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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20111220T000000
DTEND;TZID=Atlantic/Canary:20111220T010000
UID:iactalks-321
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/321
CREATED:2011-12-20T00:00:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Progenitors of recent core-collapse supernovae
DESCRIPTION:Progenitors of recent core-collapse supernovae\nDr. Nancy Elía
 s de la Rosa\n\nSupernovae are at the heart of some of the most important 
 problems of modern astronomy. To fully understand their importance and to 
 enable their use as probes of stellar evolution throughout cosmic time, it
  is absolutely essential to determine their stellar origins, i.e., their p
 rogenitors or progenitor systems. Even with over 5600 known SNe, we have o
 nly direct information about the progenitor star for a handful of explosio
 ns. Based on the statistics of 20 SNe II-P for which progenitors have been
  isolated or upper mass limits established, it has been derived a more lim
 ited range of 8-17 solar masses for these stars, and it appears that all o
 f these progenitors exploded in the RSG phase, as we would theoretically e
 xpect. However there has been no detection of a higher mass stars in the r
 ange 20-40 solar masses, which should be the most luminous and brightest s
 tars in these galaxies. Therefore, I will present here the results of our 
 group in the analysis of Hubble Space Telescope (HST) and deep ground-base
 d images, isolating the massive progenitor stars of several recent core-co
 llapse supernovae.
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