The ALMA REBELS survey: the dust-obscured cosmic star formation rate density at redshift 7
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
The ALMA REBELS survey : the dust-obscured cosmic star formation rate density at redshift 7. / Algera, Hiddo S. B.; Inami, Hanae; Oesch, Pascal A.; Sommovigo, Laura; Bouwens, Rychard J.; Topping, Michael W.; Schouws, Sander; Stefanon, Mauro; Stark, Daniel P.; Aravena, Manuel; Barrufet, Laia; da Cunha, Elisabete; Dayal, Pratika; Endsley, Ryan; Ferrara, Andrea; Fudamoto, Yoshinobu; Gonzalez, Valentino; Graziani, Luca; Hodge, Jacqueline A.; Hygate, Alexander P. S.; de Looze, Ilse; Nanayakkara, Themiya; Schneider, Raffaella; van der Werf, Paul P.
In: Monthly Notices of the Royal Astronomical Society, Vol. 518, No. 4, 01.02.2023, p. 6142-6157.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - The ALMA REBELS survey
T2 - the dust-obscured cosmic star formation rate density at redshift 7
AU - Algera, Hiddo S. B.
AU - Inami, Hanae
AU - Oesch, Pascal A.
AU - Sommovigo, Laura
AU - Bouwens, Rychard J.
AU - Topping, Michael W.
AU - Schouws, Sander
AU - Stefanon, Mauro
AU - Stark, Daniel P.
AU - Aravena, Manuel
AU - Barrufet, Laia
AU - da Cunha, Elisabete
AU - Dayal, Pratika
AU - Endsley, Ryan
AU - Ferrara, Andrea
AU - Fudamoto, Yoshinobu
AU - Gonzalez, Valentino
AU - Graziani, Luca
AU - Hodge, Jacqueline A.
AU - Hygate, Alexander P. S.
AU - de Looze, Ilse
AU - Nanayakkara, Themiya
AU - Schneider, Raffaella
AU - van der Werf, Paul P.
PY - 2023/2/1
Y1 - 2023/2/1
N2 - Cosmic dust is an essential component shaping both the evolution of galaxies and their observational signatures. How quickly dust builds up in the early Universe remains an open question that requires deep observations at (sub-)millimetre wavelengths to resolve. Here, we use Atacama Large Millimeter Array observations of 45 galaxies from the Reionization Era Bright Emission Line Survey (REBELS) and its pilot programs, designed to target [C II] and dust emission in UV-selected galaxies at z similar to 7, to investigate the dust content of high-redshift galaxies through a stacking analysis. We find that the typical fraction of obscured star formation integral(obs) = SFRIR/SFRUV+IR depends on stellar mass, similar to what is observed at lower redshift, and ranges from f(obs) approximate to 0.3 - 0.6 for galaxies with log(10)(M*/M circle dot) = 9.4-10.4. We further adopt the z similar to 7 stellar mass function from the literature to extract the obscured cosmic star formation rate density (SFRD) from the REBELS survey. Our results suggest only a modest decrease in the SFRD between 3 less than or similar to z less than or similar to 7, with dust-obscured star formation still contributing similar to 30 per cent at z similar to 7. While we extensively discuss potential caveats, our analysis highlights the continued importance of dust-obscured star formation even well into the epoch of reionization.
AB - Cosmic dust is an essential component shaping both the evolution of galaxies and their observational signatures. How quickly dust builds up in the early Universe remains an open question that requires deep observations at (sub-)millimetre wavelengths to resolve. Here, we use Atacama Large Millimeter Array observations of 45 galaxies from the Reionization Era Bright Emission Line Survey (REBELS) and its pilot programs, designed to target [C II] and dust emission in UV-selected galaxies at z similar to 7, to investigate the dust content of high-redshift galaxies through a stacking analysis. We find that the typical fraction of obscured star formation integral(obs) = SFRIR/SFRUV+IR depends on stellar mass, similar to what is observed at lower redshift, and ranges from f(obs) approximate to 0.3 - 0.6 for galaxies with log(10)(M*/M circle dot) = 9.4-10.4. We further adopt the z similar to 7 stellar mass function from the literature to extract the obscured cosmic star formation rate density (SFRD) from the REBELS survey. Our results suggest only a modest decrease in the SFRD between 3 less than or similar to z less than or similar to 7, with dust-obscured star formation still contributing similar to 30 per cent at z similar to 7. While we extensively discuss potential caveats, our analysis highlights the continued importance of dust-obscured star formation even well into the epoch of reionization.
KW - galaxies: evolution
KW - galaxies: high-redshift
KW - submillimetre: galaxies
KW - SPECTRAL ENERGY-DISTRIBUTION
KW - LYMAN-BREAK GALAXIES
KW - ULTRA-DEEP FIELD
KW - LUMINOSITY FUNCTION
KW - FORMING GALAXIES
KW - SPECTROSCOPIC SURVEY
KW - PHYSICAL-PROPERTIES
KW - REIONIZATION ERA
KW - INFRARED EXCESS
KW - EVOLUTION
U2 - 10.1093/mnras/stac3195
DO - 10.1093/mnras/stac3195
M3 - Journal article
VL - 518
SP - 6142
EP - 6157
JO - Royal Astronomical Society. Monthly Notices
JF - Royal Astronomical Society. Monthly Notices
SN - 0035-8711
IS - 4
ER -
ID: 334849623