description Simon Lilly Overview
Simon Lilly is a Swiss astronomer at ETH Zurich whose research includes observational cosmology and the evolution of galaxies. He led the zCOSMOS redshift survey, which measured distances and other properties for large samples of galaxies in the COSMOS field. His work has contributed to studies of how the galaxy luminosity function and the broader galaxy population change over cosmic time.
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What is Simon Lilly known for in astronomy?
Simon Lilly is a Swiss astronomer at ETH Zurich whose work includes observational cosmology and galaxy evolution. He is especially associated with large galaxy surveys.
What was the zCOSMOS survey?
zCOSMOS was a redshift survey that measured distances and other properties for large samples of galaxies in the COSMOS field. Simon Lilly led the survey.
What does a galaxy redshift survey measure?
A redshift survey uses the shift of spectral features to estimate how rapidly the universe has carried distant light toward longer wavelengths. It can then help map galaxy distances and large-scale structure.
How does Simon Lilly's work relate to galaxy evolution?
His survey work provides measurements of galaxies across distance and cosmic time. Those observations help astronomers study how galaxy populations changed as the universe developed.
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