The large, bright QSO survey. V - QSOs in three southern fields
(1991)
Journal Article
Morris, S. L., Weymann, R. J., Anderson, S. F., Hewett, P. C., Francis, P. J., Foltz, C. B., …MacAlpine, G. M. (1991). The large, bright QSO survey. V - QSOs in three southern fields. Astronomical Journal, 102, 1627-1658. https://doi.org/10.1086/115984
The luminosity function and cosmological evolution of X-ray-selected BL Lacertae objects (1991)
Journal Article
Morris, S. L., Stocke, J. T., Gioia, I. M., Schild, R. E., Wolter, A., Maccacaro, T., & della Ceca, R. (1991). The luminosity function and cosmological evolution of X-ray-selected BL Lacertae objects. Astrophysical Journal, 380, 49-65. https://doi.org/10.1086/170561
The large, bright QSO survey. IV - QSOs in two equatorial fields (1991)
Journal Article
Chaffee, F. H., Foltz, C. B., Hewett, P. C., Francis, P. A., Weymann, R. J., Morris, S. L., …MacAlpine, G. M. (1991). The large, bright QSO survey. IV - QSOs in two equatorial fields. Astronomical Journal, 102, 461-487. https://doi.org/10.1086/115886
First results from the Goddard High-Resolution Spectrograph - The Galactic halo and the Ly-alpha forest at low redshift in 3C 273 (1991)
Journal Article
Morris, S. L., Weymann, R. J., Savage, B. D., & Gilliland, R. L. (1991). First results from the Goddard High-Resolution Spectrograph - The Galactic halo and the Ly-alpha forest at low redshift in 3C 273. Astrophysical Journal, 377, L21-L24. https://doi.org/10.1086/186107
The Einstein Observatory Extended Medium-Sensitivity Survey. II - The optical identifications (1991)
Journal Article
Stocke, J. T., Morris, S. L., Gioia, I., Maccacaro, T., Schild, R., Wolter, A., …Henry, J. P. (1991). The Einstein Observatory Extended Medium-Sensitivity Survey. II - The optical identifications. Astrophysical Journal Supplement, 76, 813-874
The properties of X-ray-selected active galactic nuclei. I - Luminosity function, cosmological evolution, and contribution to the diffuse X-ray background (1991)
Journal Article
Maccacaro, T., della Ceca, R., Gioia, I. M., Morris, S. L., Stocke, J. T., & Wolter, A. (1991). The properties of X-ray-selected active galactic nuclei. I - Luminosity function, cosmological evolution, and contribution to the diffuse X-ray background. Astrophysical Journal, 374, 117-133
A high signal-to-noise ratio composite quasar spectrum (1991)
Journal Article
Francis, P. J., Hewett, P. C., Foltz, C. B., Chaffee, F. H., Weymann, R. J., & Morris, S. L. (1991). A high signal-to-noise ratio composite quasar spectrum. Astrophysical Journal, 373, 465-470. https://doi.org/10.1086/170066
Comparisons of the emission-line and continuum properties of broad absorption line and normal quasi-stellar objects (1991)
Journal Article
Weymann, R. J., Morris, S. L., Foltz, C. B., & Hewett, P. C. (1991). Comparisons of the emission-line and continuum properties of broad absorption line and normal quasi-stellar objects. Astrophysical Journal, 373, 23-53. https://doi.org/10.1086/170020
The large, bright QSO survey. III - QSOs in six equatorial fields (1991)
Journal Article
Hewett, P. C., Foltz, C. B., Chaffee, F. H., Francis, P. J., Weymann, R. J., Morris, S. L., …MacAlpine, G. M. (1991). The large, bright QSO survey. III - QSOs in six equatorial fields. Astronomical Journal, 101, 1121-1182. https://doi.org/10.1086/115753
The number count distribution for X-ray-selected BL Lacertae objects and constraints on the luminosity function (1991)
Journal Article
Wolter, A., Gioia, I., Maccacaro, T., Morris, S., & Stocke, J. (1991). The number count distribution for X-ray-selected BL Lacertae objects and constraints on the luminosity function. Astrophysical Journal, 369, 314-319
The appearance of a new redshift system in Markarian 231 (1991)
Journal Article
Boroson, T. A., Meyers, K. A., Morris, S. L., & Persson, S. (1991). The appearance of a new redshift system in Markarian 231. Astrophysical Journal, 370, L19-L21. https://doi.org/10.1086/185967
Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. II - an intensive study of NGC 5548 at optical wavelengths (1991)
Journal Article
Peterson, B., Balonek, T., Barker, E., Bechtold, J., Bertram, R., Bochkarev, N., …Younger, P. (1991). Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. II - an intensive study of NGC 5548 at optical wavelengths. Astrophysical Journal, 368, 119-137. https://doi.org/10.1086/169675