Near-UV Merger Signatures in Early-Type Galaxies
| dc.creator | Martin, Jodie R. | |
| dc.creator | O'Connell, Robert W. | |
| dc.creator | Hibbard, J. E. | |
| dc.date | 2007-07-12 | |
| dc.date.accessioned | 2026-07-07T08:16:15Z | |
| dc.date.available | 2026-07-07T08:16:15Z | |
| dc.description | Hierarchical assembly of early-type galaxies (Es and S0s) over an extended period of time will result in mixed-generation stellar populations. Here we look for signatures of composite populations in broad-band, near-ultraviolet (2500-3400 A), high-resolution HST imaging of the cores of 12 bright early-type galaxies without obvious dust or active galactic nuclei. Near-UV imaging is a sensitive probe for the detection of younger components with ages in the range of 10 Myr to 5 Gyr. Only two galaxies have central colors (r < 0.75 r_eff) that are consistent with a single-generation population. The other ten require a composite population. | |
| dc.description | 6 pages, 2 figures. To appear in ``New Quests in Stellar Astrophysics II, Ultraviolet Properties of Evolved Stellar Populations'', Eds M. Chavez, E. Bertone, D. Rosa-Gonzalez and L. H. Rodriguez-Merino, Springer-Verlag | |
| dc.identifier | https://arxiv.org/abs/0707.1793 | |
| dc.identifier | http://arxiv.org/abs/0707.1793 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/133714 | |
| dc.subject | Astrophysics | |
| dc.title | Near-UV Merger Signatures in Early-Type Galaxies | |
| dc.type | text |