The stars, found near the center of the Milky Way, are surprisingly pure but contain material from an even earlier star, which died in an enormous explosion called hypernova.
The discovery and analysis of the nine pure stars challenges current theories about the environment of the early Universe from which these stars formed.
"The stars have surprisingly low levels of carbon, iron and other heavy elements, which suggests the first stars might not have exploded as normal supernovae," said Ms Howes.
"Perhaps they ended their lives as hypernovae - poorly understood explosions of probably rapidly rotating stars producing 10 times as much energy as normal supernovae." Project leader Professor Martin Asplund, from ANU Research School of Astronomy and Astrophysics said finding such rare relic stars amongst the billions of stars in the Milky Way centre was like finding a needle in a haystack.
"The ANU Sky Mapper telescope has a unique ability to detect the distinct colours of anaemic stars - stars with little iron - which has been vital for this search," said Professor Asplund.Following the team's discovery in 2014 of an extremely old star on the edge of the Milky Way, the team focused on the dense central parts of the galaxy, where stars formed even earlier. This dating game starts with you having crashed, but lucky enough, and you’ve been rescued by a ship that is full of hot anime girls. Besides the building of the stats, meeting the girls and collecting of resources, there are other things to be discovered: many missions, unrevealed secrets, fighting and other challenges. You can found Enigma planet, for example, very scary! You will enjoy the dynamics of this Galaxy Angel Sim so much. Not to mention the epic style maps to use for your quests.
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