Life beyond 30: probing the $-20<M_\mathrm{UV}<-17$ luminosity function at $8<z<13$ with the NIRCam parallel field of the MIRI Deep Survey - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue The Astrophysical journal letters Année : 2023

Life beyond 30: probing the $-20

Pablo Pérez-González
Luca Costantin
Danial Langeroodi
Pierluigi Rinaldi
Marianna Annunziatella
Olivier Ilbert
Luis Colina
Hans Ulrik Nørgaard-Nielsen
Thomas Greve
Göran Östlin
Gillian Wright
Almudena Alonso-Herrero
Javier Álvarez-Márquez
Karina Caputi
Andreas Eckart
Macarena García-Marín
Jens Hjorth
Sarah Kendrew
John Pye
Tuomo Tikkanen
  • Fonction : Auteur
Paul van der Werf
Fabian Walter
Martin Ward
Arjan Bik
Leindert Boogaard
Sarah Bosman
Alejandro Crespo Gómez
Steven Gillman
Edoardo Iani
Iris Jermann
Jens Melinder
Romain Meyer
Thibaud Moutard
Ewine van Dishoek
Thomas Henning
Manuel Guedel
Florian Peissker
Tom Ray
Bart Vandenbussche
Ángela García-Argumánez
Rosa María Mérida

Résumé

We present the ultraviolet luminosity function and an estimate of the cosmic star formation rate density at $88$ galaxy candidates based on their dropout nature in the $F115W$ and/or $F150W$ filters, a high probability for their photometric redshifts, estimated with three different codes, being at $z>8$, good fits based on $\chi^2$ calculations, and predominant solutions compared to $z<8$ alternatives. We find mild evolution in the luminosity function from $z\sim13$ to $z\sim8$, i.e., only a small increase in the average number density of $\sim$0.2~dex, while the faint-end slope and absolute magnitude of the knee remain approximately constant, with values $\alpha=-2.3\pm0.2$ and $M^*=-20.8\pm0.2$~mag. Comparing our results with the predictions of a wide range of state-of-the-art galaxy evolution models, we find two main results: (1) a slower increase with time in the cosmic star formation rate density compared to a steeper rise predicted by models; (2) nearly a factor of 10 higher star formation activity concentrated in scales around 2~kpc in galaxies with stellar masses $\sim10^8$~M$_\odot$ during the first 350~Myr of the Universe ($z\sim12$), with models matching better the observations $\sim$150~Myr later, by $z\sim9$.
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hal-04006173 , version 1 (09-11-2023)

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Pablo Pérez-González, Luca Costantin, Danial Langeroodi, Pierluigi Rinaldi, Marianna Annunziatella, et al.. Life beyond 30: probing the $-20The Astrophysical journal letters, 2023, 951 (1), pp.L1. ⟨10.3847/2041-8213/acd9d0⟩. ⟨hal-04006173⟩
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