Subject
- radial velocity2
- radio continuum emission2
- spectroscopy2
- stellar associations2
- surveys2
- variable stars2
- x-ray sources2
- astrometry1
- co line emission1
- early-type stars1
- effective temperature1
- galaxies1
- gravitational lensing1
- h i line emission1
- infrared sources1
- late-type stars1
- optical astronomy1
- polarimetry1
- radio sources1
- radio spectroscopy1
