The Hubble Space Telescope Survey of BL Lacertae Objects. II. Host Galaxies

@article{Urry1999TheHS,
  title={The Hubble Space Telescope Survey of BL Lacertae Objects. II. Host Galaxies},
  author={C. Megan Urry and Riccardo Scarpa and Matthew J. O'Dowd and Renato Falomo and Joseph E. Pesce and Aldo Treves},
  journal={The Astrophysical Journal},
  year={1999},
  volume={532},
  pages={816-829}
}
We have used the Hubble Space Telescope (HST ) WFPC2 camera to survey 132 BL Lac objects com- prising seven complete radio-, X-ray¨, and optically selected samples. We obtained useful images for 110 targets spanning the redshift range These represent an unbiased subsample of the original 0 ( z ( 1.3. 132 since they were snapshots selected to —ll random holes in the HST schedule. The exposure times ranged from a few hundred to D1000 s, increasing with redshift. Most images were taken in the… 

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