Browse > Article
http://dx.doi.org/10.5303/JKAS.2004.37.5.605

3D SIMULATIONS OF RADIO GALAXY EVOLUTION IN CLUSTER MEDIA  

O'NEILL SEAN M. (Department of Astronomy, University of Minnesota)
SHEARER PAUL (Department of Astronomy, University of Minnesota)
TREGILLIS IAN L. (Applied Physics Division, MS B259, Los Alamos National Laboratory)
JONES THOMAS W. (Department of Astronomy, University of Minnesota)
RYU DONGSU (Department of Astronomy & Space Science, Chungnam National University)
Publication Information
Journal of The Korean Astronomical Society / v.37, no.5, 2004 , pp. 605-609 More about this Journal
Abstract
We present a set of high-resolution 3D MHD simulations exploring the evolution of light, supersonic jets in cluster environments. We model sets of high- and low-Mach jets entering both uniform surroundings and King-type atmospheres and propagating distances more than 100 times the initial jet radius. Through complimentary analyses of synthetic observations and energy flow, we explore the detailed interactions between these jets and their environments. We find that jet cocoon morphology is strongly influenced by the structure of the ambient medium. Jets moving into uniform atmospheres have more pronounced backflow than their non-uniform counterparts, and this difference is clearly reflected by morphological differences in the synthetic observations. Additionally, synthetic observations illustrate differences in the appearances of terminal hotspots and the x-ray and radio correlations between the high- and low-Mach runs. Exploration of energy flow in these systems illustrates the general conversion of kinetic to thermal and magnetic energy in all of our simulations. Specifically, we examine conversion of energy type and the spatial transport of energy to the ambient medium. Determination of the evolution of the energy distribution in these objects will enhance our understanding of the role of AGN feedback in cluster environments.
Keywords
galaxies: jets; methods: numerical; MHD; radiation mechanisms: nonthermal;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Tregillis, I. L., Jones, T. W., & Ryu, D. 2001, ApJ, 557, 475   DOI   ScienceOn
2 Tregillis, I. L., Jones, T. W., & Ryu, D. 2002a, in ASP Conf. Ser. 250, Particles and Fields in Radio Galaxies, ed. R. A. Laing & K. M. Blundell (San Francisco: ASP), 336
3 Tregillis, I. L. 2002b, PhD thesis, Univ. Minnesota
4 Tregillis, I. L., Jones, T. W., & Ryu, D. 2004, ApJ, 601, 778
5 Ryu, D., Miniati, F., Jones, T. W., & Frank, A. 1998, ApJ, 509, 244   DOI   ScienceOn
6 Blanton, E. L., Sarazin, C. L., & McNamara, B. R. 2003, ApJ, 585, 227   DOI   ScienceOn
7 Harten, A. 1983, J: Comput. Phys., 49, 357   DOI   ScienceOn
8 Bohringer H., Matsushita, K., Churazov, E., Ikebe, Y., & Chen, Y. 2002, A&A, 382, 804   DOI   ScienceOn
9 Churazov, E., Sunyaev, R., Forman, W., & Bohringer, H. 2002, MNRAS, 332, 729   DOI   ScienceOn
10 Dai, W., & Woodward P. R. 1998, ApJ, 494, 317   DOI   ScienceOn
11 Jones, T. W., Ryu, D., & Engel, A. 1999, ApJ, 512, 105   DOI   ScienceOn
12 King, I. 1962, AJ, 67, 8
13 Ryu, D., & Jones, T. W. 1995, ApJ, 442, 228   DOI
14 Ryu, D., Jones, T. W., & Frank, A. 1995, ApJ, 452, 785   DOI