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    Laboratoire d’Astrophysique de Marseille

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    Café-Club, Hiroya UMEDA: “Cosmic reionization sources and history probed with large galaxy surveys and photoionization modeling”.

    Hiroya UMEDA (Institute for Cosmic Ray Research, University of Tokyo): "Cosmic reionization sources and history probed with large galaxy surveys and photoionization modeling". You can find the schedule of upcoming café-clubs and the video of old ones here. Take care, Carlo, Meriam, Mathilde ---------------- ABSTRACT Cosmic reionization scenarios are explored by investigating cosmic reionization history […]

    Café-Club, Silvia MARTOCCHIA: “The origin of globular clusters and their anomalous stellar populations”.

    Silvia MARTOCCHIA (Astronomisches Rechen-Institut, Universität Heidelberg): "The origin of globular clusters and their anomalous stellar populations". You can find the schedule of upcoming café-clubs and the video of old ones here. Take care, Carlo, Meriam, Mathilde ABSTRACT Globular clusters (GCs),agglomerates of hundreds of thousands stars, are among the oldest (age > 10 Gyr) luminous sources  […]

    Cafe-Club, Denis BURGARELLA “Spectroscopic verification of very luminous galaxy candidates in the early universe”.

    Denis BURGARELLA (LAM): "Spectroscopic verification of very luminous galaxy candidates in the early universe". You can find the schedule of upcoming café-clubs and the video of old ones here. Take care, Carlo, Meriam, Mathilde ---------------- ABSTRACT During the first 500 million years of cosmic history, the first stars and galaxies formed and seeded the cosmos […]

    Café-Club, Franciele KRUCZKIEWICZ: “Water’s journey to Earth: A Virtual Reality outreach project +++ with demo with VR headset”.

    Franciele KRUCZKIEWICZ (LAM): "Water's journey to Earth: A Virtual Reality outreach project +++ with demo with VR headset". You can find the schedule of upcoming café-clubs and the video of old ones here. Take care, Carlo, Meriam, Mathilde ---------------- ABSTRACT Astrochemistry, a relatively new field within astronomy, uses molecules in space as a tool to […]

    Café-Club, Pierre BOLDRINI: “ΛCDM cosmological simulation of Monge-Ampère gravity via optimal transport theory”.

    Pierre BOLDRINI (Institut d'Astrophysique de Paris): "ΛCDM cosmological simulation of Monge-Ampère gravity via optimal transport theory". You can find the schedule of upcoming café-clubs and the video of old ones here. Take care, Carlo, Meriam, Mathilde ---------------- ABSTRACT Monge-Ampère gravitation is a modification of the classical Newtonian gravity where the linear Poisson equation is replaced by the […]

    Café-Club, Catherine CERNY: “Probing the inner density profile of galaxy clusters with strong lensing and MUSE spectroscopy”

    Catherine CERNY (Centre for Extragalactic Astronomy, Durham University): "Probing the inner density profile of galaxy clusters with strong lensing and MUSE spectroscopy". The cafe-club will take place at 2:00 pm in the Library at LAM and on usual AMU virtual room. (Meeting ID : 968 7683 2544 -- Passcode : 173347) You can find the schedule […]

    Cafe-Club, Malgorzata SIUDEK (ICE, CSIC, Barcelona): “Supermassive black holes found in distant dwarf galaxies”

    Malgorzata SIUDEK (Institut de Física d'Altes Energies, The Barcelona Institute of Science and Technology & Institute of Space Sciences (ICE, CSIC), Barcelona): "Supermassive black holes found in distant dwarf galaxies". You can find the schedule of upcoming café-clubs and the video of old ones here. Take care, Carlo, Meriam, Mathilde ---------------- ABSTRACT The statistical power […]

    Cafe-Club, Richard FEDER-STAEHLE (Caltech): “PCAT-DE: Reconstructing point-like and diffuse emission using spatial and spectral information”

      Richard FEDER-STAEHLE (Caltech): "PCAT-DE: Reconstructing point-like and diffuse emission using spatial and spectral information" You can find the schedule of upcoming café-clubs and the video of old ones here. Take care, Carlo, Meriam, Mathilde ABSTRACT I will present recent progress on probabilistic cataloging (PCAT), a transdimensional, Bayesian hierarchical modelling framework initially designed for crowded […]

    Cosmo Circle

    Friday the 5th of May, from 15:00 to 16:00, we will have our eighth Cosmo Circle meeting in the Mistral meeting room (2nd floor at LAM). Raphael Gavazzi will present the recent paper " The galaxy formation origin of the lensing is low problem " to be found here: https://arxiv.org/abs/2211.01744 and if times allows he […]

    Matthew LEHNERT (CRAL, Lyon), who will talk about “A possible stream of accreting cold atomic and molecular gas in the halo of a high redshift radio galaxy”. The cafe-club will take place at 2:00 pm on usual AMU virtual room (link below). The broadcast in the Library at LAM will be confirmed on Wednesday reminder. https://univ-amu-fr.zoom.us/j/96876832544?pwd=NnBaZEdXd3dFUFBRSkRFY05WS1d4dz09 (Meeting ID : 968 7683 2544 — Passcode : 173347) You can find the schedule of upcoming café-clubs and the video of old ones at http://wiki.lam.fr/geco/CafeClub 

 Take care, Carlo, Meriam, Mathilde —————- ABSTRACT I discuss our recent article, https://arxiv.org/abs/2303.17484, on the detection of the fine structure 3P1-3P0 transition of atomic carbon in and around a massive radio galaxy at z=3.8. This transition of neutral carbon is generally emitted in cold dense regions of atomic and molecular gas. One of the interesting features we observe is a filamentary structure that is ~100 kpc in projected length, is narrow, has a velocity gradient of ~600 km/s over its length, and appears to terminate in both projection and velocity at the extended emission in the immediate environment of the radio galaxy. Furthermore, I put this result in context of our previous and on-going work on detecting low surface brightness molecular gas in galaxy halos and proto-intracluster media at high redshifts and in understanding the physics underlying how such gas might arise in halos and streams.

    Matthew LEHNERT (CRAL, Lyon), who will talk about "A possible stream of accreting cold atomic and molecular gas in the halo of a high redshift radio galaxy". The cafe-club will take place at 2:00 pm on usual AMU virtual room (link below). The broadcast in the Library at LAM will be confirmed on Wednesday reminder. […]

    Cafe-Club, Patrice THEULÉ (LAM): “Warm temperature formation of interstellar molecular hydrogen on a carbonaceous surface”

    Patrice THEULÉ (LAM): "Warm temperature formation of interstellar molecular hydrogen on a carbonaceous surface". You can find the schedule of upcoming café-clubs and the video of old ones here. Take care, Carlo, Meriam, Mathilde ---------------- ABSTRACT Molecular hydrogen is a key ingredient and the physics and chemistry of the interstellar medium. The micro-physics of its formation […]

    Cafe-Club, Michal BILEK (LERMA, Observatoire de Paris; Collège de France; Université de Strasbourg): “What is the origin of the different kinematic morphologies of early-type galaxies?”.

    Michal BILEK (LERMA, Observatoire de Paris; Collège de France; Université de Strasbourg), who will talk about "What is the origin of the different kinematic morphologies of early-type galaxies?". You can find the schedule of upcoming café-clubs and the video of old ones at http://wiki.lam.fr/geco/CafeClub Take care, Carlo, Meriam, Mathilde   ---------------- ABSTRACT Early-type galaxies (i.e. […]