Gaura provine din fuziunea a două găuri negre, iar cercetătorii s-au declarat surprinși.
„Este o uşă care se deschide către un nou peisaj cosmic. O întreagă lume nouă”, a spus Stavros Katsanevas, directorul proiectului Virgo, unul dintre cei doi detectori de unde gravitaţionale care a captat semnalele acestei noi găuri negre.
Este vorba despre prima dovadă directă a existenţei găurilor negre de masă intermediară (de 100, până la 100.000 mai mare decât Soarele), care ar putea explica una dintre enigmele cosmologiei: formarea găurilor negre supermasive, aceşti monştri cosmici aflaţi în centrul unor galaxii, între care şi Calea Lactee, scrie news.ro.
Obiectul misterios, descris în Physical Review Letters şi Astrophysical Journal Letters de o echipă internaţională de mai mult de 1.500 de oameni de ştiinţă, se numeşte „GW190521”.
Prezise de Albert Einstein în 1915 în teoria relativităţii generale şi observate în mod direct un secol mai târziu, undele gravitaţionale sunt infime deformaţii ale spaţiului-timp, asemănătoare oscilaţiilor apei la suprafaţa unui iaz.
Ele se nasc sub efectul unor fenomene cosmice violente, precum coliziunea a două găuri negre, care emit o cantitate de energie fenomenală.
Unda gravitaţională a avut nevoie de 7 miliarde de ani pentru a ajunge pe Pământ. Este cea mai îndepărtată gaură neagră şi, deci cea mai veche descoperită vreodată.
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