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Nick Scoville

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description Nick Scoville Overview

Nick Scoville is a modern American astronomer specializing in galaxy surveys. His work focuses on observing and analyzing distant galaxies to understand their formation and evolution. He leads the COSMOS survey, a comprehensive project mapping the universe’s early structures. This research benefits astronomers studying large-scale structure, galaxy populations, and the processes driving cosmic development.

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What is the COSMOS survey in astronomy?

The Cosmic Evolution Survey (COSMOS) is one of the largest multi-wavelength surveys of the universe, covering a 2-square-degree field with observations from telescopes including Hubble, Spitzer, Subaru, and ALMA. Nick Scoville of Caltech served as its principal investigator at its inception.

What did Nick Scoville contribute to molecular cloud research?

Scoville pioneered the use of carbon monoxide (CO) emission lines to trace the distribution of cold molecular gas—the raw material for star formation—in galaxies. His large-scale CO surveys of the Milky Way and other galaxies became foundational to the study of the interstellar medium.

Where does Nick Scoville work?

Nick Scoville is the Francis L. Moseley Professor of Astronomy at the California Institute of Technology (Caltech) in Pasadena. He has been affiliated with Caltech for decades, having previously held positions at the University of Massachusetts Amherst.

Why do astronomers use carbon monoxide to study molecular clouds?

Molecular hydrogen (H₂), the main constituent of molecular clouds, is extremely difficult to observe directly at the cold temperatures of interstellar space. Carbon monoxide (CO), the second-most abundant molecule in these clouds, emits detectable radio and millimeter-wavelength lines that serve as a practical tracer for the otherwise invisible H₂ gas.