Jets in the Fanaroff–Riley class I radio galaxies PKS B1234−723, MRC 1452−517 and PKS B2148−555
Ben D. Lloyd
1 University of Western Sydney, Locked Bag 1797, Penrith South DC, NSW 1797, Australia
Search for more papers by this authorCorresponding Author
Paul A. Jones
1 University of Western Sydney, Locked Bag 1797, Penrith South DC, NSW 1797, Australia
2 Australia Telescope National Facility, PO Box 76, Epping, NSW 2121, Australia
[email protected]Search for more papers by this authorBen D. Lloyd
1 University of Western Sydney, Locked Bag 1797, Penrith South DC, NSW 1797, Australia
Search for more papers by this authorCorresponding Author
Paul A. Jones
1 University of Western Sydney, Locked Bag 1797, Penrith South DC, NSW 1797, Australia
2 Australia Telescope National Facility, PO Box 76, Epping, NSW 2121, Australia
[email protected]Search for more papers by this authorAbstract
We present radio observations made with the Australia Telescope Compact Array to study the jets and lobes of three Fanaroff–Riley class I (FR I) radio galaxies: PKS B1234−723, 1452−517 and B2148−555. The total intensity and polarization radio images of the FR I jets are used to determine jet brightness and width variations, magnetic field structure and fractional polarization. The equipartition pressure is determined as a function of distance from the galaxies to probe the intergalactic medium.
Acknowledgments
- 1 Abell G. O., Corwin H. G., Olowin R. P., 1989, ApJS, 70, 1
- 2 Baum S. A. et al., 1997, ApJ, 483, 178
- 3 Bicknell G. V., 1984, ApJ, 286, 68
- 4 Bicknell G. V., 1986a, ApJ, 300, 591
- 5 Bicknell G. V., 1986b, ApJ, 305, 109
- 6 Bicknell G. V., 1994a, in G. V. Bicknell, M. A. Dopita, P. J. Quinn, eds, ASP Conf. Ser. Vol. 54, The First Stromlo Symposium: The Physics of Active Galaxies. Astron. Soc. Pac., San Francisco, p. 357
- 7 Bicknell G. V., 1994b, ApJ, 422, 542
- 8 Bicknell G. V., 1995, ApJS, 101, 29
- 9 Bicknell G. V., 1996, in P. E. Hardee, A. H. Bridle, J. A. Zensus, eds, ASP Conf. Ser. Vol. 100, Energy Transport in Radio Galaxies and Quasars. Astron. Soc. Pac., San Francisco, p. 253
- 10 Bicknell G. V., De Ruiter H. R., Parma P., Morganti R., Fanti R., 1990, ApJ, 354, 98
- 11 Bowman M., Leahy J. P., Komissarov S. S., 1996, MNRAS, 279, 899
- 12 Bridle A. H., 1986, Can. J. Phys., 64, 353
- 13 Bridle A. H., Perley R. A., 1984, ARA&A, 22, 319
- 14 Bridle A. H., Baum S. A., Fomalont E. B., Parma P., Fanti R., Ekers R. D., 1991, A&A, 245, 371
- 15 Fanaroff B. L., Riley J. M., 1974, MNRAS, 167, 31 p
- 16 Fanti R., Lari C., Parma P., Bridle A. H., Ekers R. D., Fomalont E. B., 1982, A&A, 110, 169
- 17 Fanti C., Fanti R., De Ruiter H. R., Parma P., 1986, A&AS, 65, 145
- 18 Ferrari A., 1998, ARA&A, 36, 539
- 19 Jones P. A., 1986, Proc. Astron. Soc. Aust., 6, 329
- 20 Jones P. A., 1990, Proc. Astron. Soc. Aust., 8, 254
- 21 Jones P. A., McAdam W. B., 1992, ApJS, 80, 137
- 22 Jones P. A., McAdam W. B., Reynolds J. E., 1994, MNRAS, 268, 602
- 23 Jones P. A., Lloyd B. D., McAdam W. B., 2001, MNRAS, 325, 817
- 24 Killeen N. E. B., Bicknell G. V., 1988, ApJ, 324, 198
- 25 Killeen N. E. B., Bicknell G. V., Ekers R. D., 1986, ApJ, 302, 306
- 26 Komissarov S. S., 1994, MNRAS, 269, 394
- 27 Laing R. A., Parma P., De Ruiter H. R., Fanti R., 1999, MNRAS, 306, 513
- 28 Large M. I., Mills B. Y., Little A. G., Crawford D. F., Sutton J. M., 1981, MNRAS, 194, 693
- 29 Large M. I., Cram L. E., Burgess A. M., 1991, Observatory, 111, 72
- 30 Lloyd B. D., 1996, in P. E. Hardee, A. H. Bridle, J. A. Zensus, eds, ASP Conf. Ser. Vol. 100, Energy Transport in Radio Galaxies and Quasars. Astron. Soc. Pac., San Francisco, p. 227
- 31 Lloyd B. D., 1997, PhD thesis, Univ. Western Sydney
- 32 Lloyd B. D., Jones P. A., Haynes R. F., 1996, MNRAS, 279, 1197
- 33 McAdam W. B., 1991, Proc. Astron. Soc. Aust., 9, 255
- 34 Norris R. P., Kesteven M. J., Wellington K. J., Batty M. J., 1988, ApJS, 67, 85
- 35 Otrupcek R. E., Wright A. E., 1991, Proc. Astron. Soc. Aust., 9, 170
- 36 Owen F. N., Ledlow M. J., 1994, in G. V. Bicknell, M. A. Dopita, P. J. Quinn, eds, ASP Conf. Ser. Vol. 54, The First Stromlo Symposium: The Physics of Active Galaxies. Astron. Soc. Pac., San Francisco, p. 319
- 37 Pacholczyk A. G., 1970, Radio Astrophysics. Freeman, San Francisco
- 38 Parma P., De Ruiter H. R., Fanti C., Fanti R., Morganti R., 1987, A&A, 181, 244
- 39 Parma P., De Ruiter H. R., Fanti R., Laing R., 1994, in G. V. Bicknell, M. A. Dopita, P. J. Quinn, eds, ASP Conf. Ser. Vol. 54, The First Stromlo Symposium: The Physics of Active Galaxies. Astron. Soc. Pac., San Francisco, p. 241
- 40 Schilizzi R. T., McAdam W. B., 1975, Mem. R. Astron. Soc., 79, 1
- 41 Tashiro M. et al., 1998, ApJ, 499, 713
- 42 Tritton K. P., Schilizzi R. T., 1973, MNRAS, 165, 245
- 43 Urry C. M., Padovani P., 1995, PASP, 107, 803
- 44 Wall J. V., Schilizzi R. T., 1979, MNRAS, 189, 593
- 45 Wright A. E., Griffith M. R., Burke B. F., Ekers R. D., 1994, ApJS, 91, 111
We thank the referee, R. Laing, for his helpful comments. We thank ATNF for assistance and the use of their facilities. The Australia Telescope is funded by the Commonwealth of Australia for operation as a National Facility managed by CSIRO. BDL acknowledges support from a Nepean Postgraduate Research Award. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.
Acknowledgments
This paper has been typeset from a tex/latex file prepared by the author.