<p>MONDAY, JUNE 16</p><p><br></p><p><b>1:00 pm:</b> <a href="http://www.cfa.harvard.edu/ssp/events.html">Solar, Stellar, and Planetary Sciences
Division Seminar</a>. "The Time History of Terrestrial and Icy Planet Formation
As Reconstructed from Spitzer," Thayne Currie, CfA. Phillips Auditorium.</p>
<p><b>Abstract:</b> Studying circumstellar disk evolution and planet
formation around other stars provides a context for the formation our
Solar System as well as the rapidly expanding sample of known
extrasolar planets. In this talk, I discuss recent results on disk
evolution and planet formation from the Spitzer Space Telescope,
focusing on observations of h and chi Persei, IC 348, and other 3 Myr
to 25 Myr old open clusters. These results provide the strongest
constraints yet on a) the primordial to debris disk transition, b) the
lifetime of nebular gas required to form Jovian planets, c) the time
history of terrestrial planet formation, and d) planet formation in ice
giant/Kuiper belt regions. I discuss challenges that these results pose
for theoretical models of planet formation, implications these results
have for the timescale required for planet building, and their
potential to explain observed trends in in exoplanetary systems,
particularly for systems with hot Jupiters.</p><p><br></p><a href="http://www.cfa.harvard.edu/events/calendar/latest.html">http://www.cfa.harvard.edu/events/calendar/latest.html</a><br clear="all"><br>-- <br>Sarah T. Stewart-Mukhopadhyay<br>
Asst. Professor of Planetary Science<br>Dept. of Earth & Planetary Sciences, Harvard University<br>Office 617.496.6462 Lab 617.496.5782 Fax 617.384.8249<br><a href="mailto:sstewart@eps.harvard.edu">sstewart@eps.harvard.edu</a><br>
<a href="http://www.fas.harvard.edu/~planets/sstewart/">http://www.fas.harvard.edu/~planets/sstewart/</a><br><br>Assistant:Marcie Steeves, <a href="mailto:steeves@eps.harvard.edu">steeves@eps.harvard.edu</a>, 617-495-2350