Search Results - "polarimetry"
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GRIPS - Gamma-Ray Imaging, Polarimetry and Spectroscopy
Published 2012“…The Gamma-Ray Imaging, Polarimetry and Spectroscopy (“GRIPS”) mission with its three instruments Gamma-Ray Monitor (GRM), X-Ray Monitor (XRM) and InfraRed Telescope (IRT) addresses fundamental questions in ESA’s Cosmic Vision plan. …”
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Improving the Murchison Widefield Array tile model for polarimetry
Published 2014“…This paper summarizes the progress to date in improving the Murchison Widefield Array’s (MWA) “tile” model for polarimetry. A simple model that accounts for inter-element mutual coupling is presented which explains the false polarization leakage in Stokes Q (“false Q”) seen when the array is scanned away from zenith in the principal planes. …”
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The Challenges of Low-Frequency Radio Polarimetry: Lessons from the Murchison Widefield Array
Published 2017“…We present techniques developed to calibrate and correct Murchison Widefield Array low-frequency (72–300 MHz) radio observations for polarimetry. The extremely wide field-of-view, excellent instantaneous (u, v)-coverage and sensitivity to degree-scale structure that the Murchison Widefield Array provides enable instrumental calibration, removal of instrumental artefacts, and correction for ionospheric Faraday rotation through imaging techniques. …”
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Wide-field imaging and polarimetry for the biggest and brightest in the 20-GHz southern sky
Published 2009“…We present the wide-field imaging and polarimetry at ? = 20 GHz of seven most extended, bright (Stotal = 0.50 Jy), high-frequency selected radio sources in the southern sky with declinations d < -30°. …”
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Compact symmetric objects and supermassive binary black holes in the VLBA Imaging and Polarimetry Survey
Published 2016“…We present multifrequency Very Long Baseline Array (VLBA) follow-up observations of VLBA Imaging and Polarimetry Survey sources identified as likely compact symmetric objects (CSOs) or supermassive binary black holes (SBBHs). …”
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Radio polarimetry as a probe of unresolved jets: The 2013 outburst of XTE J1908+094
Published 2015“…Here we present multifrequency radio and X-ray data, including radio polarimetry, spanning the entire period of the 2013 outburst. …”
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Detailed optical and near-infrared polarimetry, spectroscopy and broad-band photometry of the afterglow of GRB 091018: Polarization evolution
Published 2012“…In particular, our data set of the afterglow of GRB 091018 (at redshift z = 0.971) comprises optical linear polarimetry (R band, 0.13–2.3 d after burst); circular polarimetry (R band) and near-infrared linear polarimetry (Ks band). …”
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