several parameters that can be used to estimate the order of magnitude of energy released during the ARTBs.

Similar to @2014Sci...346C.315P, the thermal and kinetic energy density can be written as

$$E_{th}=3/2 ~n_e~k_B~T$$

$$E_{kin}=1/2~n_e~\mu~v^2$$

where $n_e$ is electron number density, $k_B$ is the Boltzmann constant, $T$ is temperature, $v$ is flow speed, and $\mu$ is mean molecular weight ($\approx 0.6m_p$ for fully ionized plasma). Thus, the total energy released in volume $V$ will be given by $V (E_{th}+E_{kin}) $.

To estimate energy released during the ARTBs, we use parameters obtained from cool transition region lines ( and ) during the peak phase of the transient as $n_e$ $\approx$ 10$^{11.55}$ cm$^{-3}$, $T$ $\approx 1.4\times10^5$ K, $v$ $\approx$ 20 km s$^{-1}$. We consider the volume $V$ of the emission to be $\approx 1500~\times1500~\times~1500$ km$^3$, corresponding to a region of 2cubical structure. Using these values, we find that the total energy released is $\approx 3.7 \times 10^{25}$ erg. We also estimate total energy released at hot temperatures to be $\approx 7 \times 10^{26}$ erg by using the parameters obtained from hot AIA channels as $n_e$ $\approx 9\times 10^{10}$ cm$^{-3}$, $T$ $\approx 10$ MK, $v$ $\approx$ 200 km s$^{-1}$, and $V$ $\approx 1500~\times1500~\times~1500$ km$^3$. 