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Article Contents

ABSTRACT

1.INTRODUCTION

2.OVERVIEW

3.GALAXY CLASSIFICATION

4.A CONTINUUM OF GALACTIC FORMS

5.GALAXY TYPES: STAGE, FAMILY, AND VARIETY
5.1.Elliptical and Spheroidal Galaxies
5.2.S0 and Spiral Galaxies
5.3.Irregular Galaxies

6.OTHER DIMENSIONS TO GALAXY MORPHOLOGY
6.1.Outer Rings and Pseudorings
6.2.Inner and Outer Lenses
6.3.Nuclear Rings and Bars
6.4.Spiral Arm Morphologies
6.5.Luminosity Effects

7.THE MORPHOLOGY OF GALACTIC BARS AND OVALS

8.DUST MORPHOLOGIES

9.THE MORPHOLOGIES OF GALACTIC BULGES

10.EFFECTS OF INTERACTIONS AND MERGERS
10.1.Normal versus Catastrophic Rings
10.2.Environmental Effects on Star-Forming Disks
10.3.Interacting and Peculiar Galaxies
10.3.1.Tidal Tails, Arms, and Bridges
10.3.2.Dust-Lane Ellipticals
10.3.3.Shell/Ripple Galaxies
10.3.4.Ultra-Luminous Infrared Galaxies
10.4.Warps
10.5.The Morphology of Active Galaxies
10.6.The Morphology of Brightest Cluster Members

11.STAR FORMATION MORPHOLOGIES
11.1.H{alpha} Imaging
11.2.Ultraviolet Imaging
11.3.Atomic and Molecular Gas Morphology

12.INFRARED OBSERVATIONS: GALACTIC STELLAR MASS MORPHOLOGY

13.INTERMEDIATE AND HIGH REDSHIFT GALAXY MORPHOLOGY

14.GIANT LOW SURFACE BRIGHTNESS GALAXIES

15.GALAXY MORPHOLOGY IN COLOR
15.1.Normal Galaxies
15.2.Dwarf Galaxies
15.2.1.dE, dS0, BCD, and cE Galaxies
15.2.2.Local Group Dwarf Spheroidals and Irregulars
15.2.3.Dwarf Spirals
15.3.Galaxy Zoo Project
15.4.Isolated Galaxies
15.5.Deep Field Color Imaging

16.LARGE-SCALE AUTOMATED GALAXY CLASSIFICATION

17.THE STATUS AND FUTURE OF MORPHOLOGICAL STUDIES

REFERENCES