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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20101220T000000
DTEND;TZID=Atlantic/Canary:20101220T010000
UID:iactalks-231
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/231
CREATED:2010-12-20T00:00:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:On the extreme properties of massive galaxies at high redshifts 
DESCRIPTION:On the extreme properties of massive galaxies at high redshifts
  \nMr. Fernando Buitrago Alonso\n\nMassive (&#8805 1011 M⊙) galaxies
  at high redshift (z &#8805 1.5) remain mysterious objects. Their extremel
 y small sizes (effective radii of 1-2 kpc) make them as dense as modern gl
 obular clusters. It is thought that a highly dissipational merger is neede
 d to create such compact type of galaxies. We will discuss this issue, alo
 ng with state-of-the-art morphological and kinematic observations of these
  objects. In the present day Universe massive galaxies show large sizes, a
 nd harbor old and metal-rich stellar populations. In order to explore thei
 r development, we present near-IR IFU observations with SINFONI@VLT for te
 n massive galaxies at z=1.4 solely selected by their high stellar mass whi
 ch allow us to retrieve velocity dispersions, kinematic maps and dynamical
  masses. We joined this with data and works coming from the GOODS NICMOS S
 urvey, the largest sample of massive galaxies (80 objects) with high-resol
 ution imaging at high redshift (1.7 < z < 3) acquired to date. As a result
 , we show how their morphology changes possibly through elusive minor merg
 ing.
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