Graviton mass evaluation with trajectories of bright stars at the Galactic Center
Апстракт
One could use trajectories of test particles to evaluate a gravitational potential. In particular, in the case of the Galactic Center one could use photon trajectories to analyze a shadow structure. Another way is to use bright stars near the Galactic Center to evaluate a gravitational potential and constrain parameters of a model for the Galactic Center. In particular, one could obtain constraints on parameters of black hole, stellar cluster and dark matter concentration. Earlier, we constrained parameters of Fr and a Yukawa potential from observational data for the S2 star trajectory. Now gravity theories with a massive graviton are a subject of intensive studies. People proposed different experimental ways to evaluate a graviton mass. Recently, the joint LIGO and VIRGO collaboration reported not only a discovery of gravitational waves and binary black holes, but the team claimed also that found a constraint on a graviton mass as 1.2 x 10(-22) eV. We show that an analysis of the S2 s...tar trajectory could constrain a graviton mass with a comparable accuracy and this constraint is consistent with LIGOs one.
Извор:
Journal of Physics: Conference Series, 2017, 798Финансирање / пројекти:
- Гравитација и структура космоса на великим скалама (RS-MESTD-Basic Research (BR or ON)-176003)
- NSF [HRD-1345219], NASA at NASA CCFASE [NNX09AV07A], CREST Centers (NCCU, Durham, NC, USA), ICTP - SEENET-MTP [PRJ-09]
Напомена:
- 2nd International Conference on Particle Physics and Astrophysics (ICPPA), Oct 11-14, 2016, Moscow, Russia
DOI: 10.1088/1742-6596/798/1/012081
ISSN: 1742-6588
WoS: 000403476900082
Scopus: 2-s2.0-85016323043
Колекције
Институција/група
VinčaTY - CONF AU - Zakharov, Alexander F. AU - Jovanović, Predrag AU - Borka, Duško AU - Borka Jovanović, Vesna PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7166 AB - One could use trajectories of test particles to evaluate a gravitational potential. In particular, in the case of the Galactic Center one could use photon trajectories to analyze a shadow structure. Another way is to use bright stars near the Galactic Center to evaluate a gravitational potential and constrain parameters of a model for the Galactic Center. In particular, one could obtain constraints on parameters of black hole, stellar cluster and dark matter concentration. Earlier, we constrained parameters of Fr and a Yukawa potential from observational data for the S2 star trajectory. Now gravity theories with a massive graviton are a subject of intensive studies. People proposed different experimental ways to evaluate a graviton mass. Recently, the joint LIGO and VIRGO collaboration reported not only a discovery of gravitational waves and binary black holes, but the team claimed also that found a constraint on a graviton mass as 1.2 x 10(-22) eV. We show that an analysis of the S2 star trajectory could constrain a graviton mass with a comparable accuracy and this constraint is consistent with LIGOs one. C3 - Journal of Physics: Conference Series T1 - Graviton mass evaluation with trajectories of bright stars at the Galactic Center VL - 798 DO - 10.1088/1742-6596/798/1/012081 ER -
@conference{ author = "Zakharov, Alexander F. and Jovanović, Predrag and Borka, Duško and Borka Jovanović, Vesna", year = "2017", abstract = "One could use trajectories of test particles to evaluate a gravitational potential. In particular, in the case of the Galactic Center one could use photon trajectories to analyze a shadow structure. Another way is to use bright stars near the Galactic Center to evaluate a gravitational potential and constrain parameters of a model for the Galactic Center. In particular, one could obtain constraints on parameters of black hole, stellar cluster and dark matter concentration. Earlier, we constrained parameters of Fr and a Yukawa potential from observational data for the S2 star trajectory. Now gravity theories with a massive graviton are a subject of intensive studies. People proposed different experimental ways to evaluate a graviton mass. Recently, the joint LIGO and VIRGO collaboration reported not only a discovery of gravitational waves and binary black holes, but the team claimed also that found a constraint on a graviton mass as 1.2 x 10(-22) eV. We show that an analysis of the S2 star trajectory could constrain a graviton mass with a comparable accuracy and this constraint is consistent with LIGOs one.", journal = "Journal of Physics: Conference Series", title = "Graviton mass evaluation with trajectories of bright stars at the Galactic Center", volume = "798", doi = "10.1088/1742-6596/798/1/012081" }
Zakharov, A. F., Jovanović, P., Borka, D.,& Borka Jovanović, V.. (2017). Graviton mass evaluation with trajectories of bright stars at the Galactic Center. in Journal of Physics: Conference Series, 798. https://doi.org/10.1088/1742-6596/798/1/012081
Zakharov AF, Jovanović P, Borka D, Borka Jovanović V. Graviton mass evaluation with trajectories of bright stars at the Galactic Center. in Journal of Physics: Conference Series. 2017;798. doi:10.1088/1742-6596/798/1/012081 .
Zakharov, Alexander F., Jovanović, Predrag, Borka, Duško, Borka Jovanović, Vesna, "Graviton mass evaluation with trajectories of bright stars at the Galactic Center" in Journal of Physics: Conference Series, 798 (2017), https://doi.org/10.1088/1742-6596/798/1/012081 . .