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The GALAH survey: Verifying abundance trends in the open cluster M67 using non-LTE modelling

Gao, Xudong; Lind, Karin; Amarsi, Anish M; Buder, Sven; Dotter, Aaron; Nordlander, Thomas; Asplund, Martin; Bland-Hawthorn, Joss; De Silva, Gayandhi; D'Orazi, Valentina; Freeman, Kenneth; Kos, Janez; Lewis, Geraint; Lin, Jane; Martell, Sarah; Schlesinger, Katharine; Sharma, Sanjib; Simpson, Jeffrey D.; Zucker, Daniel B.; Zwitter, Tomaz; Da Costa, Gary; Anguiano, Borja; Horner, Jonathan; Hyde, Elaina A.; Kafle, Prajwal R.; Nataf, David M.; Reid, Warren; Stello, Dennis; Ting, Yuan-Sen; the GALAH collaboration


Open cluster members are coeval and share the same initial bulk chemical composition. Consequently, differences in surface abundances between members of a cluster that are at different evolutionary stages can be used to study the effects of mixing and internal chemical processing. We carry out an abundance analysis of seven elements (Li, O, Na, Mg, Al, Si, and Fe) in 66 stars belonging to the open cluster M67, based on high resolution GALAH spectra, 1D MARCS model atmospheres, and non-local...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/MNRAS/STY2414
Access Rights: Open Access


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