matplotlibで縦線を引く
ax1.axvline(x=sen_1_left , color="blue", label="meam±3sigma")
ax1.axvline(x=sen_1_right , color="blue")
ax2.axvline(x=sen_2_left , color="orange", label="meam±3sigma")
ax2.axvline(x=sen_2_right , color="orange")
ax1.axvline(x=sen_1_left , color="blue", label="meam±3sigma")
ax1.axvline(x=sen_1_right , color="blue")
ax2.axvline(x=sen_2_left , color="orange", label="meam±3sigma")
ax2.axvline(x=sen_2_right , color="orange")