Astrophysical constraints and insights on extended relativistic gravity

Spanish Relativity Meeting: almost 100 years after Einstein's revolution

Mendoza, S.^1

Instituto de Astronomía, Universidad Nacional Autónoma de México, A.P. 70-264, México, Distrito Federal

04510, Mexico^1

关键词: Clusters of galaxies;    Einstein equivalence principle;    Gravitational field equations;    Gravitational interaction;    Gravitational lensing;    Gravitational theory;    Non-newtonian;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/600/1/012045/pdf
DOI  :  10.1088/1742-6596/600/1/012045

来源: IOP

【 摘 要 】

It is discussed how observations of gravitational lensing at scales of individual, groups and clusters of galaxies can be understood in terms of non-Newtonian gravitational interactions with a relativistic structure compatible with the Einstein Equivalence Principle. This result is derived on very general grounds without knowing the underlying structure of the gravitational field equations. As such, any developed gravitational theory built to deal with these astrophysical scales (relevant to MOND phenomenology) needs to reproduce those results.