Nanoflash Distribution at the Solar Minimum

We use data from the Atmospheric Imaging Assembly (AIA) telescope on the Solar Dynamics Observatory (SDO) spacecraft in the 171 angstrom channel to investigate the spatial distribution of low-energy flares (nanoflashes). We have studied two periods: 05/20/2019 from 1200 UT to 1300 UT and 05/10/2020 from 1200 UT to 1300 UT. In total, we found 87974 nanoflares with an average formation rate of 6.0 x 10(-21) cm(-2) s(-1). For solar latitudes from 0 degrees up to 50 degrees the nanoflare formation rate is approximately uniform with a standard deviation of about 25%. We have found an asymmetry in the rate of formation of nanoflares in the southern and northern hemispheres of the Sun: the rate of formation of nanoflares in the southern hemisphere was 34-42% higher than in the northern one. During this period, the same asymmetry was also observed for ordinary flares. We also found a weak dependence of the nanoflare formation rate on the solar cycle: the number of nanoflares increases with higher solar activity.