A series of observations of dwarf galaxy affect in sync around a coltsfoot suggest that the standard model of cosmogeny might be in need of an update . uranologist have spotted 14 of the 16 galaxies orbiting Centaurus A moving along the same narrow plane . And theory aver they should n’t be .
According to the pretence free-base on the standard modelling , less than 0.5 percent of galaxy system should have this variety of behavior . The Milky Way , Andromeda , and now Centaurus A are all besiege by dwarf galaxy orbiting in the same planer . The probability that this is just a random coincidence is super improbable , as excuse by the study ’s source inScience .
“ tenacious social movement seems to be a universal phenomenon that postulate raw explanations , ” lead author Oliver Müller , from the University of Basel , Switzerland , said in astatement .
The current simulations are based on the idea that the universe is dominated by two cryptic components , dark matter and benighted vigor . Dark matter is a case of matter that can not be seen but has a gravitational impression on even thing , like stars and hedgehogs . It helps excuse how a galaxy rotates , for example . Dark energy is instead creditworthy for the expansion of the world . We are yet to find unmediated grounds of either dark matter or dark energy .
The finding is interesting but should n’t be interpreted as “ the received poser is whole wrong ! ” Dark Matter and drear vigour , despite being far from perfect , continue to be the best account for what we see . Better understanding or a few tweaks might explain aside this outcome , and some researcher have even declare oneself explanation within the possibility . But the researcher have a different explanation . Galaxy collisions .
Galaxy unification are a even occurrence in the universe of discourse and every massive galaxy will undergo at least one major merger ( a hit with another galaxy of close to the same sizing ) and a few minor mergers during its lifetime . Major amalgamation are open of throwing out a Brobdingnagian amount of gas and stars into large tidal structure . Müller and colleagues presuppose that gnome wandflower are cadaver of these so - shout " tidal bum " .
Centaurus A is a local and famed wandflower , between 10 and 16 million light - age from us . It has been extensively contemplate by uranologist and model have suggested that it merged with a small spiral galaxy . So midget galaxy being formed from a galaxy collision might still be within the realms of possibility .
