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Asteroseismic masses of retired planet-hosting A-stars using SONG

Stello, Dennis; Huber, D; Grundahl, Frank; Lloyd, J P; Ireland, Michael; Casagrande, Luca; Fredslund, Mads; Bedding, T. R.; Palle, Pere L.; Antoci, Victoria; Kjeldsen, H; Christensen-Dalsgaard, J


To better understand how planets form, it is important to study planet occurrence rates as a function of stellar mass. However, estimating masses of field stars is often difficult. Over the past decade, a controversy has arisen about the inferred occurrence rate of gas-giant planets around evolved intermediate-mass stars – the so-called ‘retired A-stars’. The high masses of these red-giant planet hosts, derived using spectroscopic information and stellar evolution models, have been called into...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stx2295


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