Speaker
Description
Synchrotron filaments in galaxy clusters provide unique insights into the interplay between magnetic fields, relativistic particles, and the intracluster medium (ICM). Using LOFAR 144 MHz and NVSS 1.4 GHz data, we measured flux densities, derived spectral indices, and calculated synchrotron pressures for filaments associated with wide-angle tail (WAT) galaxies. These filaments exhibit steep spectral indices ($\alpha \sim -1.2$ to $-2.5$) and magnetic field strengths ranging from a few to tens of microgauss, indicative of synchrotron aging and quasi-static equilibrium with the ICM. ROSAT X-ray observations were analyzed to extract thermal pressures and construct radial profiles, revealing systematic differences between thermal and synchrotron pressures and emphasizing the influence of environmental density and turbulence on filament morphology and stability. By integrating radio and X-ray observations, we advance understanding of synchrotron filament dynamics, AGN feedback, and magnetic field amplification in galaxy clusters.
| Stream | Science |
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