Finite temperature makes theoretical white dwarf models in scalar-tensor gravity larger at the same mass, creating a degeneracy with modified gravity signatures.
White dwarf cooling via gravity portals
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abstract
We investigate the impact of gravity portal to properties of white dwarfs, such as equation-of-state as well as cooling time. We find that the interaction between dark matter spin-zero bosons and electrons in the mean field approximation softens the equation-of-state, and the object coolers down slower compared to the usual case.
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Temperature effects on white dwarfs in modified gravity
Finite temperature makes theoretical white dwarf models in scalar-tensor gravity larger at the same mass, creating a degeneracy with modified gravity signatures.