Next Article in Journal
Planetary Nebulae Shaped by Common Envelope Evolution
Next Article in Special Issue
Strategy to Explore Magnetized Cosmic Web with Forthcoming Large Surveys of Rotation Measure
Previous Article in Journal
Correction: Rubin, J.L. Applications of a Particular Four-Dimensional Projective Geometry to Galactic Dynamics. Galaxies 2018, 6, 83
Previous Article in Special Issue
Towards Exascale Simulations of the ICM Dynamo with WENO-Wombat
Article Menu

Export Article

Open AccessArticle
Galaxies 2018, 6(4), 112; https://doi.org/10.3390/galaxies6040112

The Power of Low Frequencies: Faraday Tomography in the Sub-GHz Regime

1
Dunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, ON M5S 3H4, Canada
2
Department of Physics and Astronomy, University of Calgary, Calgary, AB T2N 1N4, Canada
Received: 17 September 2018 / Revised: 17 October 2018 / Accepted: 21 October 2018 / Published: 23 October 2018
(This article belongs to the Special Issue The Power of Faraday Tomography)
Full-Text   |   PDF [4462 KB, uploaded 23 October 2018]   |  

Abstract

Faraday tomography, the study of the distribution of extended polarized emission by strength of Faraday rotation, is a powerful tool for studying magnetic fields in the interstellar medium of our Galaxy and nearby galaxies. The strong frequency dependence of Faraday rotation results in very different observational strengths and limitations for different frequency regimes. I discuss the role these effects take in Faraday tomography below 1 GHz, emphasizing the 100–200 MHz band observed by the Low Frequency Array and the Murchison Widefield Array. With that theoretical context, I review recent Faraday tomography results in this frequency regime, and discuss expectations for future observations. View Full-Text
Keywords: polarization; ISM: magnetic fields; radio continuum: ISM; techniques: polarimetric; Faraday tomography; Milky Way polarization; ISM: magnetic fields; radio continuum: ISM; techniques: polarimetric; Faraday tomography; Milky Way
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Van Eck, C.L. The Power of Low Frequencies: Faraday Tomography in the Sub-GHz Regime. Galaxies 2018, 6, 112.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Galaxies EISSN 2075-4434 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top