THE QUASI-STELLAR RADIO SOURCES 3C 48 AND 3C 273

@article{Greenstein1964THEQR,
  title={THE QUASI-STELLAR RADIO SOURCES 3C 48 AND 3C 273},
  author={Jesse Leonard Greenstein and Maarten Schmidt},
  journal={The Astrophysical Journal},
  year={1964},
  volume={140},
  pages={1}
}
The spectra of two quasi-stellar radio sources, 3C 48 and 3C 273, have been studied in detail. We present as full conclusions as we can derive from the redshift, luminosity, emission-hne, and continuous spectra. Together with the radio-frequency data and the light variability, these indicate the presence of very large total energies in a relatively small volume of space. We deliberately have not attempted to discuss the origin of these large energies, nor do we discuss the numerous other… 

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