Sydney: 340,000 Stars' DNA Interrogated in Search for Sun's Lost Siblings
Posted: Wed Apr 18, 2018 3:11 am
340,000 Stars' DNA Interrogated in Search for Sun's Lost Siblings
University of Sydney | 2018 Apr 18
Survey profiles 350,000 stars in search for Sun’s siblings
Australian National University | 2018 Apr 18
University of Sydney | 2018 Apr 18
Chemical clues could reveal starry clusters before the Big Bang
An Australian-led group of astronomers working with European collaborators has revealed the “DNA” of more than 340,000 stars in the Milky Way, which should help them find the siblings of the Sun, now scattered across the sky.
This is a major announcement from an ambitious Galactic Archaeology survey, called GALAH, launched in late 2013 as part of a quest to uncover the formulation and evolution of galaxies. When complete, GALAH will investigate more than a million stars.
The GALAH survey used the HERMES spectrograph at the Australian Astronomical Observatory’s (AAO) 3.9-metre Anglo-Australian Telescope near Coonabarabran, NSW, to collect spectra for the 340,000 stars.
The GALAH Survey today makes its first major public data release. ...
Survey profiles 350,000 stars in search for Sun’s siblings
Australian National University | 2018 Apr 18