Australian-led astronomers find the absolute most star that is iron-poor the Galaxy, hinting in the nature for the first stars into the Universe.
A newly discovered star that is ancient a record-low quantity of iron carries evidence of a course of even older stars, long hypothesised but assumed to have vanished.
In a paper published into the journal Monthly Notices for the Royal Astronomical Society: Letters, researchers led by Dr Thomas Nordlander of the ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) confirm the presence of an ultra-metal-poor giant that is red, located in the halo for the Milky Way, on the other side for the Galaxy about 35,000 light-years from Earth.
Dr Nordlander, through the Australian National University (ANU) node of ASTRO 3D, as well as colleagues from Australia, the united states and Europe, located the star utilizing the university’s dedicated SkyMapper Telescope during the Siding Spring s Observatory in NSW.
Spectroscopic analysis indicated that an iron was had by the star content of just one part per 50 billion.
“That’s like one drop of water in an Olympic pool that is swimming” explains Dr Nordlander. (more…)