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 […]
