| |
 |
| Paper: |
Stellar Populations Gradients in Isolated Dwarf Galaxies |
| Volume: |
458, Galactic Archaeology: Near-Field Cosmology and the Formation of the Milky Way |
| Page: |
287 |
| Authors: |
Hidalgo, S. L.; the LCID group |
| Abstract: |
We present the star formation history (SFH) as a function of galactocentric radius for a sample of isolated dwarf galaxies from the Local Cosmology from the Isolated Dwarfs (LCID) project. The results show a decrease of the star formation with radius for stars with ages ≤ 9 Gyr. Star formation for ages ≥ 10 Gyr is present regardless of distance to the center. The maximum metallicity of Cetus and Tucana is reached earlier than in LGS-3 and Phoenix although this effect tends to disappear at larger distances from the center. The age-metallicity realtion of LGS-3 and Phoenix is more flat at old ages, increasing at younger ages. The results suggest that, regardless the morphological type, the properties of theses galaxies tend to be the same at larger distances from the center. |
|
|
|
|
|
