Constraints on the host galaxy and AGN properties of three z > 6 JWST AGN from NOEMA observations

arXiv (Cornell University) 2026 Preprint Open access

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Authors: Giovanni Mazzolari, Hannah Übler, Rodrigo Herrera Camus, R. Davies, Linda Tacconi, Dieter Lutz, Natascha Förster Schreiber, Francesco D’Eugenio, Minju Lee, Capucine Barfety, Elena Bertola, Andrew Bunker
+23 more Andreas Burkert, Jianhang Chen, Giovanni Cresci, F. Eisenhauer, Juan M. Espejo Salcedo, Simon Flesch, R. Genzel, Xihan Ji, Lilian L. Lee, Daizhong Liu, C. Marconcini, Roberto Maiolino, Thorsten Naab, Amit Nestor Shachar, Meghana Pannikkote, Eleonora Parlanti, Stavros Pastras, Michele Perna, Claudia Pulsoni, Bruno Rodríguez Del Pino, Eckhard Sturm, Taro T. Shimizu, Giulia Tozzi
DOI: 10.48550/arxiv.2603.29652
Cited by: 1

Abstract

We targeted with deep NOEMA observations the [CII]158$μ$m emission of three JWST-discovered AGN at z>6. Two of them have the typical features of Little Red Dots (LRDs), while the third one is a blue, extended, Type I AGN. We do not significantly detect [CII] emission or dust continuum in any of the targets, even after stacking. The resulting [CII] luminosity upper limits, $\log (L_{[CII]}/L_{\odot})

Fields of Study & Subjects

Galaxies: Formation Evolution Phenomena Astronomy and Astrophysical Research Astrophysics and Star Formation Studies

Publication details

Journal / source
arXiv (Cornell University)
Publication date
31 March 2026
Document type
Preprint