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    Laboratoire d’Astrophysique de Marseille

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    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. […]

    Cafe-Club, Andrea SACCARDI, Susanna VERGANI (Observatoire de Paris, Université PSL): “Dissecting the interstellar medium of an extremely distant galaxy with GRB spectroscopy”

    Andrea SACCARDI and Susanna VERGANI (Observatoire de Paris, Université PSL), who will talk about "Dissecting the interstellar medium of an extremely distant galaxy with GRB spectroscopy". 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 […]

    Cafe-Club, Shawn KNABEL (University of California-Los Angeles): “Breaking MAD: joint constraints on the mass profiles and orbital anisotropies of elliptical galaxies with spatially resolved kinematics”.

    Shawn KNABEL (University of California-Los Angeles): "Breaking MAD: joint constraints on the mass profiles and orbital anisotropies of elliptical galaxies with spatially resolved kinematics". 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 Shawn KNABEL) We measure spatially-resolved kinematics and show […]

    Cafe-Club, Carla CORNIL BAÏOTTO (Instituto de Física y Astronomía, Universidad de Valparaíso),: “Strong lens modeling of rich galaxy clusters”.

    Carla CORNIL BAÏOTTO (Instituto de Física y Astronomía, Universidad de Valparaíso): "Strong lens modeling of rich galaxy clusters". 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 In the inner core of rich galaxy clusters, gravity can create remarkable visual […]

    Shedding new light on the first billion years of the Universe, 16th edition of the Cosmo/GECO conference in Marseille

    Palais des Arts - Parc Chanot

    This conference will focus on the high redshift Universe, both from observations by the latest observational methods (including photometry, spectroscopy), and the instruments that are able to bring observational constraints (of course JWST, but also ALMA, NOEMA and the large ground-based telescope). We would also like to learn about the most recent and state of […]