2021
DOI: 10.48550/arxiv.2104.11174
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Modified Gravity and the Flux-weighted Gravity-Luminosity Relationship of Blue Supergiant Stars

Eva Sextl,
Rolf-Peter Kudritzki,
Jochen Weller
et al.

Abstract: We calculate models of stellar evolution for very massive stars and include the effects of modified gravity to investigate the influence on the physical properties of blue supergiant stars and their use as extragalactic distance indicators. With shielding and fifth force parameters in a similar range as in previous studies of Cepheid and tip of the red giant branch (TRGB) stars we find clear effects on stellar luminosity and flux-weighted gravity. The relationship between flux weighted gravity, g F ≡ g/T 4 eff… Show more

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