Eruptive star

A eruptive star is a variable star which can express an increase in luminosity as spectacular as unforeseeable, one very variable duration, a few minutes or a few hours. All the spectrum increases intensity, x-rays with the waves radios.

The eruptive stars are small dwarf reds, although recent research indicates that the dwarf brown can also be capable of eruptions.

The first stars of this type (V1396 Cygni and AT Microscopii) were discovered in 1924. Most known however UV Ceti discovered in 1948 is , and today the eruptive stars are sometimes known like variable UV Ceti .

Nearest close to the Sun, Proxima Centauri is an eruptive star like another neighbor Wolf 359. In the same way, the star of Barnard, the second star nearest could be an eruptive star. Being so thin, all the known variable stars are in a ray of 60 AL de la Terre.

It is thought that the eruptions of these stars are similar to the solar eruptions.

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