Keywords
H II Regions: Red Supergiants
H II Regions: Spectra
H II Regions: Spectra
How to Cite
The first direct detection of red supergiants in a giant H II region. (1990). Revista Mexicana De Astronomía Y Astrofísica, 21(1), 192. https://astronomia.unam.mx/journals/rmxaa/article/view/1990rmxaa..21..192t
Abstract
The authors have obtained long slit spectrophotometry across NGC 3310, a luminous galaxy with circumnuclear bursts of star formation, covering the spectral range from λ 3650 to 9700 Å. In one of its giant star forming regions, the near IR Ca II absorption lines (a signature of young supergiants) was detected with a strength similar to that of the nuclear region. This is the first detection of the IR Ca II triplet in an extragalactic giant H II region and confirms theoretical predictions that, after some 4 million years, red supergiants should appear in bursts of star formation.Similar Articles
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