The HST Quasar Absorption-Line Key Project. 8: CCD imaging of Hubble Space Telescope quasar fields
Sofia Kirhakos, W. L. W. Sargent, Donald P. Schneider, John N. Bahcall, Buell T. Jannuzi, Dan Maoz, Todd A. Small
Abstract
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Sofia Kirhakos, W. L. W. Sargent, Donald P. Schneider, John N. Bahcall, Buell T. Jannuzi, Dan Maoz, Todd A. Small
Abstract
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We present an analysis of CCD images of more than 100 quasars; many of the objects have been or will be observed in the HST Key Project Quasar Absorption Line Survey. The data set consists of B, g, and i photometry of 117 quasars and deeper g (limiting magnitude of ~22) images of 101 quasar fields. Positions accurate to ~1", measured with the Space Telescope Science Institute's Astrometric Support Program, are listed for all of the quasars in this study. Positions, magnitudes, and classifications of stars and galaxies located within ~100" of the quasars are given for all of the dep g data. The positions of the stars and galaxies relative to the quasar are accurate to ~0.5". The results presented here can be used to prepare spectroscopic programs designed to obtain redshifts of galaxies in the fields of these quasars.
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We present an analysis of CCD images of more than 100 quasars; many of the objects have been or will be observed in the HST Key Project Quasar Absorption Line Survey. The data set consists of B, g, and i photometry of 117 quasars and deeper g (limiting magnitude of ~22) images of 101 quasar fields. Positions accurate to ~1", measured with the Space Telescope Science Institute's Astrometric Support Program, are listed for all of the quasars in this study. Positions, magnitudes, and classifications of stars and galaxies located within ~100" of the quasars are given for all of the dep g data. The positions of the stars and galaxies relative to the quasar are accurate to ~0.5". The results presented here can be used to prepare spectroscopic programs designed to obtain redshifts of galaxies in the fields of these quasars.
Key concepts: Quasar, Hubble space telescope, Physics, Astronomy, Astrophysics, Hubble Deep Field, Telescope, OVV quasar