Dr. Judith Cohen

Professor

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Biography

Judith G. Cohen is the Page Professor Emeritus of Astronomy at California Institute of Technology. She earned her B.A. from Radcliffe College in 1967, her M.S. from Caltech in 1969, and her Ph.D. in 1971. Dr. Cohen's academic career at Caltech includes positions as Associate Professor from 1979 to 1988 and as a Professor from 1988 to 2005, becoming a Page Professor in 2005. For her service, she acted as the Executive Officer of Astronomy from 1995 to 1996. Her research interests encompass Near-Field Cosmology and Chemical Evolution of Galaxies, particularly focusing on the Local Group and studying the properties of the distant Universe. She employs high-dispersion spectra obtained from the Keck Telescope to analyze star formation, chemical evolution, and the historical development of nearby stellar systems. Her recent work includes investigating the chemical uniformity of globular clusters in galaxies such as M31 and understanding the role of supernovae in early chemical enrichment of the Universe. Dr. Cohen has made significant contributions to the design and development of instruments at the Keck Observatory, participating in projects that have advanced astronomical research capabilities.

Research Interests

Requirements for California Institute of Technology

Doctorate Program
Requirements
TOEFL
Total
Required:100
IELTS
Overall
Required:7
Prerequisites
Bachelor's degree or equivalent Strong background in mathematics and physical sciences
Application Checklist
  • Online Application
  • Statement of Purpose
  • Three Letters of Recommendation
  • Transcripts
  • Resume/CV
Specialization Notes

Most Caltech graduate programs are PhD-only. GRE General and Subject tests vary by department; many have made them optional or no longer accept them.