Subir Sarkar
Oxford Astroph., Dept. Physics, Univ. Oxford (Oxford, Grande Bretagne)
Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris
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| « Cosmology beyond the standard model » |
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Subir Sarkar |
| Precision observations of the cosmic microwave backround and of the large-scale clustering of galaxies have supposedly confirmed the indication from the Hubble diagram of Type Ia supernovae that the universe is dominated by some form of dark energy which is causing the expansion rate to accelerate. Although hailed as having established a 'standard model' for cosmology, this raises a profound problem for fundamental physics. I will discuss whether the observations can be equally well explained in alternative inhomogeneous cosmological models that do not require dark energy and will be tested by forthcoming observations. |
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vendredi 6 mars 2009 - 11:00 Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris |
| Page web du séminaire / Seminar's webpage |