514 citations · 4.4k across the 62 of their papers we have counts for
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Photospheric diagnostics of core helium burning in giant stars
Keith Hawkins, Yuan-Sen Ting, Hans-Walter Rix
Core helium burning primary red clump (RC) stars are evolved red giant stars which are excellent standard candles. As such, these stars are routinely used to map the Milky Way or d…
Red clump stars and Gaia: Calibration of the standard candle using a hierarchical probabilistic model
Keith Hawkins, Boris Leistedt, Jo Bovy +1
Distances to individual stars in our own Galaxy are critical in order to piece together the nature of its velocity and spatial structure. Core helium burning red clump (RC) stars h…
Climbing the cosmic ladder with stellar twins in RAVE with Gaia
P. Jofre, G. Traven, K. Hawkins +17
We apply the twin method to determine parallaxes to 232,545 stars of the RAVE survey using the parallaxes of Gaia DR1 as a reference. To search for twins in this large dataset, we…
The Gaia-ESO Survey: Galactic evolution of sulphur and zinc
S. Duffau, E. Caffau, L. Sbordone +48
Due to their volatile nature, when sulfur and zinc are observed in external galaxies, their determined abundances represent the gas-phase abundances in the interstellar medium. Thi…