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ACTIVE GALACTIC NUCLEUS INTERACTION WITH THE HOT GAS ENVIRONMENT: UNDERSTANDING FROM THE RADIO AND X-RAY DATA

  • LAL, DHARAM V. (National Centre for Radio Astrophysics (TIFR), Pune University Campus)
  • Received : 2014.11.30
  • Accepted : 2015.06.30
  • Published : 2015.09.30
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Abstract

Recognition of the role of radio galaxies in the universe has been increasing in recent years. Their colossal energy output over huge volumes is now widely believed to play a key role not only in the formation of galaxies and their supermassive black holes, but also in the evolution of clusters of galaxies and, possibly, the cosmic web itself. In this regard, we need to understand the inflation of radio bubbles in the hot gas atmospheres of clusters and the importance of the role that radio galaxies play in the overall energy budget of the intracluster medium. Here, we present results from X-ray and radio band observations of the hot gas atmospheres of powerful, nearby radio galaxies in poor clusters.

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References

  1. Birkinshaw, M., Laing, R. A., & Peacock, J. A., 1981, Radio Synthesis Observations of 3C 296, 3C 442A and 3C 449 at 0.4, 1.4 and 2.7 GHz, MNRAS, 197, 253 https://doi.org/10.1093/mnras/197.2.253
  2. Blandford, R. D. & Znajek, R. L., 1977, Electromagnetic Extraction of Energy from Kerr Black Holes, MNRAS, 179, 433 https://doi.org/10.1093/mnras/179.3.433
  3. Croston, J. H., Hardcastle, M. J., & Harris, D. E., et al., 2005, An X-Ray Study of Magnetic Field Strengths and Particle Content in the Lobes of FR II Radio Sources, ApJ, 626, 733 https://doi.org/10.1086/430170
  4. Fanaroff, B. L. & Riley, J. M., 1974, The Morphology of Extragalactic Radio Sources of High and Low Luminosity, MNRAS, 167, P31 https://doi.org/10.1093/mnras/167.1.31P
  5. Feigelson E. D., Laurent-Muehleisen, S. A., Kollgaard, R. I., & Fomalont, E. B., 1995, Discovery of Inverse-Compton X-Rays in Radio Lobes, ApJ, 449, L149
  6. Garofalo, D., Evans, D. A., & Sambruna, R. M., 2010, The Evolution of Radio-Loud Active Galactic Nuclei as a Function of Black Hole Spin, MNRAS, 406, 975
  7. Hardcastle M. J., Birkinshaw M., Cameron R., Harris D. E., Looney L.W., & Worrall D. M., 2002a, Magnetic Field strengths in the Hotspots and Lobes of Three Powerful FRII Radio Sources, ApJ, 581, 948 https://doi.org/10.1086/344409
  8. Hardcastle M. J., Worrall, D. M., Birkinshaw M., Laing, R. A., & Bridle, A. H., 2002b, A Chandra Observation of the X-ray Environment and Jet of 3C 31, MNRAS, 334, 182 https://doi.org/10.1046/j.1365-8711.2002.05513.x
  9. Hardcastle, M. J., 2005, Jets, Hotspots and Lobes: What X-ray Observations Tell us about Extragalactic Radio Sources, Phil. Trans. R. S. A, 363, 2711 https://doi.org/10.1098/rsta.2005.1667
  10. Hardcastle, M. J. Kraft, R. P., & Sivakoff, G. R., et al., 2007, New Results on Particle Acceleration in the Centaurus A Jet and Counterjet from a Deep Chandra Observation, ApJ, 670, L81 https://doi.org/10.1086/524197
  11. Katz-Stone, D. M & Rudnick, L., 1997, An Analysis of the Synchrotron Spectrum in the Fanaroff-Riley Type I Galaxy 3C 449, ApJ, 488, 146 https://doi.org/10.1086/304661
  12. Lal, D.V., Kraft, R. P., & Randall, S. W., et al., 2013, Gas Sloshing and Radio Galaxy Dynamics in the Core of the 3C 449 Group, ApJ, 764, 83 https://doi.org/10.1088/0004-637X/764/1/83
  13. Lanz, L., Bliss, A., Kraft, R. P., Birkinshaw, M., & Lal, D. V., et al., 2011, The Infrared Jet in 3C 31, ApJ, 731, L52 https://doi.org/10.1088/0004-637X/731/1/52
  14. Loken, C., Roettiger, K., Burns, J. O., & Norman, M., 1995, Radio Jet Propagation and Wide-Angle Tailed Radio Sources in Merging Galaxy Cluster Environments, ApJ, 445, 80 https://doi.org/10.1086/175674
  15. Miley, G. K., Perola, G. C., van der Kruit, P. C., & van der Laan, H., 1972, Active Galaxies with Radio Trails in Clusters, Nature, 237, 269 https://doi.org/10.1038/237269a0
  16. Perlman, E. S. & Wilson, A. S., 2005, The X-Ray Emissions from the M87 Jet: Diagnostics and Physical Interpretation, ApJ, 627, 140 https://doi.org/10.1086/430340
  17. Peterson, B. M., 1997, An Introduction to Active Galactic Nuclei, Cambridge: Cambridge University Press
  18. Wilkes, B. J., Lal, D. V., & Worrall, D. M., et al., 2012, Chandra X-Ray Observations of the Redshift 1.53 Radioloud Quasar 3C 270.1, ApJ, 745, 84 https://doi.org/10.1088/0004-637X/745/1/84
  19. Wilson, A. S, Young, A. J., & Shopbell, P. L., 2000, Chandra Observations of Cygnus A: Magnetic Field Strengths in the Hot Spots of a Radio Galaxy, ApJ, 544, L27 https://doi.org/10.1086/317293