Published in "Morphological and Physical Classification of Galaxies", Proceedings of the 5th International Workshop of the Osservatorio Astronomico di Capodimonte, held in Sant'Agata Sui Due Golfi, Italy, September 3-7, 1990, Dordrecht: Kluwer Academic Publishers, 1992, edited by G. Longo, M. Capaccioli, and G. Busarello. Astrophysics and Space Science Library, Vol. 178, p.1

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MORPHOLOGY OF GALAXIES: AN OVERVIEW

R. Buta


Department of Physics and Astronomy
University of Alabama, USA


Abstract. Morphological classification has been and still is a very useful tool in modern extragalactic astronomy. In this overview, I discuss galaxy morphology with regard to the techniques and problems of classification, as well as recent advances in the field.


Table of Contents

INTRODUCTION

MORPHOLOGY: CLUES TO FORMATION AND EVOLUTION

MORPHOLOGICAL CLASSIFICATION: THEORY

MORPHOLOGICAL CLASSIFICATION: IN PRACTICE

SYSTEMS OF CLASSIFICATION

MORPHOLOGICAL CLASSIFICATION: RECENT APPLICATIONS

RECENT ADVANCES IN MORPHOLOGY AND NEW CLASSES OF GALAXIES
Early-type galaxies
Spiral arm character, multiplicity, and disk resonances
Amorphous galaxies
Dwarf and low surface brightness galaxies
Ringed and lensed galaxies
Morphology of bars
"Boxy" or "peanut" bulges and "x" galaxies
Ring, polar ring, and "hoag-type" ring galaxies

CONCLUSIONS

REFERENCES

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