Matthias Steinmetz
Astroph. Inst. Potsdam (AIP) (Potsdam, Allemagne)
Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris
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| « Galactic Archeology: the formation history of the Galaxy revealed » |
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Matthias Steinmetz |
| How have the Milky Way and other galaxies in the Universe been formed? In a monolithic giant collapse about 10 billion years ago or due to the successive merging of smaller protogalactic clumps as envisioned by the current cosmological "concordance model"? In the latter case, signatures of this formation history should be locked up in the kinematic and chemical properties of stellar populations awaiting discovery. The newest generation of computer simulations are now making quite specific predictions on how to trace these signatures and new observational campaigns from the ground and in space have been started to search for them. Indeed, the first couple of examples have been clearly identified. Together observations and simulations will soon enable us to reconstruct the formation history of the Milky Way and, possibly, of other galaxies in the Local Group. |
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vendredi 16 janvier 2004 - 11:00 Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris |
| Page web du séminaire / Seminar's webpage |