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Browsing by Author "Konar, C."
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The Dynamics of Radio Galaxies and Double-Double Radio Galaxies
Konar, C.; Jamrozy, M.; Hardcastle, M.J.; Croston, J.H.; Nandi, S.; Saikia, D. J.; Machalski, J. (2011-12)Relativistic and magnetized plasma ejected by radio loud AGNs through jets form the diffuse lobes of radio galaxies. The radiating particles (electron/electron-positron) in lobes emit in radio via the synchrotron process ... -
The dynamics of the giant radio galaxy 3C 457
Konar, C.; Hardcastle, M.J.; Croston, J.H.; Saikia, D.J. (2009)We present multifrequency radio observations with the Giant Metrewave Radio Telescope and Very Large Array, and X-ray observations with the X-ray Multi-Mirror Mission (XMM–Newton) telescope of the giant radio source (GRS) ... -
Episodic radio galaxies J0116-4722 and J1158+2621 : Can we constrain the quiescent phase of nuclear activity?
Konar, C.; Hardcastle, M.J.; Jamrozy, M.; Croston, J.H. (2013-04-11)We present multifrequency radio observations of two well-known episodic Fanaroff-Railey type II (FR II) radio galaxies (J0116-4722 and J1158+2621) and a detailed investigation of the life cycle of episodic radio galaxies ... -
Particle acceleration and dynamics of double-double radio galaxies : Theory versus observations
Konar, C.; Hardcastle, M.J. (2013-12-01)In this paper, we showthat a small sample of radio galaxies with evidence for multiple epochs of jet activity (so-called double-double radio galaxies) have the same electron injection spectral index in the two activity ... -
Rejuvenated radio galaxies J0041+3224 and J1835+6204 : how long can the quiescent phase of nuclear activity last?
Konar, C.; Hardcastle, M.J.; Jamrozy, M.; Croston, J.H.; Nandi, S. (2012-08)We present radio observations of two well-known doubledouble radio galaxies, J0041+3224 and J1835+6204, at frequencies ranging from 150 to 8460 MHz, using both the Giant Metrewave Radio Telescope and the Very Large Array. ...