منابع مشابه
Faraday Rotation Measure Synthesis
We extend the rotation measure work of Burn (1966) to the cases of limited sampling of λ2 space and non-constant emission spectra. We introduce the rotation measure transfer function (RMTF), which is an excellent predictor of nπ ambiguity problems with the λ coverage. Rotation measure synthesis can be implemented very efficiently on modern computers. Because the analysis is easily applied to wi...
متن کاملTime Variable Faraday Rotation Measures of 3c 273 & 3c 279
Multifrequency polarimetry with the VLBA confirms the previously reported timevarying Faraday rotation measure (RM) in the quasar 3C 279. Variability in the RM and electric vector position angle (EVPA) of the jet component (C4) is seen making it an unreliable absolute EVPA calibrator. 3C 273 is also shown to vary its RM structure on 1.5 year time-scales. Variation in the RM properties of quasar...
متن کاملFaraday rotation observations of CMEs
[1] Simultaneous observations obtained by the Solwind coronagraph and Faraday rotation of the Helios radio frequency carrier signal in 1979 showed that CMEs produce characteristic ‘W’ or sigmoid transients in Faraday rotation observations similar to those observed by Pioneer 6 and 9 in 1968 and 1970. We demonstrate that a relaxed flux-rope model is capable of reproducing these observations. Thr...
متن کاملFaraday Rotation Estimation Performance Analysis
Different Faraday Rotation (FR) estimators are discussed, their estimation performances are assessed and compared to each other. The algorithms are applied on a set of quad-pol ALOS Pal-SAR data and the obtained estimates are validated against FR values derived from TEC maps obtained from GPS measurements.
متن کاملPhase-resolved Faraday rotation in pulsars
We have detected significant Rotation Measure variations for 9 bright pulsars, as a function of pulse longitude. An additional sample of 10 pulsars showed a rather constant RM with phase, yet a small degree of RM fluctuation is visible in at least 3 of those cases. In all cases, we have found that the rotation of the polarization position angle across our 1.4 GHz observing band is consistent wi...
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ژورنال
عنوان ژورنال: Laser Physics
سال: 2017
ISSN: 1054-660X,1555-6611
DOI: 10.1088/1555-6611/aa94de