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

التفاصيل البيبلوغرافية
العنوان:	A$^3$COSMOS: Measuring the cosmic dust-attenuated star formation rate density at $4 < z < 5$
المؤلفون:	Magnelli, Benjamin, Adscheid, Sylvia, Wang, Tsan-Ming, 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
المصدر:	A&A 688, A55 (2024)
سنة النشر:	2024
المجموعة:	Astrophysics
مصطلحات موضوعية:	Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
الوصف:	[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 $4M_\ast)$ converges at $M_\ast<10^{9}\,M_\odot$ and is dominated by SFGs with $M_\ast\sim10^{9.5-10.5}\,M_\odot$. The fraction of the cosmic SFRD that is attenuated by dust, ${\rm SFRD}_{\rm IR}(>M_\ast)/ {\rm SFRD}(>M_\ast)$, 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. Comment: Accepted for publication in A&A; 14 pages and 8 figures
نوع الوثيقة:	Working Paper
DOI:	10.1051/0004-6361/202450081
URL الوصول:	http://arxiv.org/abs/2405.18086
رقم الأكسشن:	edsarx.2405.18086
قاعدة البيانات:	arXiv

الوصف
DOI:	10.1051/0004-6361/202450081