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UID:69e09b7268bf4
DTSTAMP:20260416T041858
DTSTART:20131121T113000
SEQUENCE:0
TRANSP:OPAQUE
DTEND:20131121T123000
URL:https://murmitoyen.com/events/vanille/udem/detail/325964
LOCATION:Université de Montréal - Pavillon Roger-Gaudry\, 2900\, chemin d
 e la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:Sizing up the Stars
DESCRIPTION:Conférence de Tabetha Boyajian\, Yale University.Résumé  I 
 will discuss results associated with ongoing surveys to measure diameters 
 and temperatures of main sequence stars with long-baseline optical/infrare
 d interferometry.  Empirical data such as these are used to construct and
  calibrate less direct relationships in order to extend our knowledge to a
  large number of stars.  Analysis includes relations linking color-temper
 ature/radius/luminosity\, surface brightness\, as well as the global physi
 cal properties of temperature-radius-luminosity.  The data are also used 
 to identify weaknesses in stellar atmosphere and evolutionary modeling as 
 well as provide empirical constraints to aid in the development of new mod
 els.  I will highlight recent results from the Planet Hunters citizen sci
 ence project (www.planethunters.org) where volunteers from the general pub
 lic classify light curves and discover transiting exoplanets using archive
  data from the Kepler space telescope.  I will present available opportun
 ities for the astronomical community to collaborate through the Planet Hun
 ters ‘guest scientist’ program.  In such a framework\, guest scientis
 ts make requests for the public to collect particular light curves\, such 
 as signatures of moons or rings\, pulsators\, variable stars\, flare stars
 \, cataclysmic variables\, or microlensing events.Présentée par le Group
 e Astronomie et astrophysique du Département de physique de l'Universit
 é de Montréal. Cette conférence est destinée à des spécialistes dans
  le domaine de l'astrophysique et sera donnée en anglais.
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