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2004-2005
OI Colloquium
Dr. Josh Eisner
 University of California at Berkeley, Department of Astronomy
Title Building Blocks of Planets around Young Stars
Date07 / 04 / 2008
Time 2:30pm (Coffee served at 2:15pm)
PlaceMDCL-1110
Linkhttp://astro.berkeley.edu/tac/
Abstract Planetary systems form in disks of dust and gas around young stars, and
observations of these disks can shed light on the physical processes by which
planets form. I will describe millimeter wavelength
interferometric observations that constrain the mass content of hundreds of
protoplanetary disks. I will show that most disks are probably less massive
than the nebula from which our solar system formed, and argue that Jupiter-mass
planets are rare if they form by the core accretion or disk fragmentation
mechanisms currently proposed. I will also briefly discuss recent near-IR
observations of the innermost regions of protoplanetary disks. While
millimeter wavelength observations probe the properties of cool outer disks
where giant planets likely form, near-IR interferometry can probe
disk terrestrial regions where giant planet migration and rocky planet
formation occur.

   Back to 2008 talk listing

Origins Institute at McMaster University, 2004-2009
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