Milli-arcsecond scale rotation measure in two CSSs

Details Milli-arcsecond scale rotation measure in two CSSs Milli-arcsecond scale rotation measure in two CSSs

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001iaus..205..138m&link_type=abstract

Galaxies and their Constituents at the Highest Angular Resolutions, Proceedings of IAU Symposium #205, held 15-18 August 2000 at

Computer Science

Scientific paper

Polarimetric observations of the Compact Steep-spectrum Sources 0548+164 and 1524-136 with the VLBA at 5 frequencies, show that the two sources are significantly polarised on the milli-arcsecond scale. These detailed polarization information allow us to study the Rotation Measure and depolarization distributions in these sources, providing valuable insights into the nature of the depolarizing gas and allowing a study of the interaction of the jets with the interstellar media in the host galaxies. Their distorted structures and the asymmetry in the location of the outer components suggest that the components are evolving through a dense asymmetric environment in the central regions of their parent galaxies. We present the results of our observations and discuss their implications for the evolution of young radio sources. (Collaborators: D.J. Saikia, NCRA, TIFR, India; W. Junor, University of New Mexico, Albuquerque, USA; C.J. Salter, Arecibo Observatory, Puerto Rico, USA)

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