On the estimation of the amount of heating for solar coronal loops

Abstract

In the present investigation the amount of heating for some coronal magnetic loops and kernels has been investigated in a general way in line-dipole and point-dipole geometries. This investigation differs from that of Elwert & Narain (1980) in the sense that the electron density has been taken to be finite at the base of the flux-tube in point-dipole geometry as well as in line-dipole geometry and the plane parallel geometry case has been excluded. Results show that the total amount of heating for the loop is larger than that for the kernels. It is larger for line-dipole geometry than for point-dipole geometry. Further, a wider flux-tube requires more heating than a narrower one, as expected.