Micronova

[1][2][3] A team led by Durham University researchers announced on 20 April 2022 that they identified three micronovae using data from the Transiting Exoplanet Survey Satellite (TESS).

[5] The phenomenon had previously been observed in the white dwarf binary TV Columbae using data from the International Ultraviolet Explorer.

This causes the hydrogen fusion explosions on the surface to be more localized and smaller than a typical nova.

[5] An alternative explanation for the phenomenon is that these represent magnetic reconnection events either in the accretion disks or in the coronae of the companion stars.

The properties of its short duration flares also do not agree with predictions for nuclear fusion events.