using data from the SAGE (Surveying the Agents of Galaxy Evolution; PI: Meixner) survey.
Click here if you would like to view my curriculum vitae, here for a list of my most significant publications/talks.