Characterization of Two 2 mm detected Optically Obscured Dusty Star-forming Galaxies
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Characterization of Two 2 mm detected Optically Obscured Dusty Star-forming Galaxies. / Manning, Sinclaire M.; Casey, Caitlin M.; Zavala, Jorge A.; Magdis, Georgios E.; Drew, Patrick M.; Champagne, Jaclyn B.; Aravena, Manuel; Béthermin, Matthieu; Clements, David L.; Finkelstein, Steven L.; Fujimoto, Seiji; Hayward, Christopher C.; Hodge, Jacqueline A.; Ilbert, Olivier; Kartaltepe, Jeyhan S.; Knudsen, Kirsten K.; Koekemoer, Anton M.; Man, Allison W.S.; Sanders, David B.; Sheth, Kartik; Spilker, Justin S.; Staguhn, Johannes; Talia, Margherita; Treister, Ezequiel; Yun, Min S.
In: Astrophysical Journal, Vol. 925, No. 1, 23, 21.01.2022.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Characterization of Two 2 mm detected Optically Obscured Dusty Star-forming Galaxies
AU - Manning, Sinclaire M.
AU - Casey, Caitlin M.
AU - Zavala, Jorge A.
AU - Magdis, Georgios E.
AU - Drew, Patrick M.
AU - Champagne, Jaclyn B.
AU - Aravena, Manuel
AU - Béthermin, Matthieu
AU - Clements, David L.
AU - Finkelstein, Steven L.
AU - Fujimoto, Seiji
AU - Hayward, Christopher C.
AU - Hodge, Jacqueline A.
AU - Ilbert, Olivier
AU - Kartaltepe, Jeyhan S.
AU - Knudsen, Kirsten K.
AU - Koekemoer, Anton M.
AU - Man, Allison W.S.
AU - Sanders, David B.
AU - Sheth, Kartik
AU - Spilker, Justin S.
AU - Staguhn, Johannes
AU - Talia, Margherita
AU - Treister, Ezequiel
AU - Yun, Min S.
N1 - Publisher Copyright: © 2022. The Author(s). Published by the American Astronomical Society..
PY - 2022/1/21
Y1 - 2022/1/21
N2 - The 2 mm Mapping Obscuration to Reionization with ALMA (MORA) Survey was designed to detect high-redshift (z ⪆ 4), massive, dusty star-forming galaxies (DSFGs). Here we present two likely high-redshift sources, identified in the survey, whose physical characteristics are consistent with a class of optical/near-infrared (OIR)-invisible DSFGs found elsewhere in the literature. We first perform a rigorous analysis of all available photometric data to fit spectral energy distributions and estimate redshifts before deriving physical properties based on our findings. Our results suggest the two galaxies, called MORA-5 and MORA-9, represent two extremes of the "OIR-dark"class of DSFGs. MORA-5 ( ) is a significantly more active starburst with a star formation rate (SFR) of M o˙ yr-1 compared to MORA-9 ( ), whose SFR is a modest M o˙ yr-1. Based on the stellar masses (M ∗ ≈ 1010-11 M o˙), space density (n ∼ (5 2) 10-6 Mpc-3, which incorporates two other spectroscopically confirmed OIR-dark DSFGs in the MORA sample at z = 4.6 and z = 5.9), and gas depletion timescales (<1 Gyr) of these sources, we find evidence supporting the theory that OIR-dark DSFGs are the progenitors of recently discovered 3 < z < 4 massive quiescent galaxies.
AB - The 2 mm Mapping Obscuration to Reionization with ALMA (MORA) Survey was designed to detect high-redshift (z ⪆ 4), massive, dusty star-forming galaxies (DSFGs). Here we present two likely high-redshift sources, identified in the survey, whose physical characteristics are consistent with a class of optical/near-infrared (OIR)-invisible DSFGs found elsewhere in the literature. We first perform a rigorous analysis of all available photometric data to fit spectral energy distributions and estimate redshifts before deriving physical properties based on our findings. Our results suggest the two galaxies, called MORA-5 and MORA-9, represent two extremes of the "OIR-dark"class of DSFGs. MORA-5 ( ) is a significantly more active starburst with a star formation rate (SFR) of M o˙ yr-1 compared to MORA-9 ( ), whose SFR is a modest M o˙ yr-1. Based on the stellar masses (M ∗ ≈ 1010-11 M o˙), space density (n ∼ (5 2) 10-6 Mpc-3, which incorporates two other spectroscopically confirmed OIR-dark DSFGs in the MORA sample at z = 4.6 and z = 5.9), and gas depletion timescales (<1 Gyr) of these sources, we find evidence supporting the theory that OIR-dark DSFGs are the progenitors of recently discovered 3 < z < 4 massive quiescent galaxies.
U2 - 10.3847/1538-4357/ac366a
DO - 10.3847/1538-4357/ac366a
M3 - Journal article
AN - SCOPUS:85124205688
VL - 925
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 1
M1 - 23
ER -
ID: 307523239