GAL­AX­IES USED TO GLOW GREEN

Sky at Night Magazine - - BULLETIN -

Newly formed gal­ax­ies may have once glowed green. A study of a deep-field im­age taken by the Subaru te­le­scope has shown that many of the thou­sands of gal­ax­ies it has ob­served are en­riched with dou­bly ionised oxy­gen. This emits a dis­tinc­tive green glow, more com­monly as­so­ci­ated with plan­e­tary neb­u­lae or com­pact ‘green pea’ gal­ax­ies. The dis­cov­ery will help re­searchers iden­tify and study gal­ax­ies dur­ing their cru­cial for­ma­tion stages 500 mil­lion years af­ter the Big Bang.

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.