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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…

We have conducted a survey of Faraday rotation in a sample of 191 compact radio-loud AGNs as part of the MOJAVE (Monitoring of Jets in Active galactic nuclei with VLBA Experiments) project. The observations were carried out with the VLBA at…

High Energy Astrophysical Phenomena · Physics 2012-05-03 T. Hovatta , M. L. Lister , M. F. Aller , H. D. Aller , D. C. Homan , Y. Y. Kovalev , A. B. Pushkarev , T. Savolainen

We report on a combined experimental and theoretical study of polarization self-rotation in an ultracold atomic sample. In the experiments, a probe laser is tuned in the spectral vicinity of the D1 line to observe polarization self-rotation…

Atomic Physics · Physics 2013-03-14 Travis Horrom , Salim Balik , Arturo Lezama , Mark D. Havey , Eugeniy E. Mikhailov

Context. The current algorithms used for the calibration and analysis of very long baseline interferometry (VLBI) networks that only use linear polarizers (as is the case of the VLBI Global Observing System, VGOS) do not properly account…

Instrumentation and Methods for Astrophysics · Physics 2024-06-19 V. Pérez-Díez , I. Martí-Vidal , E. Albentosa-Ruiz , J. González-García , F. Jaron , T. Savolainen , M. H. Xu , R. Bachiller

Using polarization measurements in remote sensing and optical studies allows retrieving more information. We consider relationship between the reflection coefficients of plane and rough surfaces for linearly polarized waves. Certain…

Optics · Physics 2012-12-14 Yu. K. Shestopaloff

We report on multi-frequency polarimetry Very Long Baseline Interferometry observations of active galactic nuclei using the VLBA. These observations are used to construct images of the Faraday Rotation Measure (RM) in J1613+342, Mrk 501, 3C…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 G. B. Taylor , R. Zavala

We perform polarimetry analysis of 20 active galactic nuclei (AGN) jets using the Very Long Baseline Array (VLBA) at 1.4, 1.6, 2.2, 2.4, 4.6, 5.0, 8.1, 8.4, and 15.4 GHz. The study allowed us to investigate linearly polarized properties of…

High Energy Astrophysical Phenomena · Physics 2018-03-12 E. V. Kravchenko , Y. Y. Kovalev , K. V. Sokolovsky

We present full-polarization observations at $\lambda = 0.87$ mm (345 GHz) conducted with the Atacama Large Millimeter/submillimeter Array (ALMA) toward Messier 87 (M87) and seven other radio-loud active galactic nuclei (AGN). We determine…

Astrophysics of Galaxies · Physics 2025-07-23 Ciriaco Goddi , Douglas F. Carlos

Polarization observations using modern radio telescopes cover large numbers of frequency channels over broad bandwidths, and require advanced techniques to extract reliable scientific results. We present RM-Tools, analysis software for…

We present a detailed study of the Faraday depth structure of four bright (> 1 Jy), strongly polarized, unresolved, radio-loud quasars. The Australia Telescope Compact Array (ATCA) was used to observe these sources with 2 GHz of…

We report observations of Faraday rotation measures (RMs) for a sample of 191 extragalactic radio jets observed within the MOJAVE program. Multifrequency VLBA observations were carried out over twelve epochs in 2006 at four frequencies…

Cosmology and Nongalactic Astrophysics · Physics 2013-03-12 T. Hovatta , M. L. Lister , M. F. Aller , H. D. Aller , D. C. Homan , Y. Y. Kovalev , A. B. Pushkarev , T. Savolainen

The Faraday Rotation Ammeter (FRA) experiment takes advantage of the Faraday Effect in order to measure the current density in a given environment. The Faraday Effect explains a rotation of a polarized electric field as it propagates…

Physics Education · Physics 2020-01-03 Jason Sisk

A joint action of depth and bandwidth depolarization in the interstellar medium is considered using a model of N homogeneous synchrotron layers with Faraday rotation. The bandwidth depolarization can be used in multifrequency polarimetric…

Astrophysics · Physics 2007-05-23 E. N. Vinyajkin

Faraday rotation measure (RM) synthesis is an important tool to study and analyze galactic and extra-galactic magnetic fields. Since there is a Fourier relation between the Faraday dispersion function and the polarized radio emission, full…

Instrumentation and Methods for Astrophysics · Physics 2015-05-28 Feng Li , Shea Brown , Tim J. Cornwell , Frank de Hoog

We study the polarization properties of 22 known rotating radio transients (RRATs) with the 64-m Parkes radio telescope and present the Faraday rotation measures (RMs) for the 17 with linearly polarized flux exceeding the off-pulse noise by…

In Very-Long Baseline Interferometric arrays, nearly co-located stations probe the largest scales and typically cannot resolve the observed source. In the absence of large-scale structure, closure phases constructed with these stations are…

High Energy Astrophysical Phenomena · Physics 2026-05-06 Boris Georgiev , Paul Tiede , Sebastiano D. von Fellenberg , Michael Janssen , Iniyan Natarajan , Lindy Blackburn , Jongho Park , Erandi Chavez , Andrew T. West , Kotaro Moriyama , Jun Yi Koay , Hendrik Müller , Dhanya G. Nair , Avery E. Broderick , Maciek Wielgus , Kazunori Akiyama , Ezequiel Albentosa-Ruíz , Antxon Alberdi , Walter Alef , Juan Carlos Algaba , Richard Anantua , Keiichi Asada , Rebecca Azulay , Uwe Bach , Anne-Kathrin Baczko , David Ball , Mislav Baloković , Bidisha Bandyopadhyay , John Barrett , Michi Bauböck , Bradford A. Benson , Dan Bintley , Raymond Blundell , Katherine L. Bouman , Geoffrey C. Bower , Michael Bremer , Roger Brissenden , Silke Britzen , Dominique Broguiere , Thomas Bronzwaer , Sandra Bustamante , Douglas F. Carlos , John E. Carlstrom , Andrew Chael , Chi-kwan Chan , Dominic O. Chang , Koushik Chatterjee , Shami Chatterjee , Ming-Tang Chen , Yongjun Chen , Xiaopeng Cheng , Paul Chichura , Ilje Cho , Pierre Christian , Nicholas S. Conroy , John E. Conway , Thomas M. Crawford , Geoffrey B. Crew , Alejandro Cruz-Osorio , Yuzhu Cui , Brandon Curd , Rohan Dahale , Jordy Davelaar , Mariafelicia De Laurentis , Roger Deane , Gregory Desvignes , Jason Dexter , Vedant Dhruv , Indu K. Dihingia , Sheperd S. Doeleman , Sergio A. Dzib , Ralph P. Eatough , Razieh Emami , Heino Falcke , Joseph Farah , Vincent L. Fish , Edward Fomalont , H. Alyson Ford , Marianna Foschi , Raquel Fraga-Encinas , William T. Freeman , Per Friberg , Christian M. Fromm , Antonio Fuentes , Peter Galison , Charles F. Gammie , Roberto García , Olivier Gentaz , Ciriaco Goddi , Roman Gold , Arturo I. Gómez-Ruiz , José L. Gómez , Minfeng Gu , Mark Gurwell , Kazuhiro Hada , Daryl Haggard , Ronald Hesper , Dirk Heumann , Luis C. Ho , Paul Ho , Mareki Honma , Chih-Wei L. Huang , Lei Huang , David H. Hughes , Shiro Ikeda , C. M. Violette Impellizzeri , Makoto Inoue , Sara Issaoun , David J. James , Buell T. Jannuzi , Britton Jeter , Wu Jiang , Alejandra Jiménez-Rosales , Michael D. Johnson , Svetlana Jorstad , Adam C. Jones , Abhishek V. Joshi , Taehyun Jung , Ramesh Karuppusamy , Tomohisa Kawashima , Garrett K. Keating , Mark Kettenis , Dong-Jin Kim , Jae-Young Kim , Jongsoo Kim , Junhan Kim , Motoki Kino , Prashant Kocherlakota , Yutaro Kofuji , Patrick M. Koch , Shoko Koyama , Carsten Kramer , Joana A. Kramer , Michael Kramer , Thomas P. Krichbaum , Cheng-Yu Kuo , Noemi La Bella , Deokhyeong Lee , Sang-Sung Lee , Aviad Levis , Shaoling Li , Zhiyuan Li , Rocco Lico , Greg Lindahl , Michael Lindqvist , Mikhail Lisakov , Jun Liu , Kuo Liu , Elisabetta Liuzzo , Wen-Ping Lo , Andrei P. Lobanov , Laurent Loinard , Colin J. Lonsdale , Amy E. Lowitz , Ru-Sen Lu , Nicholas R. MacDonald , Jirong Mao , Nicola Marchili , Sera Markoff , Daniel P. Marrone , Alan P. Marscher , Iván Martí-Vidal , Satoki Matsushita , Lynn D. Matthews , Lia Medeiros , Karl M. Menten , Izumi Mizuno , Yosuke Mizuno , Joshua Montgomery , James M. Moran , Monika Moscibrodzka , Wanga Mulaudzi , Cornelia Müller , Alejandro Mus , Gibwa Musoke , Ioannis Myserlis , Hiroshi Nagai , Neil M. Nagar , Masanori Nakamura , Gopal Narayanan , Antonios Nathanail , Santiago Navarro Fuentes , Joey Neilsen , Chunchong Ni , Michael A. Nowak , Junghwan Oh , Hiroki Okino , Héctor Raúl Olivares Sánchez , Tomoaki Oyama , Feryal Özel , Daniel C. M. Palumbo , Georgios Filippos Paraschos , Harriet Parsons , Nimesh Patel , Ue-Li Pen , Dominic W. Pesce , Vincent Piétu , Alexander Plavin , Aleksandar PopStefanija , Oliver Porth , Ben Prather , Giacomo Principe , Dimitrios Psaltis , Hung-Yi Pu , Alexandra Rahlin , Venkatessh Ramakrishnan , Ramprasad Rao , Mark G. Rawlings , Angelo Ricarte , Luca Ricci , Bart Ripperda , Jan Röder , Freek Roelofs , Cristina Romero-Cañizales , Eduardo Ros , Arash Roshanineshat , Helge Rottmann , Alan L. Roy , Ignacio Ruiz , Chet Ruszczyk , Kazi L. J. Rygl , León D. S. Salas , Salvador Sánchez , David Sánchez-Argüelles , Miguel Sánchez-Portal , Mahito Sasada , Kaushik Satapathy , Saurabh , Tuomas Savolainen , F. Peter Schloerb , Jonathan Schonfeld , Karl-Friedrich Schuster , Lijing Shao , Zhiqiang Shen , Sasikumar Silpa , Des Small , Randall Smith , Bong Won Sohn , Jason SooHoo , Kamal Souccar , Joshua S. Stanway , He Sun , Fumie Tazaki , Alexandra J. Tetarenko , Remo P. J. Tilanus , Michael Titus , Kenji Toma , Pablo Torne , Teresa Toscano , Efthalia Traianou , Tyler Trent , Sascha Trippe , Matthew Turk , Ilse van Bemmel , Huib Jan van Langevelde , Daniel R. van Rossum , Jesse Vos , Jan Wagner , Derek Ward-Thompson , John Wardle , Jasmin E. Washington , Jonathan Weintroub , Robert Wharton , Kaj Wiik , Gunther Witzel , Michael F. Wondrak , George N. Wong , Jompoj Wongphexhauxsorn , Qingwen Wu , Nitika Yadlapalli , Paul Yamaguchi , Aristomenis Yfantis , Doosoo Yoon , André Young , Ziri Younsi , Wei Yu , Feng Yuan , Ye-Fei Yuan , Ai-Ling Zeng , J. Anton Zensus , Shuo Zhang , Guang-Yao Zhao , Shan-Shan Zhao

Mitigation of radio frequency interference (RFI) is essential to deliver science-ready radio interferometric data to astronomers. In this paper, using dual polarized radio interferometers, we propose to use the polarization information of…

Instrumentation and Methods for Astrophysics · Physics 2020-07-24 Sarod Yatawatta

Faraday rotation describes the change of the linear polarization angle of radiation passing through a magnetized plasma and it is quantified by the rotation measure (RM), which is related to the line-of-sight (LOS) magnetic field component…

Understanding origin and evolution of cosmological magnetic fields requires knowledge of magnetic fields in different extragalactic environments. In this context, a powerful tool is the statistical analysis of the Faraday effect on the…