Bounds on $\hat{I}›$ at the Galactic Center

Prajwal Hassan Puttasiddappa, Muzammil Mushtaq, Willian Ramirez +1

We constrain the cosmological constant $\hat{I}›$ using astrometric and spectroscopic observations of the S2, S1, and S14 stars orbiting Sgr A${}^{\ast }$. The stellar motion is modelled by nume…