%0 Journal Article %1 deugenio2023fastrotator %A D'Eugenio, Francesco %A Perez-Gonzalez, Pablo %A Maiolino, Roberto %A Scholtz, Jan %A Perna, Michele %A Circosta, Chiara %A Uebler, Hannah %A Arribas, Santiago %A Boeker, Torsten %A Bunker, Andrew %A Carniani, Stefano %A Charlot, Stephane %A Chevallard, Jacopo %A Cresci, Giovanni %A Curtis-Lake, Emma %A Jones, Gareth %A Kumari, Nimisha %A Lamperti, Isabella %A Looser, Tobias %A Parlanti, Eleonora %A Rix, Hans-Walter %A Robertson, Brant %A Del Pino, Bruno Rodriguez %A Tacchella, Sandro %A Venturi, Giacomo %A Willott, Chris %D 2023 %K quenching_mechanism %T A fast-rotator post-starburst galaxy quenched by supermassive black-hole feedback at z=3 %U http://arxiv.org/abs/2308.06317 %X There is compelling evidence that the most massive galaxies in the Universe stopped forming stars due to the time-integrated feedback from their central super-massive black holes (SMBHs). However, the exact quenching mechanism is not yet understood, because local massive galaxies were quenched billions of years ago. We present JWST/NIRSpec integral-field spectroscopy observations of GS-10578, a massive, quiescent galaxy at redshift z=3.064. From the spectrum we infer that the galaxy has a stellar mass of $M_*=1.6\pm0.2 10^11$ MSun and a dynamical mass $M_dyn=2.0\pm0.5 10^11$ MSun. Half of its stellar mass formed at z=3.7-4.6, and the system is now quiescent, with the current star-formation rate SFR<9 MSun/yr. We detect ionised- and neutral-gas outflows traced by OIII emission and NaI absorption. Outflow velocities reach $v_out\approx$1,000 km/s, comparable to the galaxy escape velocity and too high to be explained by star formation alone. GS-10578 hosts an Active Galactic Nucleus (AGN), evidence that these outflows are due to SMBH feedback. The outflow rates are 0.14-2.9 and 30-300 MSun/yr for the ionised and neutral phases, respectively. The neutral outflow rate is ten times higher than the SFR, hence this is direct evidence for ejective SMBH feedback, with mass-loading capable of interrupting star formation by rapidly removing its fuel. Stellar kinematics show ordered rotation, with spin parameter $łambda_Re=0.62\pm0.07$, meaning GS-10578 is rotation supported. This study shows direct evidence for ejective AGN feedback in a massive, recently quenched galaxy, thus clarifying how SMBHs quench their hosts. Quenching can occur without destroying the stellar disc.

@article{deugenio2023fastrotator, abstract = {There is compelling evidence that the most massive galaxies in the Universe stopped forming stars due to the time-integrated feedback from their central super-massive black holes (SMBHs). However, the exact quenching mechanism is not yet understood, because local massive galaxies were quenched billions of years ago. We present JWST/NIRSpec integral-field spectroscopy observations of GS-10578, a massive, quiescent galaxy at redshift z=3.064. From the spectrum we infer that the galaxy has a stellar mass of $M_*=1.6\pm0.2 \times 10^{11}$ MSun and a dynamical mass $M_{\rm dyn}=2.0\pm0.5 \times 10^{11}$ MSun. Half of its stellar mass formed at z=3.7-4.6, and the system is now quiescent, with the current star-formation rate SFR<9 MSun/yr. We detect ionised- and neutral-gas outflows traced by [OIII] emission and NaI absorption. Outflow velocities reach $v_{\rm out}\approx$1,000 km/s, comparable to the galaxy escape velocity and too high to be explained by star formation alone. GS-10578 hosts an Active Galactic Nucleus (AGN), evidence that these outflows are due to SMBH feedback. The outflow rates are 0.14-2.9 and 30-300 MSun/yr for the ionised and neutral phases, respectively. The neutral outflow rate is ten times higher than the SFR, hence this is direct evidence for ejective SMBH feedback, with mass-loading capable of interrupting star formation by rapidly removing its fuel. Stellar kinematics show ordered rotation, with spin parameter $\lambda_{Re}=0.62\pm0.07$, meaning GS-10578 is rotation supported. This study shows direct evidence for ejective AGN feedback in a massive, recently quenched galaxy, thus clarifying how SMBHs quench their hosts. Quenching can occur without destroying the stellar disc.}, added-at = {2023-08-17T05:10:39.000+0200}, author = {D'Eugenio, Francesco and Perez-Gonzalez, Pablo and Maiolino, Roberto and Scholtz, Jan and Perna, Michele and Circosta, Chiara and Uebler, Hannah and Arribas, Santiago and Boeker, Torsten and Bunker, Andrew and Carniani, Stefano and Charlot, Stephane and Chevallard, Jacopo and Cresci, Giovanni and Curtis-Lake, Emma and Jones, Gareth and Kumari, Nimisha and Lamperti, Isabella and Looser, Tobias and Parlanti, Eleonora and Rix, Hans-Walter and Robertson, Brant and Del Pino, Bruno Rodriguez and Tacchella, Sandro and Venturi, Giacomo and Willott, Chris}, biburl = {https://www.bibsonomy.org/bibtex/21f0d6021753597bf13d18e34ccd07035/nichaleet}, description = {A fast-rotator post-starburst galaxy quenched by supermassive black-hole feedback at z=3}, interhash = {da5884ce3add4d49876ff83f7e3773cd}, intrahash = {1f0d6021753597bf13d18e34ccd07035}, keywords = {quenching_mechanism}, note = {cite arxiv:2308.06317Comment: 40 pages, 9 figures, submitted to Nat. Ast., comments welcome!}, timestamp = {2023-08-17T05:10:39.000+0200}, title = {A fast-rotator post-starburst galaxy quenched by supermassive black-hole feedback at z=3}, url = {http://arxiv.org/abs/2308.06317}, year = 2023 }