Articles with "mond" as a keyword



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Modified Newtonian Dynamics (MOND) as a Modification of Newtonian Inertia

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Published in 2017 at "Journal of Astrophysics and Astronomy"

DOI: 10.1007/s12036-017-9479-0

Abstract: We present a modified inertia formulation of Modified Newtonian dynamics (MOND) without retaining Galilean invariance. Assuming that the existence of a universal upper bound, predicted by MOND, to the acceleration produced by a dark halo… read more here.

Keywords: dynamics mond; mond; modification newtonian; mond modification ... See more keywords
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The radial acceleration relation and a magnetostatic analogy in quasilinear MOND

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Published in 2018 at "New Journal of Physics"

DOI: 10.1088/1367-2630/aaca23

Abstract: Recently a remarkable relation has been demonstrated between the observed radial acceleration in disk galaxies and the acceleration predicted on the basis of baryonic matter alone. Here we study this relation within the framework of… read more here.

Keywords: mond; acceleration relation; field; acceleration ... See more keywords

A fundamental test for MOND

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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staa890

Abstract: The Radial Acceleration Relation (RAR) shows a strong correlation between two accelerations associated to galaxy rotation curves. The relation between these accelerations is given by a nonlinear function which depends on an acceleration scale $a_\dagger$.… read more here.

Keywords: mond; fundamental test; acceleration scale; test mond ... See more keywords
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The radial acceleration relation and dark baryons in MOND

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Published in 2019 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stz1272

Abstract: Recent observations of rotationally supported galaxies show a tight correlation between the observed radial acceleration at every radius and the Newtonian acceleration generated by the baryonic mass distribution, the so-called radial acceleration relation (RAR). The… read more here.

Keywords: mond; dark baryons; acceleration relation; acceleration ... See more keywords
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A new formulation of the external field effect in MOND and numerical simulations of ultra-diffuse dwarf galaxies – application to NGC 1052-DF2 and NGC 1052-DF4

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Published in 2019 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stz1465

Abstract: The ultra-diffuse dwarf galaxy NGC 1052-DF2 (DF2) has ten (eleven) measured globular clusters (GCs) with a line-of-sight velocity dispersion of $\sigma=7.8^{+5.2}_{-2.2}\,$km/s ($\sigma=10.6^{+3.9}_{-2.3}\,$km/s). Our conventional statistical analysis of the original ten GCs gives $\sigma=8.0^{+4.3}_{-3.0}\,$km/s. The overall… read more here.

Keywords: ngc 1052; mond; formulation; ultra diffuse ... See more keywords
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NIHAO – XVIII. Origin of the MOND phenomenology of galactic rotation curves in a ΛCDM universe

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Published in 2019 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stz531

Abstract: The phenomenological basis for Modified Newtonian Dynamics (MOND) is the radial-acceleration-relation (RAR) between the observed acceleration, $a=V^2_{rot}(r)/r$, and the acceleration accounted for by the observed baryons (stars and cold gas), $a_{bar}=V_{bar}^2(r)/r$. We show that the… read more here.

Keywords: rotation curves; mond; nihao xviii; scatter ... See more keywords
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MOND fiducial specific angular momentum of disc galaxies

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Published in 2021 at "Physical Review D"

DOI: 10.1103/physrevd.104.064030

Abstract: It is pointed out that MOND defines a fiducial specific angular momentum (SAM) for a galaxy of total (baryonic) mass M: jM(M) ≡ M(G/a0) ≈ 383(M/10M ) kpc km s−1. It plays important roles in… read more here.

Keywords: momentum; mond; angular momentum; disc ... See more keywords
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Can the ΛCDM model reproduce MOND-like behavior?

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Published in 2017 at "Physical Review D"

DOI: 10.1103/physrevd.96.124016

Abstract: It is usually believed that MOND can describe the galactic rotational curves with only baryonic matter and without any dark matter very well, while the $\Lambda$CDM model is expected to have difficulty in reproducing MOND-like… read more here.

Keywords: mond; mond like; like behavior; cdm model ... See more keywords
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Dark matter (energy) may be indistinguishable from modified gravity (MOND)

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Published in 2017 at "International Journal of Modern Physics D"

DOI: 10.1142/s0218271817430106

Abstract: For Newtonian dynamics to hold over galactic scales, large amounts of dark matter (DM) are required which would dominate cosmic structures. Accounting for the strong observational evidence that the universe is accelerating requires the presence… read more here.

Keywords: mond; matter energy; matter; dark matter ... See more keywords