A\(^3\)COSMOS: Measuring the cosmic dust-attenuated star formation rate density at \(4 < z < 5\)

[Abridged] In recent years, conflicting results have provided an uncertain view of the dust-attenuated properties of \(z>4\) star-forming galaxies (SFGs). To solve this, we used the deepest data publicly available in COSMOS to build a mass-complete (\(>10^{9.5}\,M_{\odot}\)) sample of SFGs at...

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Published in:arXiv.org 2024-05
Main Authors: Magnelli, Benjamin, Adscheid, Sylvia, Tsan-Ming, Wang, Ciesla, Laure, Daddi, Emanuele, Delvecchio, Ivan, Elbaz, David, Fudamoto, Yoshinobu, Fukushima, Shuma, Franco, Maximilien, Gómez-Guijarro, Carlos, Gruppioni, Carlotta, Jiménez-Andrade, Eric F, Liu, Daizhong, Oesch, Pascal, Schinnerer, Eva, Traina, Alberto
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Language:English
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Attenuation
Cosmic dust
Cosmos
Dust
Galaxies
Star & galaxy formation
Star formation rate
Stellar mass
Ultraviolet emission
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creator Magnelli, Benjamin
Adscheid, Sylvia
Tsan-Ming, Wang
Ciesla, Laure
Daddi, Emanuele
Delvecchio, Ivan
Elbaz, David
Fudamoto, Yoshinobu
Fukushima, Shuma
Franco, Maximilien
Gómez-Guijarro, Carlos
Gruppioni, Carlotta
Jiménez-Andrade, Eric F
Liu, Daizhong
Oesch, Pascal
Schinnerer, Eva
Traina, Alberto
description [Abridged] In recent years, conflicting results have provided an uncertain view of the dust-attenuated properties of \(z>4\) star-forming galaxies (SFGs). To solve this, we used the deepest data publicly available in COSMOS to build a mass-complete (\(>10^{9.5}\,M_{\odot}\)) sample of SFGs at \(4M_\ast)\), is \(90\pm4\%\) for \(M_\ast\,=\,10^{10}\,M_\odot\), \(68\pm10\%\) for \(M_\ast=10^{8.9}\,M_\odot\) (i.e., \(0.03\times M^\star\); \(M^\star\) being the characteristic stellar mass of SFGs) and this value converges to \(60\pm10\%\) for \(M_\ast=10^{8}\,M_\odot\). Even at this early epoch, the fraction of the cosmic SFRD that is attenuated by dust remains thus significant.
doi_str_mv 10.48550/arxiv.2405.18086
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subjects Attenuation
Cosmic dust
Cosmos
Dust
Galaxies
Star & galaxy formation
Star formation rate
Stellar mass
Ultraviolet emission
title A\(^3\)COSMOS: Measuring the cosmic dust-attenuated star formation rate density at \(4 < z < 5\)
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