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The GALAH survey: unresolved triple Sun-like stars discovered by the Gaia mission

Cotar, K.; Zwitter, T.; Traven, Gregor; Kos, J.; Asplund, Martin; Bland-Hawthorn, Joss; Buder, Sven; D'Orazi, Valentina; De Silva, Gayandhi M.; Lin, Jane; Martell, Sarah; Sharma, Sanjib; Simpson, Jeffrey D.; Nordlander, Thomas

Description

The latest Gaia data release enables us to accurately identify stars that are more luminous than would be expected on the basis of their spectral type and distance. During an investigation of the 329 best solar twin candidates uncovered among the spectra acquired by the GALAH survey, we identified 64 such overluminous stars. In order to investigate their exact composition, we developed a data-driven methodology that can generate a synthetic photometric signature and spectrum of a single star....[Show more]

CollectionsANU Research Publications
Date published: 2019-05-21
Type: Journal article
URI: http://hdl.handle.net/1885/232558
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stz1397
Access Rights: Open Access

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