Testing Modified Gravity with Globular Cluster Velocity Dispersions
نویسندگان
چکیده
منابع مشابه
Testing Modified Gravity with Globular Cluster Velocity Dispersions
Globular clusters (GCs) in the Milky Way have characteristic velocity dispersions that are consistent with the predictions of Newtonian gravity, and may be at odds with Modified Newtonian Dynamics (MOND). We discuss a modified gravity (MOG) theory that successfully predicts galaxy rotation curves, galaxy cluster masses and velocity dispersions, lensing, and cosmological observations, yet produc...
متن کاملCosmology using Cluster Internal Velocity Dispersions
We compare the cumulative distribution of internal velocity dispersions of galaxy clusters,N(> σv), for a large observational sample to those obtained from a set of N– body simulations that we run for seven COBE–normalized cosmological scenarios. They are: the standard CDM (SCDM) and a tilted (n = 0.85) CDM (TCDM) model, a cold+hot DM (CHDM) model with Ων = 0.25, two low–density flat CDM (ΛCDM)...
متن کاملar X iv : 0 70 8 . 19 35 v 3 [ as tr o - ph ] 2 7 A ug 2 00 7 Testing modified gravity with globular cluster velocity dispersions
Globular clusters (GCs) in the Milky Way have characteristic velocity dispersions that are consistent with the predictions of Newtonian gravity, and may be at odds with Modified Newtonian Dynamics (MOND) and possibly the cold dark matter model. We discuss a modified gravity (MOG) theory that can successfully model the velocity dispersions of GCs in the Galactic neighborhood. MOG produces veloci...
متن کاملar X iv : 0 70 8 . 19 35 v 2 [ as tr o - ph ] 1 6 A ug 2 00 7 Testing modified gravity with globular cluster velocity dispersions
Globular clusters in the Milky Way have characteristic velocity dispersions that are consistent with the predictions of Newtonian gravity, and may be at odds with Modified Newtonian Dynamics (MOND) and possibly the cold dark matter model. We discuss a modified gravity (MOG) theory that can successfully model the velocity dispersions of GCs in the Galactic neighborhood. MOG produces velocity dis...
متن کاملar X iv : 0 70 8 . 19 35 v 1 [ as tr o - ph ] 1 4 A ug 2 00 7 Testing modified gravity with globular cluster velocity dispersions
Globular clusters in the Milky Way have characteristic velocity dispersions that are consistent with the predictions of Newtonian gravity, and may be at odds with Modified Newtonian Dynamics (MOND) and possibly the cold dark matter model. We discuss a modified gravity (MOG) theory that can successfully model the velocity dispersions of GCs in the Galactic neighborhood. MOG produces velocity dis...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2008
ISSN: 0004-637X,1538-4357
DOI: 10.1086/587926