Results 101 to 110 of about 64,819 (265)
Rotation curves of galaxies in GR
, 2023 It has been suggested that the observed flat rotation curves of disk galaxies can be a peculiar effect of General Relativity (GR) rather than evidence for the presence of dark matter (DM) halos in Newtonian gravity. In Ciotti (2022) the problem has been quantitatively addressed by using the well known weak-field, low-velocity gravitomagnetic limit of ...
openaire +2 more sources
The universal rotation curve of dwarf disc galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 We use the concept of the spiral rotation curves universality to investigate the luminous and dark matter properties of the dwarf disc galaxies in the local volume (size $\sim11$ Mpc). Our sample includes 36 objects with rotation curves carefully selected from the literature.
Karukes E. V., Salucci P.
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Marine Mammal Science, Volume 42, Issue 2, April 2026.ABSTRACT Modeling a species' ecology and abundance provides important insights into its habitat preferences, population trends, and distribution. Here, we studied how environmental factors relate to common dolphin (Delphinus delphis) density in waters off mainland Portugal.
Miguel P. Martins +4 more
wiley +1 more source
Effects of spacetime anisotropy on the galaxy rotation curves [PDF]
, 2013 The observations on galaxy rotation curves show significant discrepancies from the Newtonian theory. This issue could be explained by the effect of the anisotropy of the spacetime.
Z. Chang +4 more
semanticscholar +1 more source
Mass Distribution in Rotating Thin-Disk Galaxies According to Newtonian Dynamics
Galaxies, 2014 An accurate computational method is presented for determining the mass distribution in a mature spiral galaxy from a given rotation curve by applying Newtonian dynamics for an axisymmetrically rotating thin disk of finite size with or without a central ...
James Q. Feng, C. F. Gallo
doaj +1 more source
A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring
Advanced Science, Volume 13, Issue 15, 13 March 2026.Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo +4 more
wiley +1 more source
Annalen der Physik, Volume 538, Issue 3, March 2026.Carrollian Reissner‐Nordström black holes are investigated through fermionic tunneling, entropy‐corrected thermodynamics, and plasma‐modified gravitational lensing. The generalized uncertainty principle introduces minimal‐length corrections to the Hawking temperature, while the combined Barrow‐Exponential entropy reveals smooth thermodynamic crossovers
Erdem Sucu, İzzet Sakallı, Yusuf Sucu
wiley +1 more source
Observational Biases on Rotation Curves from Integral Field Unit Data at Cosmic Noon
The Astrophysical JournalThrough studying rotation curves, which depict how the velocity of the stars and gas changes with distance from the center of a galaxy, it has been confirmed that dark matter dominates galaxies’ outer regions, as their rotation curve remains flat ...
Amanda E. Araujo-Carvalho +4 more
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Dark Matter, Rotation Curves, and the Morphology of Galaxies [PDF]
, 2021 Kirill Zatrimaylov
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A New Padé Approach to Modeling Wormholes in Dekel‐Zhao Dark Matter Halos
Annalen der Physik, Volume 538, Issue 3, March 2026.A matter‐first Padé strategy is introduced to build traversable wormholes from prescribed dark‐matter halos. Rational Padé fits approximately the Dekel–Zhao density and are analytically integrated to obtain a shape function that exactly reproduces the intended matter content, avoiding spurious poles of geometry‐first schemes.
Jonathan Alves Rebouças +4 more
wiley +1 more source