Speaker
Description
Exoplanet surveys suggest that both stellar metallicity and mass play a key role in the formation of giant planets. However, measuring accurate and precise stellar masses in retired (subgiants and red giants) stars is more difficult than in main-sequence stars, raising concerns about the reliability of studies linking stellar mass to planet formation. For nearly a decade, the uncertainty in measuring stellar mass of evolved stars has cast doubt on the observed correlation between mass and planet occurrence, as this relationship may be influenced by systematics stemming from the stellar models and input physics employed. In this work, we examine the systematic uncertainties in the recovered masses of a large sample of evolved stars observed by the Transiting Exoplanet Survey Satellite (TESS), resulting from the use of different stellar grids. We also fully explore the physical parameters that contribute to the systematic shifts in the recovered masses.
| Stream | Science |
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