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Subject
- redshifted[remove]1,669
- galaxies771
- photometry693
- spectroscopy502
- optical astronomy500
- galaxy clusters388
- surveys381
- quasars351
- active galactic nuclei291
- infrared photometry273
- x-ray sources227
- line intensities175
- catalogs166
- sloan photometry164
- infrared sources140
- radio astronomy139
- wide-band photometry111
- galaxy classification systems100
- radio sources94
- galaxy kinematics89
