
TY  - JOUR
A1  - Da Costa, G. S. 
T1  - The Stellar Populations of dE Galaxies in Nearby Groups
JF  - Publications of the Astronomical Society of Australia
JO  - Publ. Astron. Soc.  Aust.
Y1  - 2004
VL  - 21
IS  - 4
SP  - 366
EP  - 370
KW  - galaxies: dwarf &#8212; galaxies: evolution &#8212; galaxies: stellar content &#8212; stars: Population II
UR  - https://doi.org/10.1071/AS04044 
N2  - In this contribution Gemini-North NIRI J,K-observations are used to investigate the upper-Asymptotic Giant Branch (AGB) intermediate-age population in the M81 Group dwarf elliptical (dE) F8D1. Hubble Space Telescope (HST) &#8216;snapshot&#8217; V,I-observations are also analysed to investigate the upper-AGB populations in two other M81 Group dEs, DDO 71 and kk077. In all three dEs, significant intermediate-age populations are found. Further, there are sizeable dE-to-dE differences in these populations: F8D1 contains relatively more, and relatively more luminous, upper-AGB stars. These results are compared with existing information for Local Group and Sculptor group dwarfs. It is suggested that &#8216;environmental harrassment&#8217; plays an important role in governing dwarf galaxy evolution. 
ER  -

