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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20120308T000000
DTEND;TZID=Atlantic/Canary:20120308T010000
UID:iactalks-372
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/372
CREATED:2012-03-08T00:00:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Constraining strong lensing models with dynamics 
DESCRIPTION:Constraining strong lensing models with dynamics \nDr. Tomás V
 erdugo\n\nGalaxy groups have an important role in the hierarchical assembl
 y of structures in the Universe. Since galaxy groups are much more massive
  than galaxy-scale halos and are concentrated enough, they can act as lens
 es. The study of dark matter profiles can be very successfully using group
 -scale lenses, being that galaxy groups are quite abundant compared to gal
 axy clusters, and are easy to model. However, these have the disadvantage 
 of the lack of constraints. In this talk, I will show how is possible to c
 onstrain the scale radius of the NFW profile using the velocity dispersion
  of the galaxy group. In particular I will present the results obtained wi
 th SL2SJ 02140-0535, a group which belongs to the Strong Lensing Legacy Su
 rvey - ARCS (SARCS) sample compiled from the final T0006 data release of t
 he Canada-France-Hawaii Telescope Legacy Survey (CFHTLS).
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