Image Details

Choose export citation format:

Strong Excess Faraday Rotation on the Inside of the Sagittarius Spiral Arm

  • Authors: R. Shanahan, S. J. Lemmer, J. M. Stil, H. Beuther, Y. Wang, J. Soler, L. D. Anderson, F. Bigiel, S. C. O. Glover, P. Goldsmith, R. S. Klessen, N. M. McClure-Griffiths, S. Reissl, M. Rugel, and R. J. Smith

2019 The Astrophysical Journal Letters 887 L7.

  • Provider: AAS Journals

Caption: Figure 1.

Faraday rotation of G48.561−0.364, the fifth highest RM in the sample. The top panel shows Stokes Q (blue) and U (red) as a function of λ2 with the result of QU fitting, adopting a depolarizing turbulent foreground screen model with Faraday depth dispersion σϕ, ﹩{ \mathcal P }={{ \mathcal P }}_{0}\exp [-2{\sigma }_{\phi }^{2}{\lambda }^{4}-2i\phi {\lambda }^{2}]﹩ (Sokoloff et al. 1998). The bottom panel shows the dirty Faraday depth spectrum (gray), the RMTF with amplitude scaled to the strength of the signal (green, centered on ϕ = 0 rad m−2), the RM Clean deconvolved Faraday depth spectrum ﹩| { \mathcal F }| ﹩ (black), and RM clean components in red.

Other Images in This Article
Copyright and Terms & Conditions