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<TITLE>Spitzer talk on Epsilon Eridani</TITLE>
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<P ALIGN=CENTER><B><FONT FACE="Arial">FRIDAY, NOVEMBER 18</FONT></B></P>
<P><FONT FACE="Arial">12:30 pm: </FONT><A HREF="http://cfa-www.harvard.edu/%7Eehumphre/RGtalks/"><U><FONT COLOR="#0000FF" FACE="Arial">Radio and Geoastronomy Division Lunch Talk</FONT></U></A><FONT FACE="Arial">. "A Spitzer View of the Epsilon Eridani Planetary System," Dr. Massimo Marengo, CfA. Room M-340, 160 Concord Avenue. </FONT></P>
<P><B><I><FONT FACE="Arial">Abstract</FONT></I></B><I></I><FONT FACE="Arial">: Epsilon Eridani is a younger, dustier solar system analogous. With an age of 850 Myr and a spectral type of K2V, it is a young main sequence star with a mass just below that of the Sun. It harbors a dusty "debris disk" found by IRAS and first imaged at sub-mm wavelength, roughly the size of our own Kuiper belt. It is also home of at least one Jupiter-size planet, found with radial velocity techniques. These characteristics, and the proximity of epsilon Eridani to the Sun make it the ideal subject to study what could have been the early history of our own solar system. The Spitzer Space telescope, with its high sensibility and stability, offers a unique perspective to complete this picture, at wavelengths where the dust emissions from the disk are stronger, and it is easier to search for direct emission from sub-stellar companions. </FONT></P>
<P><A HREF="http://www.cfa.harvard.edu/cfa/calendar/latest.html"><U><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">http://www.cfa.harvard.edu/cfa/calendar/latest.html</FONT></U></A>
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