Molecular gas in Low Luminosity Radio Galaxies in (proto-)clusters at z 0.4-2.6 - Observatoire de Paris
Conference Papers Year : 2018

Molecular gas in Low Luminosity Radio Galaxies in (proto-)clusters at z 0.4-2.6

Abstract

We investigate the role of the environment in processing molecular gas in radio galaxies (RGs). We observed five RGs at z=0.4-2.6 in dense Mpc-scale environment with the IRAM-30m telescope. We set four upper-limits and report a tentative CO(7-6) detection at signal-to-noise ratio SNR> 2 for COSMOS-FRI 70, at z=2.63. If the detection will be confirmed at higher SNR, COSMOS-FRI 70 will become the most distant brightest cluster galaxy (BCG) candidate detected in CO. We speculate that the cluster environment might have played a role in preventing the refueling via environmental mechanisms such as galaxy harassment, strangulation, ram-pressure, or tidal stripping. The RGs of this work are excellent targets for ALMA as well as next generation telescopes such as the James Webb Space Telescope.
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Dates and versions

obspm-03996843 , version 1 (20-02-2023)

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G. Castignani. Molecular gas in Low Luminosity Radio Galaxies in (proto-)clusters at z 0.4-2.6. AGN13: Beauty and the Beast. The 13th Italian meeting on Active Galactic Nuclei, 2018, à renseigner, Unknown Region. ⟨10.5281/zenodo.1472820⟩. ⟨obspm-03996843⟩

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