Modified Dark Matter in Galaxies and Galaxy Clusters

Date
2017-12Author
Edmonds, Douglas
Farrah, D.
Minic, Djordje
Ng, Y. J.
Takeuchi, Tatsu
Metadata
Show full item recordAbstract
Modified Dark Matter (MDM) is a phenomenological model of dark matter, inspired by gravitational thermodynamics, that naturally accounts for the universal acceleration constant observed in galactic rotation curve data; a critical acceleration related to the cosmological constant, $\Lambda$, appears as a phenomenological manifestation of MDM. We show that the resulting mass profiles, which are sensitve to $\Lambda$, are consistent with observations at the galactic and galaxy cluster scales. Our results suggest that dark matter mass profiles contain information about the cosmological constant in a non-trivial way.