Testing asteroseismology with Gaia DR2: Hierarchical Models & the Red Clump

Bb1020684e201eef0a2b34f8f7ab214d?s=47 Oliver Hall
December 17, 2018

Testing asteroseismology with Gaia DR2: Hierarchical Models & the Red Clump

This presentation, which I gave at the December 2018 Birmingham-Warwick Science Meet-Up, is an update to a previous talk given at KASC/TASC in July 2018 (https://speakerdeck.com/ojhall94/testing-asteroseismology-with-gaia-dr2-luminosity-of-the-red-clump).

We use hierarchical models to constrain a population of Red Clump stars in both asteroseismic and Gaia data. We suggest a shift of ~-100K to temperatures used in the asteroseismic analysis will find an agreement for the luminosity of the Red Clump for both the Gaia data and the seismic data.

Hall et al. 2019 is submitted pending review.

Bb1020684e201eef0a2b34f8f7ab214d?s=128

Oliver Hall

December 17, 2018
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