Open AccessRevisiting two well studied galaxy samples using alternative gravity
Author(s) -
James O’Brien,
Thomas L. Chiarelli,
William M. Kerin,
Jon Belanger
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1956/1/012003
Subject(s) - galaxy rotation curve , gravitation , formalism (music) , galaxy , physics , theoretical physics , dark matter , observational study , astrophysics , classical mechanics , galaxy formation and evolution , mathematics , statistics , art , visual arts , musical
In the last few years, alternative gravity theories have seen increased interest due to the lack of observational evidence of dark matter. Further, new empirical patterns found in rotation curve data such as the Radial Acceleration Rule (RAR) have given new testable features for gravitational theories. In this paper, we revisit two popular surveys of galaxies (Randriamampandry et al 2013 and Bottema et al 2015) which when published were shown to be problematic for alternative gravity. Here, we apply the most recent observational parameters to the surveys and provide fits of Conformal Gravity, MOND as well as the RAR rotation curve formalism and show how these theories can apply to the new findings. We also provide the fits to the RAR and Tully-Fisher relation for each theory and discuss how the RAR may allow for some confining of parameters in the fitting procedure.