Simulations of nonthermal electron transport in multidimensional flows: synthetic observations of radio galaxies |
| |
| Institution: | 1. School of Physics and Astronomy, University of Minnesota, 116 Church St. S.E., Minneapolis, MN 55455, USA;2. Department of Astronomy and Space Science, Chungnam National University, Daejeon, 305-764, South Korea;3. University of Minnesota Supercomputing Institute, 1200 Washington Avenue S., Minneapolis, MN 55415, USA;4. Department of Mathematics, Yale University, 10 Hillhouse Avenue, P.O. Box 208283, New Haven, CT 06520-8283, USA;1. APEC Climate Center, 12 Centum7-ro, Haeundae-gu, Busan 612-020, South Korea;2. Disaster Management Division, Rural Development Administration, 126 Suin-ro, Gwonseon-gu, Suwon 441-707, South Korea;1. Thompson Institute, University of the Sunshine Coast, QLD, Australia;2. Neuroscience Research Australia (NeuRA) and University of New South Wales, NSW, Australia;1. Department of Mechanical Engineering, S.V. Polytechnic College, Bhopal, M.P., India;2. Department of CSE, MANIT, Bhopal, M.P., India;3. Department of Mechanical Engineering, UIT (RGPV), Bhopal, M.P., India |
| |
| Abstract: | We have applied an effective numerical scheme for cosmic-ray transport to 3D MHD simulations of jet flow in radio galaxies (see the companion paper by Jones et al. herein). The marriage of relativistic particle and 3D magnetic field information allows us to construct a rich set of ‘synthetic observations’ of our simulated objects. The information is sufficient to calculate the ‘true’ synchrotron emissivity at a given frequency using explicit information about the relativistic electrons. This enables us to produce synchrotron surface-brightness maps, including polarization. Inverse-Compton X-ray surface-brightness maps may also be produced. First results intended to explore the connection between jet dynamics and electron transport in radio lobes are discussed. We infer lobe magnetic field values by comparison of synthetically observed X-ray and synchrotron fluxes, and find these ‘inverse-Compton’ fields to be quite consistent with the actual RMS field averaged over the lobe. The simplest minimum energy calculation from the synthetic observations also seems to agree with the actual simulated source properties. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
