39 ‘su­per­mas­sive’ new gal­ax­ies found

Daily Mail - - News - By Amelia Clarke

DOZeNS of ‘su­per­mas­sive’ gal­ax­ies have been found on the edge of the uni­verse.

As­tronomers have dis­cov­ered 39 of the an­cient gal­ax­ies, which have up to ten times the mass of our own Milky Way.

It is the first mul­ti­ple dis­cov­ery of its kind – and throws cur­rent as­sump­tions about the uni­verse into doubt, re­searchers say.

Scientists at the univer­sity of tokyo say the gal­ax­ies were formed in the two bil­lion years fol­low­ing the Big Bang, which oc­curred 13.8bil­lion years ago. each one cre­ates a new star ev­ery cou­ple of days – com­pared with one around ev­ery six months in the Milky Way.

the study, pub­lished in the jour­nal Na­ture, also says that the gal­ax­ies are closely con­nected with su­per­mas­sive black holes and the dis­tri­bu­tion of dark mat­ter.

Dark mat­ter is in­vis­i­ble as it emits no light. It is thought to make up around 85 per cent of the mat­ter in the uni­verse and is un­der­stood to be what binds gal­ax­ies to­gether.

But the dis­cov­ery of new, ex­tremely dense ‘su­per­mas­sive’ gal­ax­ies could al­ter scientists’ cur­rent un­der­stand­ing of dark mat­ter, as they do not al­low for it to op­er­ate as as­tronomers would ex­pect.

Ko­taro Kohno, from the univer­sity of tokyo, said: ‘Mas­sive gal­ax­ies are in­ti­mately con­nected with the dis­tri­bu­tion of dark mat­ter. the­o­ret­i­cal re­searchers will need to update their the­o­ries.’

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.