BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//ZContent.net//ZapCalLib 1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20110621T000000
DTEND;TZID=Atlantic/Canary:20110621T010000
UID:iactalks-289
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/289
CREATED:2011-06-21T00:00:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:New insight into the T-type planetary mass population in the Sigma 
 Orionis cluster
DESCRIPTION:New insight into the T-type planetary mass population in the Si
 gma Orionis cluster\nMiss Karla Yulién Peña Ramírez\n\nThe proper chara
 cterization of the least massive population of the young  Sigma Orionis st
 ar cluster is required to understand the form of the  cluster mass functio
 n and its impact on our comprehension of the  substellar formation process
 es. SOri70 (T5.5±1) and SOri73, two T-type  cluster member candidat
 es, would have likely masses between 3 and 7 MJup  if their age is 3 Myr. 
 SOri73 awaits confirmation of its methane  atmosphere. Here I present the 
 results of a search of T-type objects in  an area of ~120 arcmin^2 in the 
 Sigma Orionis cluster, the confirmation  of the presence of methane absorp
 tion in SOri73 and the study of SOri70  and 73 cluster membership via phot
 ometric colors and accurate proper  motion analysis. This results would ha
 ve a dramatic impact in the  cluster mass function, in one of the scenario
 s explored, they suggest a  decrease in cluster members with planetary mas
 ses in the interval 3.5-6  Mjup.
END:VEVENT
END:VCALENDAR