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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20141002T103000
DTEND;TZID=Atlantic/Canary:20141002T113000
UID:iactalks-672
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/672
CREATED:2014-10-02T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Fingerprints of our Neighbors: A Spectral Library for Characterizin
 g the Coldest Stars, Brown Dwarfs and Extrasolar Planets.
DESCRIPTION:Fingerprints of our Neighbors: A Spectral Library for Character
 izing the Coldest Stars, Brown Dwarfs and Extrasolar Planets.\nDr. Adam Bu
 rgasser\n\nOver the past two decades, advances in infrared instrumentation
  have allowed us to identify a vast and previously unseen population of lo
 w-temperature stars, brown dwarfs and free-floating extrasolar planets, co
 llectively called ultracool dwarfs. These sources, with surface temperatur
 es reaching below 0ºC, encompass three new spectral classes and inclu
 de some of the nearest systems to the Sun. Research in this field is now c
 oncentrating on the physical characterization of the ultracool dwarf popul
 ation and application to Galactic studies. In this talk, I will summarize 
 the recent observational advances in ultracool dwarf research, including t
 he recent discovery of the Y dwarf spectral class. I will then describe ou
 r ongoing IRTF/SpeX survey, which has measured the low-resolution, near-in
 frared spectra of over 1500 late M, L and T dwarfs and uncovered new subpo
 pulations of young (5-30 Myr) brown dwarf, metal-poor halo brown dwarfs an
 d short-period spectral binaries.
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