Cours de l'IAP / Lectures of the IAP |
| « Gravitational lensing, from planets to clusters of galaxies 4 » |
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Christophe Alard |
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Lecture 4 : First cosmological applications: quasars
4.1) Specific examples of quasars lensing by galaxies 4.2) Basic modeling of quasar lensing by galaxies 4.2.1) The mass-sheet degeneracy 4.2.2) Simple models 4.2.3) Perturbations by dark matter substructures 4.3) Time delays 4.3.1) Basic physics of time delays 4.3.2) Specific examples 4.3.3) Constraining cosmological parameters using time delays 4.4) Perturbation of the lens by local stars: microlensing 4.4.1) Basic physics of the perturbation 4.4.2) Reconstruction of the local caustics maps 4.4.3) Resolving the fine structure of the quasar source Full program at http://www2.iap.fr/users/alard/cours_lensing.pdf |
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lundi 31 janvier 2022 - 15:00 Amphithéâtre Henri Mineur, Institut d'Astrophysique |
| Page web des cours / Lectures' webpage |