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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20150617T103000
DTEND;TZID=Atlantic/Canary:20150617T113000
UID:iactalks-794
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/794
CREATED:2015-06-17T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Understanding the obscuring torus and the nuclear star formation of
  AGN using GTC/CanariCam observations 
DESCRIPTION:Understanding the obscuring torus and the nuclear star formatio
 n of AGN using GTC/CanariCam observations \nDr. Almudena Alonso\n\nThe fue
 ling of black holes occurring in active galactic nuclei (AGN) is fundament
 al to the evolution of galaxies. AGN themselves are largely explained in t
 he context of a unified theory, by which a geometrically and optically thi
 ck torus of gas and dust obscures the AGN central engine. The torus interc
 epts a substantial amount of flux from the central engine and and reradiat
 es it in the infrared. In this talk I will present our CanariCam ESO/GTC l
 arge programme which is aimed at understanding the properties of the obscu
 ring material around AGN, including the torus, and the role of nuclear (&l
 t; 100 pc) starbursts in feeding  and/or obscuring AGNs. The CanariCam nea
 rly diffraction limited observations (median 0.3arcsecond), which were fin
 ished recently, include imaging and spectroscopy of 45 local AGN, and pola
 rimetry for selected AGN. I will first present an overview of the spectros
 copic properties of the sample. Then I will discuss results on the torus p
 roperties of different types of AGN from the modelling of the unresolved i
 nfrared emission with the CLUMPY torus models. Finally I will also show th
 at we can use the 11.3micron PAH feature to trace star formation activity 
 in the nuclear regions of AGN.
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