E+A Galaxy Candidates in and around the Virgo Cluster
E+A galaxies are post-starburst galaxies that have recently undergone complete quenching of their star formation, making them a valuable source for studying the evolution of galaxies and their environments. Using the Extended Virgo Cluster Catalog, we manually identified 125 "green" and 24...
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Veröffentlicht in: | Research notes of the AAS 2021-02, Vol.5 (2), p.22 |
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Sprache: | eng |
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Zusammenfassung: | E+A galaxies are post-starburst galaxies that have recently undergone complete quenching of their star formation, making them a valuable source for studying the evolution of galaxies and their environments. Using the Extended Virgo Cluster Catalog, we manually identified 125 "green" and 24 "blue" E+A galaxy candidates within the Virgo Cluster based on their spectral shape, u − r color, lack of H emission, and hydrogen Balmer absorption. Interestingly, we found a higher density of E+A galaxy candidates in the Virgo Cluster than that of most other low-redshift clusters, and several regions of particularly high E+A density within the Virgo Cluster. The large number of E+As in and around the Virgo Cluster hints at the influence of a dense galaxy environment on the formation of E+A galaxies, and the potential value of E+A galaxies as a diagnostic tool to study the evolution of clusters. |
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ISSN: | 2515-5172 2515-5172 |
DOI: | 10.3847/2515-5172/abded7 |