Results 11 to 20 of about 1,242,731 (210)
Understanding galaxy rotation curves with Verlinde’s emergent gravity [PDF]
Classical and Quantum Gravity, 2022 Abstract We present the results from the analysis of galaxy rotation curves with Verlinde’s emergent gravity. We use the data in the Spitzer Photometry and Accurate Rotation Curves database, which contains a sample of 175 nearby disk galaxies with 3.6 µ
Youngsub Yoon +2 more
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Testing universal dark-matter caustic rings with galactic rotation curves
Physics Letters B, 2023 Infall of cold dark matter on a galaxy may result in caustic rings where the particle density is enhanced. They may be searched for as features in the galactic rotation curves.
Daniil Davydov, Sergey Troitsky
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Modeling the Rising Tails of Galaxy Rotation Curves [PDF]
Galaxies, 2019 It is well known, but under-appreciated in astrophysical applications, that it is possible for gravity to take on a life of its own in the form of Weyl-curvature-only metrics (note that we are referring to the Weyl-only solutions of ordinary General ...
Fan Zhang
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A Symmetric Ring Galaxy Model Explains the Rotation Curve of Galaxies
Applied Physics Research, 2023 This paper proposes a symmetric ring galaxy (SRG) model based on the general structure of galaxies. Based on this model, we have obtained results that are consistent with the actual observation results of the galaxy rotation curve, thus solving the problem of inconsistency between the observation results of the galaxy rotation curve and the expected ...
Zeng, Jiqing
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Testing CCC+TL Cosmology with Galaxy Rotation Curves
GalaxiesThis paper aims to explore whether astrophysical observations, primarily galaxy rotation curves, result from covarying coupling constants (CCC) rather than from dark matter.
Rajendra P. Gupta
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Extended universal rotational curve of spiral galaxies
Discover SpaceIn this work, we aim to advance the Universal Rotation Curve (URC) paradigm by leveraging new data and extending its observational domain. Building on previous studies that established the URC using optical rotation curves reaching the galaxy optical ...
Esha Bhatia +3 more
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Quantum modified inertia: application to galaxy rotation curves
European Physical Journal C: Particles and FieldsThis work explores modified inertia in the context of galactic dynamics by investigating the consequences of introducing bounds on acceleration. Building on earlier ideas related to maximal acceleration and quantum speed limits, an effective framework is
Jonathan Gillot
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The universal galaxy rotation curve
The Astrophysical Journal, 1991 From the analysis of an extended set of selected galaxy rotation curves, it is found that for a given luminosity the rotation curves of spiral galaxies within the optical radius are a universal function. This result implies strong systematic variations of both the amplitude and the profil of the circular velocity with luminosity faint (bright) galaxies
Persic, M., Salucci, P.
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Elongated Gravity Sources as an Analytical Limit for Flat Galaxy Rotation Curves [PDF]
Universe, 2021 The flattening of spiral-galaxy rotation curves is unnatural in view of the expectations from Kepler’s third law and a central mass. It is interesting, however, that the radius-independence velocity is what one expects in one less dimension. In our three-
Felipe J. Llanes-Estrada
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Many body gravity and the galaxy rotation curves [PDF]
European Physical Journal C: Particles and FieldsA novel theory was proposed earlier to model systems with thermal gradients, based on the postulate that the spatial and temporal variation in temperature can be recast as a variation in the metric.
S. Ganesh
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