Bridging Galaxy Evolution Across Cosmic Time With the CLASSY Survey

If you have a question about this talk, please contact Dominic Walton.

Rest-frame far-ultraviolet (FUV) spectra are fundamental to our understanding of star-forming galaxies, providing a unique window on massive stellar populations, chemical evolution, feedback processes, and reionization. The launch of JWST and construction of the ELTs will soon usher in a new era, pushing the FUV spectroscopic frontier to z15-20. The success of these future endeavors hinges on a comprehensive understanding of the massive star populations and interstellar medium (ISM) gas conditions that power the observed FUV spectral features. I will present the COS Legacy Archive Spectroscopic SurveY (CLASSY) Treasury as a powerful and promising solution. CLASSY is a large HST program creating the first high-quality, high-resolution FUV spectral catalog of star-forming galaxies at z0, but which span similar properties as seen at high-z. The spectra contain a suite of emission and absorption lines that characterize the massive stellar populations that populate metal poor galaxies, the physical properties of large-scale outflows that regulate star formation, and the chemical abundance patterns of the gas and stars. CLASSY will improve the diagnostic power of the FUV lines for future JWST /ELT surveys, providing a long-lasting legacy to the astronomical community for decades to come.

This talk is part of the Institute of Astronomy Colloquia series.


May 27 2021


British Summer Time
4:00 pm - 5:00 pm

Local Time

  • Timezone: America/New_York
  • Date: May 27 2021
  • Time: 11:00 am - 12:00 pm

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(KICC) The Kavli Institute for Cosmology at Cambridge University
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