Three Populous Clusters Discovered to be in the LMC Age Gap
| dc.creator | Sarajedini, Ata | |
| dc.date | 1998-04-30 | |
| dc.date.accessioned | 2026-07-07T02:26:43Z | |
| dc.date.available | 2026-07-07T02:26:43Z | |
| dc.description | In the process of searching the Hubble Space Telescope archive, we have serendipitously discovered three populous Large Magellanic Cloud (LMC) clusters with ages that place them in the LMC `age gap.'. These clusters - NGC 2155, SL663, and NGC 2121 - turn out to have [Fe/H] ~ -1.0 and ages of ~4 Gyr. This puts them in the age gap between the intermediate-age LMC clusters, the oldest of which are ~2.5 Gyr old, and ESO121-SC03, which has an age of ~9 Gyr. The addition of these three clusters to the LMC age - metallicity relation has reduced the discrepancy between the age distribution of the LMC clusters and the field stars. Furthermore, it indicates that searches to find more clusters older than ~2.5 Gyr in the LMC are crucial to a better understanding of its global star formation history. | |
| dc.description | 11 pages, 11 figures, Accepted for publication in The Astronomical Journal | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9804340 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9804340 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/12391 | |
| dc.subject | Astrophysics | |
| dc.title | Three Populous Clusters Discovered to be in the LMC Age Gap | |
| dc.type | text |