(NLDO) - 28 strange objects have been identified as "milinovas" that occurred in a way never before seen.
According to Space.com, astronomers have just discovered 28 strange objects inside the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC), two satellite galaxies of the Milky Way galaxy.
In-depth analysis showed that these 28 strange objects were actually 28 "milinovas", temporarily called "mini-novae", created by 28 variable stars with strange behavior.
Illustration of how the "dead object" - a white dwarf - is exploding while continuing to devour its companion - Photo: UNIVERSITY OF WARSAW
In astronomy there is a term often used called "supernova", which is the brilliant final explosion of a star.
Our Sun will eventually become such a supernova.
The newly discovered milinovas are much smaller in size, but still 100 times brighter than the Sun.
They are not the final deaths of stars, but rather unusual eruptions recorded from stars that have a continuous change in brightness when observed, called variable stars.
But the newly recorded variable stars are completely unique.
They produce very characteristic triangular symmetrical explosions that are unlike any previously known variable stars, according to Dr Przemek Mróz from the University of Warsaw (Poland), a member of the research team.
They believe this is because the observed variable stars are actually long dead.
They are white dwarfs, the "zombies" left over from the final explosions of Sun-like stars. But these distant white dwarfs are not alone like the Sun, but have a companion, belonging to a binary star system.
Unfortunately, these white dwarfs become “vampires,” sucking matter from their companions. Whenever they get too full, they explode and release excess energy.
These strange objects were discovered by chance during the OGLE survey, a 20-year project to search for primordial black holes left over from the Big Bang event that created the universe.
Strange variable stars have attracted attention by brightening 10 to 20 times in bursts, which occur periodically over months to years.
One of them, called OGLE-mNOVA-11, erupted late last year, allowing the team to conduct a detailed study of these objects.
Source: https://nld.com.vn/phat-hien-28-vat-the-la-phat-sang-hon-mat-troi-100-lan-196241225111959089.htm
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