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The Velocity Dispersion And Dispersion Profile Of Abell 963

Published online by Cambridge University Press:  25 May 2016

R.J. Lavery  and
J.P. Henry
R.J. Lavery
Affiliation:
Iowa State University, Dept. of Physics and Astronomy, Ames IA 50011
J.P. Henry
Affiliation:
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822

Extract

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Abell 963 (z = 0.206) is still the best candidate for a true arc-counterarc lens configuration (Lavery & Henry 1988). A simple model explains the positions, lengths and patchy light distribution of the two arcs. Photometry indicates the arcs also have the same B-R color (Lavery & Henry 1988; Ellis et al. 1991). However, spectroscopic observations have not confirmed that these arcs originate from the same background galaxy. Ellis et al. (1991) detected a single emission line in the spectrum of the smaller northern arc, identifying it as [O II] λ3727 at a redshift of 0.77. Neither Lavery (1989) or Ellis et al. (1991) detected this emission line in the larger southern arc.

Type
Chapter 5: Galaxy Clusters
Information
Symposium - International Astronomical Union , Volume 173: Astrophysical Applications of Gravitational Lensing , 1996 , pp. 163 - 164
Copyright
Copyright © Kluwer 1996 

References

Ellis, R., Allington-Smith, J., & Smail, I., 1991, MNRAS, 249, 184 Google Scholar
Kovner, I., 1989, ApJ, 337, 621 Google Scholar
Lavery, R.J., 1989, in Gravitational Lenses, ed. Moran, J.M., Hewitt, J.N., & Lo, K.Y. (New York: Springer-Verlag), 134 Google Scholar
Lavery, R.J. & Henry, J.P., 1988, ApJL, 329, L21 Google Scholar