Subject
- magellanic clouds2
- magnetic fields2
- proper motions2
- radio spectroscopy2
- ultraviolet astronomy2
- wide-band photometry2
- accretion1
- agn1
- astronomical models1
- astronomical reference materials1
- black holes1
- correlation1
- galaxy clusters1
- galaxy kinematics1
- h alpha photometry1
- h ii regions1
- markarian galaxies1
- milky way galaxy1
- optical observation1
- planetary nebulae1