Rotation and surface brightness in elliptical galaxies

Details Rotation and surface brightness in elliptical galaxies Rotation and surface brightness in elliptical galaxies

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...286...88w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 286, Nov. 1, 1984, p. 88-96. NASA-supported research.

Astronomy and Astrophysics

Astrophysics

13

Astronomical Photometry, Brightness, Elliptical Galaxies, Galactic Rotation, Surface Properties, Energy Dissipation, Galactic Evolution, Galactic Structure

Scientific paper

Correlations between the mean surface brightness and level of rotational support are presented and discussed for the sample of elliptical galaxies presented by Davies et al. (1983). The importance of these distance-independent correlations lies in the ability to isolate the effects of projection, and hence to define an intrinsic, edge-on correlation. Thus the position of an elliptical galaxy in this plane contains information about its true shape. In addition, the slope of the 'edge-on' correlation can be compared cleanly with theoretical predictions. The correlation is interpreted as a manifestation of varying amounts of dissipation during the formation epoch of a galaxy, with higher surface brightness, rotating ellipticals having dissipated more binding energy.

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