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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20160223T123000
DTEND;TZID=Atlantic/Canary:20160223T133000
UID:iactalks-868
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/868
CREATED:2016-02-23T12:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Variability surveys from today to future extremely large telescopes
DESCRIPTION:Variability surveys from today to future extremely large telesc
 opes\nDr. Giuliana Fiorentino\n\nI will make an overview of the classical 
 pulsating variable stars (i.e. SX Phoenicis, RR Lyrae, Anomalous Cepheids,
  Classical Cepheids) in our Local Group and beyond. I will focus on the ev
 olution and pulsation theory that drives our interpretation of their obser
 ved properties in terms of stellar evolutionary tracers and powerful dista
 nce indicators. The analysis of low mass (and thus ancient) variable stars
  can provide sound constraints in our understanding of how galaxies form a
 nd evolve. Particular attention will be devoted to the idea of whether the
  current dwarf spheroidal satellites (dSphs) of the MW are surviving repre
 sentatives of the Halo protogalactic fragments (Fiorentino et al. 2015). F
 urthermore, I will discuss the use of classical Cepheids to calibrate SNIa
  host galaxies with the aim of accurately measure the local Hubble constan
 t, Ho.I will discuss in detail the possible exploitation of the public var
 iable star catalogues coming from the ESA Gaia mission and the next quantu
 m leap that will be possible in the near future thanks to full sky project
  with extremely deep limiting magnitude such as the Large Synoptic Survey 
 Telescope. I will conclude describing the importance of resolved stellar p
 opulation studies in preparing the era for extremely large telescopes.
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