Francisco Javier Castander Serentill Institut d’Estudis Espacials de Catalunya (IEEC) Institut de Ciències de l’Espai (ICE/CSIC) Exploiting the Mid- Exploiting the Mid- InfraRed to InfraRed to understand galaxies understand galaxies Extragalactic Extragalactic research from Dome C research from Dome C
Exploiting the Mid-InfraRed to understand galaxies Extragalactic research from Dome C. Francisco Javier Castander Serentill. Institut d’Estudis Espacials de Catalunya (IEEC) Institut de Ci ències de l’Espai (ICE /CSIC) Barcelona. - PowerPoint PPT Presentation
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Francisco Javier Castander Serentill
Institut d’Estudis Espacials de Catalunya (IEEC)
Institut de Ciències de l’Espai (ICE/CSIC)
Barcelona
Exploiting the Mid-InfraRed Exploiting the Mid-InfraRed to understand galaxiesto understand galaxies
Extragalactic research from Extragalactic research from Dome CDome C
• How many photons: Flux: colours, SED, luminosity
• How photons are distributed spatially: Morphology: size, shape
• How photons are distributed in λ: SED: redshift, stellar population & gas: Z, t, SFR, IMF
• How photons are distributed in λ: kinematics
What can we measure about What can we measure about galaxies?galaxies?
Understanding galaxies
Properties distribution functions: mass, luminosity, morphology, kinematics, colour, metallicity
Correlations
Environment
Evolution
Surveys to unveil properties of galaxies
• Galaxy properties are diverse, complex and depend on many parameters => Need large number to characterize variance & evolution => Need large volumes at different z
• Large Surveys required
Surveys to characterize Large Scale Structure
• Matter difficult to trace. Galaxies (and clusters) best tracers but biased
• Typical distances few Mpc & cosmic variance => Need large volumes
• Large Surveys required
Surveys to characterize Cosmology
• Dark Matter and Dark Energy
• Dependency: expansion rate H(z) & growth rate of perturbations D(z) => Need large volumes