Radio properties of the low surface brightness SNR G65.2+5.7

Understand

Many physical properties of this SNR such as spectrum and polarization can only be investigated by radio observations.

• The $\lambda$11 cm and $\lambda$6\ cm continuum and polarization observations of SNR G65.2+5.7 were made with the Effelsberg 100-m and the Urumqi 25-m telescopes, respectively, to investigate the integrated spectrum, the spectral index distribution, and the magnetic field properties.
• $\lambda$21 cm archival data from the Effelsberg 100-m telescope have been also used.
• The integrated flux densities of G65.2+5.7 at $\lambda 11$ cm and $\lambda 6$ cm are $21.9\pm3.1$ Jy and 16.8$\pm$1.8 Jy, respectively.