Environmental effects on the structure of the dwarf spheroidal galaxies
Open Access
- 11 February 1996
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 278 (4) , 947-952
- https://doi.org/10.1093/mnras/278.4.947
Abstract
The central surface brightness [μv(0)] of the dwarf spheroidal satellites of our own Galaxy is found to correlate with their distance from the Galactic Centre (RGC). This observational evidence suggests that environmental effects could strongly influence their structure. This suggestion is further supported by a clear-cut bivariate correlation linking μv(0) to a linear combination of MV, the absolute integrated magnitude, and RGC, which seems to be shared also by the M31 spheroidals. Possible implications for the Fundamental Plane of elliptical galaxies and dark matter (DM) content of dwarf spheroidals are also briefly discussed.Keywords
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