Constraining MOdified Gravity with the S2 Star
Riccardo Della MonicaDepartamento de Fisica Fundamental, Universidad de Salamanca, P. de la Merced, 37008 Salamanca, SpainIvan De MartinoDepartamento de Fisica Fundamental, Universidad de Salamanca, P. de la Merced, 37008 Salamanca, SpainMariafelicia De LaurentisDipartimento di Fisica, Universitá di Napoli “Federico II”, Complesso Universitario di Monte S. Angelo, Edificio G, Via Cinthia, I-80126 Napoli, Italy
2022en
ABI
Annotatsiya
We have used publicly available kinematic data for the S2 star to constrain the parameter space of MOdified Gravity. Integrating geodesics and using a Markov Chain Monte Carlo algorithm, we have provided the first constraint on the scales of the Galactic Centre for the parameter α of the theory, which represents the fractional increment of the gravitational constant G with respect to its Newtonian value. Namely, α≲0.662 at 99.7% confidence level (where α=0 reduces the theory to General Relativity).
Hali tarjima qilinmagan
Identifikatorlar
Iqtiboslar va manbalar
7 ta iqtibos0 ta foydalanilgan manba