Decay Phase Rise Phase

If the heating time becomes sufficiently long, the coronal loop becomes dense enough, enabling that the radiative cooling balances with conduction flux. At that time, we have a steady coronal loop, in which the balance between (unknown) heating F, conduction flux κ0T 7/2/L, and radiative cooling n2Λ(T)L; F κ0T 7/2/L n2Λ(T)L (7) Here the radiative loss function Λ(T) is approximated to Λ(T) 3×10−23(T/107K)α (8) α = −1/2 for T < 107 K, α = 1/2 for T> 107 K (9) Above equations are reduced to n 10(7−2α)/4T 2/L (10) Then, the EM−T relation become