Olivier Ilbert
Lab. Astroph. Marseille (LAM) (Marseille, France)
Amphithéâtre Henri Mineur, Institut d'Astrophysique de Paris
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| « Galaxy stellar mass assembly from deep imaging surveys » |
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Olivier Ilbert |
| A clear and comprehensive picture describing the physical processes which regulate the star formation is still missing in galaxy formation scenario. Stellar mass assembly in galaxies is believed to result from several physical processes such as star formation from in-situ or accreted gas, major or minor mergers, as well as supernovae and AGN feedbacks. The relative contribution and operating timescales of these different processes are still a matter of debate.I will present some observational constrains that we established using large and deep imaging surveys, in particular in the COSMOS field. We build galaxy samples with hundred thousands of sources out to z~7. I will show how these data help us to better constrain the quenching processes and the galaxy growth rate over 12 billons years. |
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vendredi 19 février 2016 - 11:00 Amphithéâtre Henri Mineur, Institut d'Astrophysique de Paris |
| Page web du séminaire / Seminar's webpage |