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Massive Stars in Low-metallicity Galaxies in the CLASSY Survey.

Authors :
Berg, Danielle A.
James, Beth L.
King, Teagan
McDonald, Meaghan
Chen, Zuyi
Chisholm, John
Heckman, Timothy
Martin, Crystal L.
Stark, Dan P.
Source :
Proceedings of the International Astronomical Union; May2022, Vol. 18 Issue S361, p26-35, 10p
Publication Year :
2022

Abstract

Rest-frame far-ultraviolet spectra are fundamental to our understanding of star-forming galaxies, providing a unique window on massive star populations (MSs), chemical evolution, feedback processes, and reionization. JWST is ushering in a new era, pushing the FUV frontier beyond z=10. The success of such endeavors hinges on a comprehensive understanding of the MSs and gas conditions that power the observed spectra. The COS Legacy Archive Spectroscopic SurveY (CLASSY) is a powerful and promising solution providing high-quality, high-resolution FUV spectra of 45 nearby star-forming galaxies. The spectra contain a suite of features that simultaneously characterize the MSs that populate metal-poor galaxies, physical properties of large-scale outflows, and chemical abundance patterns. The CLASSY sample is consistent with the z 0 mass-metallicity relationship and spans 1.5 dex in metallicity. These unique properties make CLASSY the benchmark training set for studies of MSs in star-forming galaxies both across cosmic time and connecting metal-poor to metal-rich populations. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
17439213
Volume :
18
Issue :
S361
Database :
Complementary Index
Journal :
Proceedings of the International Astronomical Union
Publication Type :
Academic Journal
Accession number :
179496162
Full Text :
https://doi.org/10.1017/S1743921323001771