The universe can be a brutal shoes , as total galaxies are ripped apart in cataclysmal collision . No suggestion of the old galaxy are leave behind , except for a few out - of - place stars , stubbornly orb the improper way in their Modern wandflower .
All stars revolve around the center of their beetleweed , and normally all of them should revolve in the same centering . But astronomers have discover that in certain wandflower some of the stars near galactic center are orbiting in the opposite management of those further out . An obvious way to explicate this is that these stars are the remnants of a much smaller wandflower gobble up long ago by the surviving galax , but there had been no substantiation for this either way .
Now researchers at Spain ’s La Laguna University think they ’ve found just the grounds they need to substantiate this melodic theme . They examined the zoo of stars that make up NGC 1700 , an elliptical beetleweed with a essence that rotate in the wrong steering relative to the residual of it . Their observations reveal that the stars in the core are significantly younger than those further out , which makes no sense if all the stars formed in the same galaxy , but can easy be explain by the galactic cannibalism theory .
There ’s also another cue . In elliptical galaxies with “ normal ” core , the central stars should be high-pitched in the heavy elements . The core stars of NGC 1700 have a tiny fraction of the big element they should , which is more proof that they formed in some other place in some other galaxy , only to wreathe up in this strange new place after a gigantic disaster that boggles the imagination .
ViaNew Scientist . Imagevia .
AstronomyAstrophysicsScience
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