Massive galaxies at z>3.5 assembled stars earlier than theoretical models predict and exhibit gray dust attenuation, especially at the highest masses.
The Cosmic Evolution Survey (COSMOS) -- Overview
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abstract
The Cosmic Evolution Survey (COSMOS) is designed to probe the correlated evolution of galaxies, star formation, active galactic nuclei (AGN) and dark matter (DM) with large-scale structure (LSS) over the redshift range z $> 0.5 $ to 6. The survey includes multi-wavelength imaging and spectroscopy from X-ray to radio wavelengths covering a 2 $\sq$\deg area, including HST imaging. Given the very high sensitivity and resolution of these datasets, COSMOS also provides unprecedented samples of objects at high redshift with greatly reduced cosmic variance, compared to earlier surveys. Here we provide a brief overview of the survey strategy, the characteristics of the major COSMOS datasets, and summarize the science goals.
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astro-ph.GA 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Stacking of 850-micron data reveals SFR increasing with redshift and declining from irregular to spheroidal galaxies at 2<z<4.5, with a chemical evolution model reproducing the dust-to-stellar mass ratio rise to z~8.
citing papers explorer
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Massive Galaxies Form Early and Gray: Stellar Assembly and Dust Attenuation at $\mathbf{z>3.5}$ from CAPERS
Massive galaxies at z>3.5 assembled stars earlier than theoretical models predict and exhibit gray dust attenuation, especially at the highest masses.
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COSMOS-Web: Star formation along the early Hubble sequence and the evolution of dust over the redshift range 0<z<12
Stacking of 850-micron data reveals SFR increasing with redshift and declining from irregular to spheroidal galaxies at 2<z<4.5, with a chemical evolution model reproducing the dust-to-stellar mass ratio rise to z~8.