E+A galaxies
| dcterms modified |   |
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| broader |
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| definition | E+A galaxies have strong Balmer absorption lines typical of young stars, but lack optical emission features (e.g. O III 5007) typical of star-forming regions and have metallic absorption lines (e.g. Ca H and K) indicative of an older population of dwarf stars. The presence of two distinct stellar populations and morphological observations suggest that E+A galaxies are the product of a gas-rich galaxy merger. | |||||||||||
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| contributor | AAS_Frey.Katie_Admin original | |||||||||||