Molecular Gas Excitation of the Massive Dusty Starburst CRLE and the Main-sequence Galaxy HZ10 at z= 5.7 in the COSMOS Field
D Vieira, DA Riechers, R Pavesi, AL Faisst… - The Astrophysical …, 2022 - iopscience.iop.org
The Astrophysical Journal, 2022•iopscience.iop.org
Abstract We report CO (5→ 4) and CO (6→ 5) line observations in the dusty starbursting
galaxy CRLE (z= 5.667) and the main-sequence (MS) galaxy HZ10 (z= 5.654) with the
Northern Extended Millimeter Array. CRLE is the most luminous z> 5 starburst in the
COSMOS field and HZ10 is the most gas-rich" normal" galaxy currently known at z> 5. We
find line luminosities for CO (5→ 4) and CO (6→ 5) of (4.9±0.5) and (3.8±0.4)× 10 10 K km
s− 1 pc 2 for CRLE and upper limits of< 0.76 and< 0.60× 10 10 K km s− 1 pc 2 for HZ10 …
galaxy CRLE (z= 5.667) and the main-sequence (MS) galaxy HZ10 (z= 5.654) with the
Northern Extended Millimeter Array. CRLE is the most luminous z> 5 starburst in the
COSMOS field and HZ10 is the most gas-rich" normal" galaxy currently known at z> 5. We
find line luminosities for CO (5→ 4) and CO (6→ 5) of (4.9±0.5) and (3.8±0.4)× 10 10 K km
s− 1 pc 2 for CRLE and upper limits of< 0.76 and< 0.60× 10 10 K km s− 1 pc 2 for HZ10 …
Abstract
We report CO (5→ 4) and CO (6→ 5) line observations in the dusty starbursting galaxy CRLE (z= 5.667) and the main-sequence (MS) galaxy HZ10 (z= 5.654) with the Northern Extended Millimeter Array. CRLE is the most luminous z> 5 starburst in the COSMOS field and HZ10 is the most gas-rich" normal" galaxy currently known at z> 5. We find line luminosities for CO (5→ 4) and CO (6→ 5) of (4.9±0.5) and (3.8±0.4)× 10 10 K km s− 1 pc 2 for CRLE and upper limits of< 0.76 and< 0.60× 10 10 K km s− 1 pc 2 for HZ10, respectively. The CO excitation of CRLE appears comparable to other z> 5 dusty star-forming galaxies. For HZ10, these line luminosity limits provide the first significant constraints of this kind for an MS galaxy at z> 5. We find the upper limit of
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