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astro-ph2005
The Differential Lifetimes of Protostellar Gas and Dust Disks
Taku Takeuchi, C. J. Clarke, D. N. C. Lin
We construct a protostellar disk model that takes into account the combined effect of viscous evolution, photoevaporation and the differential radial motion of dust grains and gas.…
astro-ph2004
Apparent Stellar Wobble by a Planet in a Circumstellar Disk: Limitations on Planet Detection by Astrometry
Taku Takeuchi, T. Velusamy, D. N. C. Lin
Astrometric detection of a stellar wobble on the plane of the sky will provide us a next breakthrough in searching extrasolar planets. The Space Interferometry Mission (SIM) is exp…