Abstract
We present the results of an imaging survey aimed at finding and cataloguing various kinds of fine structure in 74 nearby E + S0 galaxies. More than half of the objects feature at least one of the following: ripples (“shells”), strongly boxy isophotes, X-structure, and plumes, thus suggesting a multi-component origin (mergers, accretions) for these galaxies. The presence of fine structure correlates with spectral line strengths measured by Faber et al. (1990): ellipticals with ripples, plumes, etc., tend to have stronger-than-average Hβ lines and weaker-than-average CN and Mg2 indices for their luminosity, suggesting that — compared to their featureless counterparts — they may have experienced more recent star formation.
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References
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© 1990 Springer-Verlag Berlin Heidelberg
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Seitzer, P., Schweizer, F. (1990). A Survey for Fine Structure in E+SO Galaxies. In: Wielen, R. (eds) Dynamics and Interactions of Galaxies. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-75273-5_64
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DOI: https://doi.org/10.1007/978-3-642-75273-5_64
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-75275-9
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