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Subject
- absolute magnitude2
- accretion1
- active galactic nuclei13
- apparent magnitude2
- astronomical models1
- astrophysical masers1
- black holes[remove]29
- chemical abundances1
- galaxies12
- galaxy clusters1
- galaxy kinematics5
- gamma-ray astronomy1
- infrared astronomy2
- infrared photometry4
- infrared sources1
- interferometry1
- line intensities2
- magnetic fields1
- neutron stars1
- optical astronomy14
