BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CRAL - ECPv6.15.20//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:CRAL
X-ORIGINAL-URL:https://cral.osu-lyon.fr
X-WR-CALDESC:Évènements pour CRAL
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Paris
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20230326T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20231029T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20241027T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20241220T110000
DTEND;TZID=Europe/Paris:20241220T120000
DTSTAMP:20260510T075318
CREATED:20241119T102559Z
LAST-MODIFIED:20241218T110443Z
UID:7569-1734692400-1734696000@cral.osu-lyon.fr
SUMMARY:CRAL@Obs seminar by Antoine Rocher (EPFL)
DESCRIPTION:Galaxy-halo connection in cosmology with wide spectroscopic surveys —\n \nSince the early 2000s\, wide spectroscopic surveys\, in particular multi-fibre experiments\, have provided significant insights into the three-dimensional distribution of galaxies and quasars in the Universe\, by constraining cosmological parameters through precise measurements of the baryon acoustic oscillation (BAO) scale and the non-linear growth rate of structure from redshift space distortions. Current and upcoming stage IV spectroscopic surveys\, such as the Dark Energy Spectroscopic Instrument (DESI) or the 4-metre Multi-Object Spectrograph Telescope (4MOST) aims to reach sub-percent precision on cosmological parameters over a broad redshift range of 0.1 < z < 3.5.\nIn this talk\, I will give an overview of the DESI survey and its scientific goals. In particular\, I will focus on the galaxy-halo connection\, i.e. how galaxies are connected to the underlying matter field. I will present results obtained using the early data release of DESI to constrain the connection between DESI galaxies (luminous red galaxies (LRGs) and Emission Line Galaxies (ELGs)) using the halo occupation distribution (HOD) framework\, an empirical approach to link galaxies and dark matter halos in N-body simulations.
URL:https://cral.osu-lyon.fr/event/cralobs-seminar-by-antoine-rocher-epfl/
LOCATION:Observatoire
ATTACH;FMTTYPE=image/png:https://cral.osu-lyon.fr/wp-content/uploads/2023/11/image_defaut.png
END:VEVENT
END:VCALENDAR