Long-Term Optical Variability of Radio-selected Quasars from the FIRST Survey

@article{Helfand2001LongTermOV,
  title={Long-Term Optical Variability of Radio-selected Quasars from the FIRST Survey},
  author={D. Helfand and R. Stone and B. Willman and R. L. White and R. Becker and T. Price and M. Gregg and R. Mcmahon},
  journal={The Astronomical Journal},
  year={2001},
  volume={121},
  pages={1872-1885}
}
  • D. Helfand, R. Stone, +5 authors R. Mcmahon
  • Published 2001
  • Physics
  • The Astronomical Journal
  • We have obtained single-epoch optical photometry for 202 quasars, taken from the FIRST Bright Quasar Survey, which span a wide range in radio loudness. Comparison with the magnitudes of these objects on the POSS-I plates provides by far the largest sample of long-term variability amplitudes for radio-selected quasars yet produced. We find the quasars to be more variable in the blue than in the red band, consistent with work on optically selected samples. The previously noted trend of decreasing… CONTINUE READING

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