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7 papers · 2 filters
Properties of the Magneto-ionic Medium in the Halo of M51 revealed by Wide-band Polarimetry
S. A. Mao, E. Zweibel, A. Fletcher +2
We present a study of the magneto-ionic medium in the Whirlpool galaxy (M51) using new wide-band multi-configuration polarization data at L band (1-2 GHz) obtained at the Karl G. J…
Magnetic Fields in a Sample of Nearby Spiral Galaxies
Cameron Van Eck, Jo-Anne Brown, Anvar Shukurov +1
Both observations and modelling of magnetic fields in the diffuse interstellar gas of spiral galaxies are well developed but the theory has been confronted with observations for on…
Magnetic Spiral Arms and Galactic Outflows
Luke Chamandy, Anvar Shukurov, Kandaswamy Subramanian
Galactic magnetic arms have been observed between the gaseous arms of some spiral galaxies; their origin remains unclear. We suggest that magnetic spiral arms can be naturally gene…
The nature of the low-frequency emission of M51: First observations of a nearby galaxy with LOFAR
D. D. Mulcahy, A. Horneffer, R. Beck +25
The grand-design spiral galaxy M51 was observed with the LOFAR High Frequency Antennas (HBA) and imaged in total intensity and polarisation. This observation covered the frequencie…
Constraining regular and turbulent magnetic field strengths in M51 via Faraday depolarization
Carl Shneider, Marijke Haverkorn, Andrew Fletcher +1
We employ an analytical model that incorporates both wavelength-dependent and wavelength-independent depolarization to describe radio polarimetric observations of polarization at $…
Depolarization of synchrotron radiation in a multilayer magneto-ionic medium
Carl Shneider, Marijke Haverkorn, Andrew Fletcher +1
Depolarization of diffuse radio synchrotron emission is classified in terms of wavelength-independent and wavelength-dependent depolarization in the context of regular magnetic fie…