Subject
- markarian galaxies2
- radial velocity2
- redshifted / redshift2
- accretion1
- astronomical object identification1
- atomic physics1
- atomic spectroscopy1
- bl lacertae objects1
- ccd photometry1
- extinction1
- metallicity1
- molecular clouds1
- molecular physics1
- narrow band photometry atomic spectroscopy1
- north galactic pole1
- polarimetry1
- spectral energy distribution1
- spectrophotometry1
- standard stars1
- star forming regions1