The MUSE Hubble Ultra Deep Field Survey

Nicolas F. Bouché (1) , Shy Genel (2) , Alisson Pellissier , Cédric Dubois (3) , Thierry Contini , Benoît Epinat , Annalisa Pillepich , Davor Krajnović , Dylan Nelson , Valentina Abril-Melgarejo (4) , Johan Richard (1) , Leindert Boogaard (4) , Michael Maseda (4) , Wilfried Mercier (5) , Roland Bacon (1) , Matthias Steinmetz , Mark Vogelsberger

1 CRAL - Centre de Recherche Astrophysique de Lyon
2 MPE - Max-Planck-Institut für Extraterrestrische Physik
3 Orange Labs
4 LAM - Laboratoire d'Astrophysique de Marseille
5 IRAP - Institut de recherche en astrophysique et planétologie

We investigate the specific angular momentum (sAM) j(< r) profiles of intermediate redshift (0.4 < z < 1.4) star-forming galaxies (SFGs) in the relatively unexplored regime of low masses (down to M⋆ ∼ 108 M⊙) and small sizes (down to Re ∼ 1.5 kpc), and we characterize the sAM scaling relation (i.e., Fall relation) and its redshift evolution. We have developed a 3D methodology to constrain sAM profiles of the star-forming gas using a forward modeling approach with GAlPAK3D that incorporates the effects of beam smearing, yielding the intrinsic morpho-kinematic properties even with limited spatial resolution data. Using mock observations from the TNG50 simulation, we find that our 3D methodology robustly recovers the star formation rate (SFR)-weighted j̃⋆(

Mots clés: galaxies: high-redshift; galaxies: evolution; galaxies: kinematics and dynamics; galaxies: structure

Domaines: Astrophysique [astro-ph]

Nicolas F. Bouché, Shy Genel, Alisson Pellissier, Cédric Dubois, Thierry Contini, et al.. The MUSE Hubble Ultra Deep Field Survey: XVI. The angular momentum of low-mass star-forming galaxies: A cautionary tale and insights from TNG50. Astronomy and Astrophysics - A&A, 2021, 654, pp.A49. ⟨10.1051/0004-6361/202040225⟩. ⟨hal-03371795⟩