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| Paper: |
GALEX UV-derived Star Formation History of Elliptical Galaxies |
| Volume: |
374, From Stars to Galaxies: Building the Pieces to Build Up the Universe |
| Page: |
463 |
| Authors: |
Yi, S.K.; Kaviraj, S.; Schawinski, K.; Khochfar, S.; the GALEX Team |
| Abstract: |
The recent GALEX ultraviolet data have revealed that giant elliptical galaxies are still forming stars. Up to half of the nearby bright ellipticals have been found to show an unexpectedly-strong UV flux, which is most naturally explained by a minor level of residual star formation. This is consistent with the prediction from hierarchical merger models with a strong feedback. The residual star formation is more often found among the galaxies with a lower velocity dispersion and with a lower local density. Much of the content of this article has already been published previously by our group during 2005–2006 as cited in the text. |
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