Graviton mass bounds from an analysis of bright star trajectories at the Galactic Center
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In February 2016 the LIGO and VIRGO collaboration reported the discovery of gravitational waves in merging black holes, therefore, the team confirmed GR predictions about an existence of black holes and gravitational waves in the strong gravitational field limit. Moreover, in their papers the joint LIGO and VIRGO team presented an upper limit on graviton mass such as m(g) LT 1.2 x 10(-22) eV (Abbott et al. 2016). So, the authors concluded that their observational data do not show any violation of classical general relativity. We show that an analysis of bright star trajectories could constrain graviton mass with a comparable accuracy with accuracies reached with gravitational wave interferometers and the estimate is consistent with the one obtained by the LIGO and VIRGO collaboration. This analysis gives an opportunity to treat observations of bright stars near the Galactic Center as a useful tool to obtain constraints on the fundamental gravity law such as modifications of the Newton ...gravity law in a weak field approximation. In that way, based on a potential reconstruction at the Galactic Center we obtain bounds on a graviton mass.
Source:EPJ Web of Conferences, 2017, 138
- Gravitation and the large scale structure of the Universe (RS-176003)
- NSF [HRD-1345219], NASA at NASA CCFASE [NNX09AV07A], NSF CREST Centers (NCCU, Durham, NC, USA), ICTP - SEENET-MTP [PRJ-09]
- 23rd International Baldin Seminar on High Energy Physics Problems - Relativistic Nuclear Physics and Quantum Chromodynamics, Sep 19-24, 2016, Dubna, Russia