Subject
- redshifted / redshift195
- seyfert galaxies180
- line intensities179
- h i line emission178
- globular star clusters168
- quasars165
- galaxy kinematics162
- infrared astronomy158
- radio sources156
- ultraviolet astronomy148
- millimeter astronomy135
- submillimeter astronomy135
- h ii regions118
- interstellar medium116
- ultraviolet photometry110
- radio continuum emission109
- apparent magnitude103
- variable stars101
- ccd photometry96
- astronomical models93
