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Schmidt Telescopes and Quasar Surveys

Published online by Cambridge University Press:  12 April 2016

Paul C. Hewett
Paul C. Hewett*
Affiliation:
Institute of Astronomy, Madingley Road, Cambridge CB3 OHA, UK

Abstract

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Schmidt telescopes have, for some three decades, provided one of the most important sources of data for studies of the quasar population at all wavelengths. In the 1980s the combination of Schmidt telescope plate material and automated scanning machines such as COSMOS and APM allowed a new generation of projects to be undertaken, the results from which are largely responsible for our present understanding of the evolution of the optically–selected quasar population. The digitisation of photographic plates coupled with the computer–based selection of candidate quasars has meant that quantitative calculation of survey selection functions can be accomplished. The first results from surveys with such selection functions are beginning to appear, and progress is being made in constraining the form of the evolution of the quasar luminosity function at high–redshifts, a regime where there has been much disagreement over the nature of evolution. The (still) unique wide–field capability of Schmidt telescopes, coupled with the application of analysis techniques developed using the automated scanning machines, will ensure that Schmidt telescopes continue to make an important contribution to quasar–astronomy over the next ten years.

Type
XII. Cosmology
Information
International Astronomical Union Colloquium , Volume 148: The Future Utilisation of Schmidt Telescopes , 1995 , pp. 458 - 469
Copyright
Copyright © Astronomical Society of the Pacific 1995

References

Andreani, P. & Cristiani, S., 1992, ApJ, 398, L13 CrossRefGoogle Scholar
Boyle, B.J., 1993, In The Evolution of Galaxies and their Environment, 3rd Teton Summer School, Thronson, H. & Shull, J.M., eds, (Kluwer, Dordrecht), p. 433 CrossRefGoogle Scholar
Boyle, B.J., Fong, R., Shanks, T. & Peterson, B.A., 1987, MNRAS, 227, 717 CrossRefGoogle Scholar
Boyle, B.J., Fong, R., Shanks, T. & Peterson, B.A., 1990, MNRAS, 243, 1 Google Scholar
Boyle, B.J., Griffiths, R.E., Shanks, T., Stewart, G.C. & Georgantopoulos, I., 1993, MNRAS, 260, 49 CrossRefGoogle Scholar
Clowes, R.G., Cooke, J.A. & Beard, S.M., 1984, MNRAS, 207,99 CrossRefGoogle Scholar
Demers, S., Kibblewhite, E.J., Irwin, M.J., Nithakorn, D.S., Béland, S., Fontaine, G. & Wesemael, F., 1986, AJ, 92, 878 CrossRefGoogle Scholar
Dunlop, J.S. & Peacock, J.A., 1990, MNRAS, 247, 19 Google Scholar
Engels, D., Groote, D., Hagen, H. -J. & Reimers, D., 1988, In Workshop on Optical Surveys for Quasars, ASP Conf. Ser. 2, Osmer, P.S., Porter, A.C., Green, R.F., & Foltz, C.B., eds, p. 143 Google Scholar
Formiggini, L., Zitelli, V., Bonoli, F. & Braccesi, A., 1980, A&AS, 39, 129 Google Scholar
Goldschmidt, P., Miller, L., La Franca, F. & Cristiani, S., 1992, MNRAS, 256, 65P CrossRefGoogle Scholar
Green, R.F., Schmidt, M. & Leibert, J., 1986, ApJS, 61, 305 CrossRefGoogle Scholar
Gunn, J.E. & Knapp, G.R., 1993 In Sky Surveys: Protostars to Protogalaxies, ASP Conf. Ser. 43, Soifer, B.T., ed., p. 267 Google Scholar
Hartwick, F.D.A. & Schade, D., 1990, ARA&A, 28, 437 Google Scholar
Hawkins, M.R.S. & Véron, P. 1993, MNRAS, 260, 202 CrossRefGoogle Scholar
Hewett, P.C. & Foltz, C.B., 1994, PASP, 106,113 CrossRefGoogle Scholar
Hewitt, D.A. & Burbidge, G., 1993, ApJS, 87, 451 CrossRefGoogle Scholar
Hooke, I.M., 1994, Ph.D. Thesis, University of Cambridge Google Scholar
Kochanek, C.S., 1993, ApJ, 419, 12 CrossRefGoogle Scholar
MacAlpine, G.M., Smith, S.B. & Lewis, D.W., 1977, ApJSGoogle Scholar
McMahon, R.G., 1991, In The Space Distribution of Quasars, ASP Conf. Ser. 21, Crampton, D., ed., p. 129 Google Scholar
Maccacaro, T., Cella, R.D., Gioia, I.M., Morris, S.L., Stocke, J.T. & Wolter, A., 1991, ApJ, 374, 117 CrossRefGoogle Scholar
Marshall, H.L., Avni, Y., Braccesi, A., Huchra, J.P., Tananbaum, H., Zamorani, G. & Zitelli, V., 1984, ApJ, 283, 50 CrossRefGoogle Scholar
Sandage, A., 1965, ApJ, 141, 1560 CrossRefGoogle Scholar
Schmidt, M. & Green, R.F., 1983, ApJ, 269, 352 CrossRefGoogle Scholar
Shanks, T. & Boyle, B.J., 1994 MNRAS, in pressGoogle Scholar
Smith, M.G., 1975, ApJ, 202,591 CrossRefGoogle Scholar
Véron, P., 1994, In Gravitational Lenses in the Universe, Proc. of the 31st Liège International Astrophysical Colloquium Surdej, S., D.Fraipont-Caro, , Gosset, E., Refsdal, S. & Remy, M., eds, (Univ. Liège, Liège), p. 237 Google Scholar
Warren, S.J. & Hewett, P.C., 1992, In Observational Astrophysics, White, R.E., ed., (IOP, Bristol), p. 243 Google Scholar
Warren, S.J., Hewett, P.C. & Osmer, P.S., 1994, ApJ, 421, 412 CrossRefGoogle Scholar
Warren, S.J., Hewett, P.C., Osmer, P.S. & Irwin, M.J., 1991, ApJS, 76, 1 CrossRefGoogle Scholar
Webster, R.L., Hewett, P.C. & Irwin, M.J., 1988, AJ, 95, 19 CrossRefGoogle Scholar
Wisotzki, L., Kohler, T., Kayser, R. & Reimers, D., 1993, A&A, 278, 215 Google Scholar
Wolfe, A.M., 1990, In The Interstellar Medium in Galaxies, Thronson, H.A. & Shull, J.M., eds, (Kluwer, Dordrecht), p. 387 CrossRefGoogle Scholar