Browsing by Author "Stawarz, L."

Now showing items 1-6 of 6

    • Chandra Reveals Twin X-ray Jets in the Powerful FR-II Radio Galaxy 3C 353 

      Kataoka, J.; Stawarz, L.; Harris, D.E.; Siemiginowska, A.; Ostrowski, M.; Swain, M.R.; Hardcastle, M.J.; Goodger, Joanna; Iwasawa, K.; Edwards, P.G. (2008)

    • Deep Chandra observations of Pictor A 

      Hardcastle, M. J.; Lenc, E.; Birkinshaw, M.; Croston, J. H.; Goodger, J. L.; Marshall, H. L.; Perlman, E. S.; Siemiginowska, A.; Stawarz, L.; Worrall, D. M. (2016-02-01)
      We report on deep Chandra observations of the nearby broad-line radio galaxy Pictor A, which we combine with new Australia Telescope Compact Array (ATCA) observations. The new X-ray data have a factor 4 more exposure than ...

    • A flare in the jet of Pictor A 

      Marshall, H.L.; Hardcastle, M.J.; Birkinshaw, M.; Croston, J.H.; Evans, D.; Landt, H.; Lenc, E.; Massaro, F.; Perlman, E.; Schwartz, D.A.; Siemiginowska, A.; Stawarz, L.; Urry, C.M.; Worrall, D.M. (2010)
      A Chandra X-ray imaging observation of the jet in Pictor A showed a feature that appears to be a flare that faded between 2000 and 2002. The feature was not detected in a follow-up observation in 2009. The jet itself is ...

    • Giant lobes of Centaurus A radio galaxy observed with the Suzaku X-ray satellite 

      Stawarz, L.; Tanaka, Y. T.; Madejski, G.; O'Sullivan, S. P.; Cheung, C. C.; Feain, I.J.; Fukazawa, Y.; Gandhi, P.; Hardcastle, M.J.; Kataoka, J.; Ostrowski, M.; Reville, B.; Siemiginowska, A.; Simionescu, A.; Takahashi, T.; Takei, Y.; Takeuchi, Y.; Werner, N. (2013-03-20)
      We report on Suzaku observations of selected regions within the southern giant lobe of the radio galaxy Centaurus A. In our analysis we focus on distinct X-ray features detected with the X-ray Imaging Spectrometer within ...

    • High-energy Particle Acceleration and Production of Ultra-high-energy Cosmic Rays in the Giant Lobes of Centaurus A 

      Hardcastle, M.J.; Cheung, C.C.; Feain, I.J.; Stawarz, L. (2009)
      The nearby radio galaxy Centaurus A is poorly studied at high frequencies with conventional radio telescopes because of its very large angular size, but is one of a very few extragalactic objects to be detected and resolved ...

    • Modeling x-ray emission of a straight jet : PKS 0920-397 

      Schwartz, D.A.; Massaro, F.; Siemiginowska, A.; Worrall, D.M.; Birkinshaw, M.; Marshall, H.L.; Evans, D.; Perlman, E.; Gelbord, J.M.; Lovell, J.E.J.; Godfrey, L.; Bicknell, G.; Ojha, R.; Hardcastle, M.J.; Jester, S.; Jorstad, S.G.; Stawarz, L. (2010)
      We summarize a study of PKS 0920-397 using our 42 ks Chandra observation in conjunction with our ATCA 20GHz image, and HST/ACS F814W and F475W images. We investigate the hypothesis that the jet X–ray emission is due to ...