Current data on the globular cluster Palomar 14 are not inconsistent with MOND

Abstract

Certain types of globular clusters have the very important property that the predictions for their kinematics in the Newtonian and modified Newtonian dynamics (MOND) contexts are divergent. Here, we caution the recent claim that the stellar kinematics data (using 17 stars) of the globular cluster Palomar 14 are inconsistent with MOND. We compare the observations to the theoretical predictions using a Kolmogorov-Smirnov test, which is appropriate for small samples. We find that, with the currently available data, the MOND prediction for the velocity distribution can only be excluded with a very low confidence level, clearly insufficient to claim that MOND is falsified.

Research note accepted for publication in A&A

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Cited by in corpus (22)

• Modified Newtonian Dynamics (MOND): Observational Phenomenology and Relativistic Extensions
• The globular cluster NGC 2419: a crucible for theories of gravity
• Direct N-body simulations of globular clusters: (I) Palomar 14
• Testing Newtonian gravity with distant globular clusters: NGC1851 and NGC1904
• Stellar streams as gravitational experiments II. Asymmetric tails of globular cluster streams
• The velocity dispersion and mass function of the outer halo globular cluster Palomar 4
• Polytropic model fits to the globular cluster NGC 2419 in Modified Newtonian Dynamics
• Current data on the globular cluster Palomar 14 are not inconsistent with MOND
• Modifying Gravity: You Can't Always Get What You Want
• Mass segregation in the outer halo globular cluster Palomar 14
• Distant star clusters of the Milky Way in MOND
• The dynamical phase transitions of stellar systems and the corresponding kinetimacs
• A universal velocity dispersion profile for pressure supported systems: evidence for MONDian gravity across 7 orders of magnitude in mass
• A Monte Carlo analysis of the velocity dispersion of the globular cluster Palomar 14
• A Test of MONDian Gravity in $\sim$300 pressure supported elliptical galaxies from the MaNGA survey
• Is the distant globular cluster Pal 14 in a deep-freeze?
• The MOND External Field Effect on the Dynamics of the Globular Clusters: General Considerations and Application to NGC 2419
• Application of three-body stability to globular clusters: II. Observed velocity dispersions
• Gas expulsion in MOND: the possible origin of diffuse globular clusters and ultra-faint dwarf galaxies
• Testing modified gravity with globular clusters: the case of NGC 2419
• Observational dynamics of low-mass stellar systems
• Testing QUMOND theory with Galactic globular clusters in a weak external field