110
P. N. Werner, D. M. Worrall and M. Birkinshaw
Â
G., Fouque P., 1991, Third Reference Catalogue of Bright Galaxies.
(at distances of 5 to 200 kpc from the core) according to the lower
limits on jet pressure calculated by Birkinshaw & Worrall (1993);
(iii) a tentative rotation curve perpendicular to the direction of
the jet agrees with that measured by Heckman et al. (1985b), and
(iv) there is no evidence for [O iii], Ha, or [N ii] line emission
at feature A on the jet, where Keel (1988) found optical continuum
emission.
Springer-Verlag, New York
Ferrarese L., Ford H. C., 1999, ApJ, 515, 583
Girardi M., Fadda D., Giuricin G., Mardirossian F., Mezzetti M., Biviano
A., 1996, ApJ, 457, 61
Gregory S. A., Connolly L. P., 1973, ApJ, 182, 351
Heckman T. M., Carty T. J., Bothun G. D., 1985a, ApJ, 288, 122
Heckman T. M., Illingworth G. D., Miley G. K., van Breugel W. J. M.,
1985b, ApJ, 299, 41
Better optical spectra of NGC 6251 are needed to probe deeper
for line emission and to confirm the tentative dynamical results
presented in Section 6. Forthcoming X-ray observations should
measure the temperature of the cluster atmosphere, predicted to be
0.5±2.0 keV, based on our measurements of the cluster velocity
dispersion.
Huchra J., Davis M., Latham D., Tonry J., 1983, ApJS, 52, 89
Huchra J., Geller M., Clemens C., Tokarz S., Michel A., 1995, The CfA
Redshift Catalogue, Version June 1995, Harvard-Smithsonian Center
for Astrophysics
Jones D. L. et al., 1986, ApJ, 305, 684
Keel W. C., 1988, ApJ, 329, 532
Lubin L. M., Bahcall N. A., 1993, ApJ, 415, L17
Miley G. K., Osterbrock D. E., 1979, PASP, 91, 257
Perley R. A., Bridle A. H., Willis A. G., 1984, ApJS, 54, 291
Prestage R. M., Peacock J. A., 1988, MNRAS, 230, 131
Readhead A. C. S., Cohen M. H., Blandford R. D., 1978, Nat, 272, 131
Richter O.-G., Huchtmeier W. K., 1991, A&AS, 87, 425
Shuder J. M., Osterbrock D. E., 1981, ApJ, 250, 55
Strauss M. A., Huchra J. P., Davis M., Yahil A., Fisher K. B., Tonry J.,
1992, ApJS, 83, 29
ACK NOWL E DGM ENT S
Observations reported in this paper were obtained at the Multiple
Mirror Telescope Observatory, a facility operated jointly by the
University of Arizona and the Smithsonian Institution.
The Second Digitized Sky Survey (DSS2) image was obtained
from the ESO/ST-ECF Archive (http://archive.eso.org/dss/dss).
Tonry J., Davis M., 1979, AJ, 84, 1511
Werner P. N., Worrall D. M., Birkinshaw M., 1999, MNRAS, 307, 722
Worrall D. M., Birkinshaw M., 1994, ApJ, 427, 134
Young P. J., Sargent W. L. W., Kristian J., Westphal J. A., 1979, ApJ, 234,
76
REFER ENC ES
Abell G. O., 1958, ApJS, 3, 211
Arnaud M., Evrard A. E., 1999, MNRAS, 305, 631
Bird C. M., Mushotzky R. F., Metzler C. A., 1995, ApJ, 453, 40
Birkinshaw M., Worrall D. M., 1993, ApJ, 412, 568
Danese L., De Zotti G., di Tullio G., 1980, A&A, 82, 322
de Vaucouleurs G., de Vaucouleurs A., Corwin H. G. Jr., Buta R. J., Paturel
Zwicky F. E., 1968, Catalogue of Galaxies and of Clusters of Galaxies,
Vol. VI. California Institute of Technology, Pasadena
A
This paper has been typeset from a T X/LT X file prepared by the author.
E
E
q 2000 RAS, MNRAS 317, 105±110