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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20110617T000000
DTEND;TZID=Atlantic/Canary:20110617T010000
UID:iactalks-275
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/275
CREATED:2011-06-17T00:00:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:The non-homology - star-formation connection: hints for the solutio
 n of the FP problem
DESCRIPTION:The non-homology - star-formation connection: hints for the sol
 ution of the FP problem\nDr. Mauro D'Onofrio\n\nWe present the K band FP o
 f the ETGs members of the clusters observed by the WINGS survey. The data 
 confirm a different tilt of the FP with respect to the V solution and the 
 presence of a substantial tilt in the K band. This led us to further inves
 tigate the hypothesis that ETG non-homology greatly contribute to the tilt
  of the FP.\nThe WINGS data show that there are now several evidence of bo
 th structural and dynamical non-homology for the class of ETGs. Among thes
 e we will discuss in detail the tight relation between the mass of the ETG
 s, their stellar mass-to-light ratio M/L, and the Sersic index n describin
 g the shape of their light profiles. We guess through a series of mock sim
 ulations that this relation acts as a fine-tuning that keeps small the sca
 tter around the FP. We therefore conclude that ETG non-homology is closely
  connected either with the problem of the tilt and with the small scatter 
 around the FP.
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