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X-WR-CALDESC:Évènements pour CRAL
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DTSTART;TZID=Europe/Paris:20250404T110000
DTEND;TZID=Europe/Paris:20250404T120000
DTSTAMP:20260510T102755
CREATED:20241119T114052Z
LAST-MODIFIED:20241119T114052Z
UID:7581-1743764400-1743768000@cral.osu-lyon.fr
SUMMARY:CRAL@Obs colloquium by Joop Schaye (Leiden)
DESCRIPTION:TBD
URL:https://cral.osu-lyon.fr/event/cralobs-colloquium-by-joop-schaye-leiden/
LOCATION:Observatoire
ATTACH;FMTTYPE=image/png:https://cral.osu-lyon.fr/wp-content/uploads/2023/11/image_defaut.png
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250411T110000
DTEND;TZID=Europe/Paris:20250411T120000
DTSTAMP:20260510T102755
CREATED:20241119T114156Z
LAST-MODIFIED:20250411T064745Z
UID:7583-1744369200-1744372800@cral.osu-lyon.fr
SUMMARY:CRAL@Obs seminar by Hannah Ubler (MPE)
DESCRIPTION:Observational constraints on massive black holes in the first billion years \nOne of the most surprising results coming out of the first years of science operations with JWST is the unexpectedly high abundance of actively accreting black holes in the early Universe. Compared to the local population\, many of these early black holes appear to differ in various aspects\, such as their relation to their host galaxies or their multi-wavelength properties. These observational findings challenge our understanding of the past evolution of present-day supermassive black holes\, and provide new ways to constrain theoretical models of black hole formation and growth. I will give an overview of recent observational results on massive black holes in the first few billion years\, driven by the unprecedented capabilities of JWST to explore cosmic dawn\, and with a focus on results from the NIRSpec GTO surveys JADES and GA-NIFS\, and the GO Large Program BlackTHUNDER.
URL:https://cral.osu-lyon.fr/event/cralobs-seminar-by-hannah-ubler-cambridge/
LOCATION:Observatoire
ATTACH;FMTTYPE=image/png:https://cral.osu-lyon.fr/wp-content/uploads/2023/11/image_defaut.png
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DTSTART;TZID=Europe/Paris:20250418T110000
DTEND;TZID=Europe/Paris:20250418T120000
DTSTAMP:20260510T102755
CREATED:20250124T172056Z
LAST-MODIFIED:20250409T143158Z
UID:7725-1744974000-1744977600@cral.osu-lyon.fr
SUMMARY:CRAL@ENS Seminar by Philipp Girichidis (Universität Heidelberg)
DESCRIPTION:Cosmic rays in the interstellar medium\nCosmic rays (CRs) are high energy particles with with an energy density comparable to the other energy densities in the interstellar medium (ISM) and very distinct cooling and transport processes. The low cooling efficiency of CRs allows them to travel long distances from their location of acceleration. As a result\, they have an impact on star formation at small scales and high densities. Furthermore\, the pressure exerted by CRs fills the galaxy\, enabling the launching of galactic-scale outflows. These outflows have a significant influence on galactic evolution. \nIn this review\, I will focus on the dynamical impact of CRs\, demonstrating how they shape the ISM and contribute to the launching of galactic outflows. There are significant uncertainties in our understanding of CR astrophysics\, particularly regarding the speed at which they are transported and the efficiency with which they lose energy. I will highlight the efforts to address these uncertainties by incorporating CRs into hydrodynamical simulations. These simulations aim to accurately model their evolution from non-relativistic to relativistic regimes\, while also considering the full magneto-hydrodynamical evolution. By doing so\, this improves the accuracy of the CR-driven dynamics and allows us to generate synthetic observables such as gamma rays and synchrotron radiation\, which provide valuable insights into the transport and cooling properties of CRs.
URL:https://cral.osu-lyon.fr/event/cralens-seminar-by-philipp-girichidis-universitat-heidelberg/
LOCATION:ENS
ATTACH;FMTTYPE=image/png:https://cral.osu-lyon.fr/wp-content/uploads/2023/11/image_defaut.png
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250425T110000
DTEND;TZID=Europe/Paris:20250425T120000
DTSTAMP:20260510T102755
CREATED:20241218T110243Z
LAST-MODIFIED:20241218T110243Z
UID:7642-1745578800-1745582400@cral.osu-lyon.fr
SUMMARY:CRAL@Obs seminar by Hakim Atek (IAP)
DESCRIPTION:TBD
URL:https://cral.osu-lyon.fr/event/cralobs-seminar-by-hakim-atek-iap/
LOCATION:Observatoire
ATTACH;FMTTYPE=image/png:https://cral.osu-lyon.fr/wp-content/uploads/2023/11/image_defaut.png
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