Séminaire / Seminar GReCO |
| « Measuring the matter-radiation equality scale » |
|
Benedict BAHR-KALUS |
| The epoch of matter-radiation equality, a fascinating era in the evolution of the Universe, leaves a unique imprint on the matter power spectrum, manifesting as a characteristic turnover. This intriguing feature can serve as an alternative standard ruler, the longest in the cosmos, that has the potential to shed light on the Hubble tension. I will present our latest findings derived from the quasar sample of the extended Baryon Oscillation Spectroscopic Survey (eBOSS). Additionally, I will outline our ongoing endeavours to accurately measure this turnover using the cutting-edge Dark Energy Spectroscopic Instrument (DESI) and Euclid. |
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lundi 5 février 2024 - 15:00 Salle des séminaires Évry Schatzman Institut d'Astrophysique de Paris |
| Pages web du séminaire / Seminar's webpage |