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Subject
- galaxies11
- stars10
- galaxy-formation7
- galaxy-masses7
- galaxy-photometry7
- h-alpha-photometry7
- h-beta-photometry7
- infrared-photometry7
- interstellar-line-emission7
- theoretical-models7
- spectroscopy6
- absolute-magnitude5
- galaxy-ages4
- redshift-surveys4
- active-galactic-nuclei2
- galaxy-luminosities2
- objective prism2
- active-galaxies1
- history-of-astronomy1
- radio continuum: general, techniques: image processing1