XIème Ecole de Cosmologie
17 - 22 septembre 2012 IESC, Cargèse
Lentilles gravitationnelles
leur impact dans l’étude des galaxie et la cosmologie

Quasar Absorbers and Lensing

Céline PEROUX
Laboratoire Astrophysique de Marseille (LAM)

Chapitres

  1. Quasar Absorbers techniques
  2. Recent Results
  3. Prospect for the future

Résumé

The circumgalactic medium of typical galaxies represents a new frontier in the pursuit of a complete theory of galaxy formation. Understanding the nature and evolution of this material over cosmic time is a crucial element of galaxy formation theory, as it is the main source of fuel for star formation and is the material that is most sensitive to the ill-understood feedback processes that regulate galaxy growth. Circumgalactic baryons are only now coming within observational grasp thanks in particular to the study of absorbers found in background quasars. Astronomers will therefore soon have the opportunity to study the material that is infalling onto, or outflowing from typical galaxies. We propose here to review the technique, recent results and future propects of the field.

Bibliographie

    • Prochaska, J. X., 2009 and..book..419
    • Bouche, N. 2012 MNRAS.419....2
    • Steidel, Charles C. 2010 ApJ...717..289
    • Frank, S. 2012 MNRAS.420.1731

Programme