Wide-spectrum slow magnetoacoustic waves in coronal loops

A model interpreting variations of EUV brightness upward propagating in sol ar coronal loops as slow magnetoacoustic waves is developed. A loop is cons idered to have a non-zero plane inclination angle and offset of the circula r loop centre from the baseline. The model also incorporates effects of dis sipation and gravitational stratification. A linear evolutionary equation i s derived and applied to investigations of slow wave dynamics. Both the non -zero plane inclination and the offset decrease the growth of the wave ampl itude due to stratification. It is shown that wide-spectrum slow magnetoaco ustic waves, consistent with currently available observations in the low fr equency part of the spectrum, can provide a rate of heat deposition suffici ent to heat the loop. In this scenario, the heat would be deposited near th e loop footpoints, which agrees with the current observational data.