Simulation Studies on Faraday Rotation Measure Observations of Radio Sources

Details Simulation Studies on Faraday Rotation Measure Observations of Radio Sources Simulation Studies on Faraday Rotation Measure Observations of Radio Sources

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011acasn..52..332x&link_type=abstract

Acta Astronomica Sinica, vol. 52, no.4, p.332-338

Other

Telescopes, Radiation Mechanisms: Non-Thermal, Polarization, Ism: Magnetic Fields

Scientific paper

In the beam of a radio telescope, background radio sources may appear around a target radio source. The polarized radio emission of these background radio sources will influence the polarization measurements of the target source. Through simulation studies on the cases of a single and multiple polarized background radio sources, it is found that if we only measure the polarization parameters at two or three frequencies, the derived rotation measures (RMs) and other polarization parameters of the target radio sources are not reliable. The proper approach is to measure the Stokes parameters Q and U in multiple bands, and then make RM synthesis to get all RMs of the target radio sources.

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