MONG: An extension to galaxy clusters
- Title
- MONG: An extension to galaxy clusters
- Creator
- Rebecca L.; Kenath A.; Sivaram C.
- Description
- The presence of dark matter (DM), though well established by indirect evidence, is yet to be observed directly. Various DM detection experiments running for several years have yielded no positive results. In view of these negative results, we had earlier proposed alternate models by postulating a minimum gravitational field strength (minimum curvature) and a minimum acceleration. These postulates led to the modified Newtonian dynamics and modified Newtonian gravity (MONG). The observed flat rotation curves of galaxies were also accounted for through these postulates. Here, we extend these postulates to galaxy clusters and model the dynamical velocity-distance curve for a typical cluster such as the Virgo cluster. The radial velocities of galaxies in the Virgo cluster are also obtained through this model. Observations show an inconsistency in the Hubble flow at a mean cluster distance of 17 Mpc, which is expected in regions of high matter density. This decrease in velocity is predicted by our model of modified gravity (MONG). The radial velocity versus distance relation for galaxies in the Virgo cluster obtained using MONG is in agreement with observations. 2022 World Scientific Publishing Company.
- Source
- Modern Physics Letters A, Vol-37, No. 13
- Date
- 2022-01-01
- Publisher
- World Scientific
- Subject
- Dark matter; galaxy clusters; modification of Newtonian dynamics; modification of Newtonian gravity
- Coverage
- Rebecca L., Department of Physics, Christ Junior College, Karnataka, Bengaluru, 560029, India, Department of Physics and Electronics, Christ (Deemed to Be University), Karnataka, Bengaluru, 560029, India; Kenath A., Department of Physics and Electronics, Christ (Deemed to Be University), Karnataka, Bengaluru, 560029, India; Sivaram C., Indian Institute of Astrophysics, Karnataka, Bengaluru, 560034, India
- Rights
- All Open Access; Green Open Access
- Relation
- ISSN: 2177323; CODEN: MPLAE
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Rebecca L.; Kenath A.; Sivaram C., “MONG: An extension to galaxy clusters,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 25, 2025, https://archives.christuniversity.in/items/show/15109.