| Přispěvatelé: |
Wilson, Lynn B., Jones, Thomas W., Ryu, Dongsu, Brunetti, Gianfranco, Oh, Peng |
| Popis: |
Our usual assumption of the Maxwellian distribution for thermal electrons in the intracluster plasma may be incorrect, as evidenced by observations in the solar wind plasma. Strong deviations are possible, and even likely, in cluster locations where cosmic ray acceleration should be occurring as seen from the resulting synchrotron radio emission, such as radio halos and relics. Recent theoretical work shows that such non-Maxwellian electron distributions would alter the ionization balance and emission line ratios for various elements, and even the shape of thermal continuum that we use for cluster temperature determination. To find evidence for such deviations at cluster shock fronts and radio relics, an instrument with 1 arcsec, 1 eV resolution and a large collecting area is required. |
