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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20120510T000000
DTEND;TZID=Atlantic/Canary:20120510T010000
UID:iactalks-387
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/387
CREATED:2012-05-10T00:00:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:The nuclear infrared emission of low-luminosity active galactic nuc
 lei 
DESCRIPTION:The nuclear infrared emission of low-luminosity active galactic
  nuclei \nDr. Rachel Mason\n\nLow-luminosity AGN (LLAGN; LINERs and low-lu
 minosity Seyferts) are present in numerous nearby galaxies and are often s
 uggested to be the "missing link" between bright AGN and "normal", quiesce
 nt systems. Their accretion physics appear to differ from those of higher-
 luminosity AGN, and their place in the AGN unified scheme is not yet clear
 . Mid-IR observations promise new constraints on the accretion mechanisms 
 and obscuring medium in LLAGN. However, their mid-IR emission remains almo
 st completely unexplored at the high angular resolution needed to separate
  the weak nucleus from the host galaxy. I will show the results of an expl
 oratory imaging study of ~20 LLAGN using Michelle and T-ReCS on the Gemini
  telescopes. Combined with Spitzer spectroscopy and high-resolution multi-
 wavelength information, the data establish, for the first time, the genera
 l nuclear IR properties of these objects. There are some hints that the ob
 scuring torus disappears at low AGN luminosities, and we are also able to 
 provide "dust-free" candidates for detailed study of the disk and jets.
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