{"paper":{"title":"Calibrating High-Precision Faraday Rotation Measurements for LOFAR and the Next Generation of Low-Frequency Radio Telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Alexov, A. Asgekar, A. Bonafede, A. G. Polatidis, A. Horneffer, A. Karastergiou, A. Noutsos, A. van Duin, A. W. Gunst, B. Ciardi, B. W. Stappers, C. Ferrari, C. Sobey, C. Sotomayor-Beltran, C. Tasse, D. D. Mulcahy, E. Juette, E. Keane, E. Orru, F. Breitling, F. De Gasperin, G. Bernardi, G. de Bruyn, G. Heald, G. Kuper, G. Macario, H. Falcke, H. Munk, H. Paas, H. Roettgering, I. M. Avruch, J. Anderson, J. Broderick, J. Eisloeffel, J. Griessmeier, J. Kohler, J. P. McKean, J. Sluman, J. van Leeuwen, J. W. T. Hessels, L. Birzan, L. V. E. Koopmans, M. A. Garrett, M. Brueggen, M. E. Bell, M. Hoeft, M. Iacobelli, M. J. Bentum, M. Kramer, M. Kuniyoshi, M. Pandey-Pommier, M. Pilia, M. R. Bell, M. Serylak, M. Tagger, M. W. Wise, O. Wucknitz, P. Best, P. Maat, P. Zarka, R. A. Fallows, R. A. M. J. Wijers, R. Beck, R. Fender, R.-J. Dettmar, R. J. van Weeren, R. Pizzo, R. Vermeulen, S. Duscha, S. J. Wijnholds, S. Markoff, S. ter Veen, S. Yatawatta, T. E. Hassall, T. Grit, V. I. Kondratiev, W. Frieswijk, W. N. Brouw, W. Reich, Y. Tang","submitted_at":"2013-03-25T17:51:07Z","abstract_excerpt":"Faraday rotation measurements using the current and next generation of low-frequency radio telescopes will provide a powerful probe of astronomical magnetic fields. However, achieving the full potential of these measurements requires accurate removal of the time-variable ionospheric Faraday rotation contribution. We present ionFR, a code that calculates the amount of ionospheric Faraday rotation for a specific epoch, geographic location, and line-of-sight. ionFR uses a number of publicly available, GPS-derived total electron content maps and the most recent release of the International Geomagn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.6230","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}