School Contents

Introduction to extragalactic surveys                                      I. Pérez

  • Types of extragalactic surveys (wide, deep, imaging, spectroscopy, …)
  • Field selection (extinction, area, cosmic variance, ancillary data, …)
  • Multiwavelength (X-ray, FIR, …), multimode (imaging & spectroscopy) and cross-correlation (searching counterparts…)
  • Applications (wavelength coverage and depth), SED derivation
  • Survey design depending of scientific objectives

Existing and planned surveys                                      I. Pérez 

  • Historical surveys (Sandage, 2dF…)
  • HDF, HUDF, SXDS, SDSS, GOODS, COSMOS, AEGIS, ECDF, GEMS, FIRST, 2MASS…
  • Survey dynamics (schedule, total time elapsed, time invested, exploitation, lifetime,…)
  • Future surveys

High redshift galaxies                                                     A. Fernández Soto 

  • History (highest redshift vs. time)
  • Detection methods
  • Types of high redshift galaxies (BzK, LAE, LBG, SMG, EROS, …)
  • Overview on the relation between the different types. Prospectives
  • Role of extragalactic surveys in studying high redshift galaxies (including: concept of photo-z, advantages and limitations, codes, choosing the proper set of templates, etc as preparation for the workshop on photo-z)

Galaxy formation and evolution                                   C. Conselice

  • Historical theories
  • Current theories
  • Observational evidence. Pros and Cons
  • AGN role, SFRd evolution, metallicity evolution, dust evolution
  • Future prospects from extragalactic surveys

 Large scale structures                                                    V. Martínez

  • Definition, magnitudes, sizes, detection techniques
  • Origin and evolution
  • Cosmological role (e.g. hot vs. cold DM)
  • Role of extragalactic surveys in studying large scale structures
  • The next generation: BAOs

Clusters of galaxies                                                         J. Santos

  • Introduction to galaxy clusters (definition, interest & applications, historical perspective, simulations)
  • The constituents of clusters (dark matter, baryons as galaxies and ICM)
  • Galaxies in clusters (passive evolution, SF, morphology-density relation, colours, CMR, size evolution, the BCG)
  • Complex non gravitational processes (cool cores, feedback & AGN connection, outskirts, metal enrichment)
  • Cluster detection techniques (X-ray, optical/IR, SZ)
  • Role of extragalactic surveys/Missions in studying clusters of galaxies (X-rays: XXL, XDCP; IR: IDCS, MADCOWS, Herschel; Planck survey, SPT, ACT)
  • High redshift clusters and what we can learn from them (recent results, properties of the most distant systems, connection to proto-clusters, implications for cosmology)
  • Proto-cluster detection techniques
  • Future prospects

The Galactic Halo through extragalactic surveys   G. Bono

  • Early formation and evolution of the Halo
  • Star Counts and Halo parametric models
  • Halo density profile and tidal streams
  • Globular clusters and field RR Lyrae as tracers of the Halo
  • Inner and outer Halo: stellar populations and kinematics
  • Halo metallicity gradient
  • Extragalactic surveys to constraint Halo structure

 

The Local Group as a proxy for galaxy evolution         Giuseppina Battaglia

  • Introduction to Local group galaxies
  • Stellar populations in the outskirts of dwarf galaxies
  • SFH, chemical properties and dark matter content of dwarf galaxies
  • Local Group evolution in the context of galaxy evolution

 

Workshop on data mining                                             Luis Sarro

  • Data preparation, preprocessing, the curse of dimensionality, feature selection, dimensionality reduction, VO
  • Supervised classification and regression
  • Unsupervised classification
  • Model evaluation
  • Astrostatistics
  • Worked examples on COSMOS data

 

Workshop on analysis tools                                         D. Cristóbal

  • Extracting sources from raw data
  • Segregating stars from galaxies
  • Performing photometry
  • Morphological classification
  • Cross-correlating surveys
  • Counterpart selection
  • Worked examples

Workshop on photo-z                                                     A. Fernández Soto & A. Molino

  • Configuring and running BPZ
  • Calibrating photo-z
  • Interpreting the results (SED fitting and PDZs)
  • Worked example using COSMOS field with ALHAMBRA data