Constraining a disformal Schwarzschild black hole in DHOST theories with
the orbit of the S2 star
Constraining a disformal Schwarzschild black hole in DHOST theories with
the orbit of the S2 star
With the observed data of the S2 orbit around the black hole Sgr A$^*$ and the Markov Chain Monte Carlo method, we make a constraint on parameters of a disformal Schwarzschild black hole in quadratic degenerate higher-order scalar-tensor (DHOST) theories. This black hole belongs to a class of non-stealth solutions …