Photo: NASA / ESA / J. DePasquale (STScI)
Scientists at Purdue University (USA) explained the behavior of the mysterious supernova SN 2012au that six years after the first outbreak was again a bright, eclipsing the parent galaxy. About it reported in a press release on Phys.org.
The remnants of supernova SN 2012au that broke out in 2012, located in the galaxy NGC 4790, which is removed from the Earth about 60 million light years. Typically, such objects can flare up again, reaching the brightness of the initial flash if their environment is a cloud of hydrogen left by the star before the explosion. However, in the spectrum of SN 2012au was not observed signs of the presence of hydrogen atoms.
Astronomers believe that the repeated increase in gloss occurred for another reason. With the collapse of massive stars formed rapidly rotating neutron star — a pulsar. The interaction of ultrafast charged particles emitted by the pulsar, with the external environment occurred, plerion — fueled by the energy of the neutron star nebula, which begins to glow brightly.
Experts attribute SN 2012au to the so-called Hypernova, which are characterized by large capacity. Although flash 2012 was bright, it faded quite slowly, and the total amount of energy deposited was large enough.
Video, photo All from Russia.