China News Service, February 25th. According to foreign media reports, a small star has attracted the attention of astronomers. Studies released recently show that the intensity of X-ray "super flare" emitted by it is 10 times that of the sun-generated flare, although its The mass is only 8% of the sun.
According to reports, research members have pointed out that this star, known as J0331-27, is a rare L-type dwarf. Due to its small mass and low surface temperature, these stars are generally considered to have insufficient energy to release such. Flares of intensity.
The researcher Beate Stelzer said, "Because we did not expect L-type dwarfs to store enough energy in their magnetic fields to trigger such an explosion, this is the most interesting finding in this discovery. Science. "
It is reported that scientists found this flare in archive data recorded by the European Space Agency's XMM-Newton X-ray Observatory, and the latest can be traced back to July 5, 2008.
In addition, the research team found it very interesting. Usually, if a star is to emit such a huge flare, it will be accompanied by a smaller flare, but this is not the case for J0331.
"The data seem to indicate that an L-type dwarf will take longer to accumulate energy, and then there will be a sudden big explosion," Stelzer said.