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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20080924T000000
DTEND;TZID=Atlantic/Canary:20080924T010000
UID:iactalks-188
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/188
CREATED:2008-09-24T00:00:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Spitzer Space Telescope studies of primitive solar system objects
DESCRIPTION:Spitzer Space Telescope studies of primitive solar system objec
 ts\nDr. Joshua Emery\n\nThe Infrared Spectrograph (IRS) on Spitzer has obs
 erved more than 120 asteroids, several Centaurs and Kuiper Belt objects (K
 BOs), and satellites of the giant planets.  The asteroid sample includes o
 bjects from near-Earth space, through the Main Belt, and into the Jupiter 
 Trojan swarms.  Asteroids from all taxonomic classes have been observed, a
 s have several binary and multiple component systems.  The diameters of th
 ese targets range from a few hundred meters to a few hundred kilometers.  
 On the whole, IRS has provided a broad sample of emissivity spectra of sma
 ll Solar System bodies.  The largest emissivity features detected are at t
 he 10% level and are confined to the more primitive asteroid classes.  Sig
 nificant spectral variation is apparent among the IRS asteroid sample.  So
 me of the dust observed in the close environment of other stars likely com
 es from asteroid collisions, so asteroids in the Solar System are proper m
 ineralogical analogs.  As capabilities continue to improve, direct observa
 tions of small body populations in other systems and inter-comparisons bet
 ween systems will foster significant insights into the formation and evolu
 tion of planetary systems.  The Solar System occupies a unique role by its
  accessibility and the detail to which it can be studied. While the IRS da
 ta are a good start, there is much to be learned from a larger set of mid-
 infrared spectra (e.g., from JWST and SOFIA).  In this talk, I will presen
 t an overview of the IRS observations of small Solar System bodies, with a
  few representative objects highlighted for detailed discussion.\n\n
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