Results 91 to 100 of about 1,242,731 (210)

Central Rotation Curves of Galaxies

open access: yes, 2000
4 pages, 4 figures, in "Galaxy Disks and Disk Galaxies", ASP Conf. Series, Vatical Conf. Rome 2000, eds. J.
openaire   +2 more sources

Evidence of a flat outer rotation curve in a starbursting disk galaxy at z=1.6 [PDF]

open access: yes, 2019
Observations of the baryon to dark matter fraction in galaxies through cosmic time are a fundamental test for galaxy formation models. Recent observational studies have suggested that some disk galaxies at z>1 host declining rotation curves, in ...
Drew, Patrick Michael
core   +1 more source

Enhancing System Dynamics Education Through Smartphone Sensor‐Based At‐Home Experiments

open access: yesComputer Applications in Engineering Education, Volume 34, Issue 6, November 2026.
ABSTRACT The widespread use of smartphones among college students, combined with the sophisticated sensors these devices contain, enables their use as portable, low‐cost measurement systems when paired with simple physical setups. Such at‐home engineering experiments offer an engaging and flexible learning environment that can enhance students ...
Musa K. Jouaneh
wiley   +1 more source

Galaxy rotation curves and dissipation

open access: yesThe Astrophysical Journal, 1989
Une theorie est proposee pour expliquer la tendance des galaxies a disque a manifester des vitesses rotationnelles constantes en considerant l'hypothese suivant laquelle la dissipation d'energie est le facteur principal qui determine les formes finales des galaxies a disque.
openaire   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

open access: yesAdvanced Robotics Research, Volume 2, Issue 5, October 2026.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino   +7 more
wiley   +1 more source

Signatures of galaxy-cluster interactions: Spiral galaxy rotation curve asymmetry, shape, and extent [PDF]

open access: yes, 2001
Artículo de publicación ISIThe environmental dependencies of the characteristics of spiral galaxy rotation curves are studied in this work. We use our large, homogeneously collected sample of 510 cluster spiral galaxy rotation curves to test the claim ...
Giovanelli, Riccardo   +4 more
core   +1 more source

Observational Biases on Rotation Curves from Integral Field Unit Data at Cosmic Noon

open access: yesThe Astrophysical Journal
Through 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
doaj   +1 more source

Mass Distribution in Rotating Thin-Disk Galaxies According to Newtonian Dynamics

open access: yesGalaxies, 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

Comparison of HMG and Flat Rotation Velocities Inferred from Galaxy–Galaxy Weak Lensing

open access: yesThe Astrophysical Journal
Despite the success of dark matter models, unresolved issues require exploring alternatives such as modified gravity theories. In this context, we examine the compatibility of the hyperconical modified gravity (HMG) with galaxy rotation curves inferred ...
Robert Monjo
doaj   +1 more source

Rotation Curves and Gravitational Lensing in Four Isolated Galaxies: A Comparison Between MOND and the κ-Model

open access: yesUniverse
Galaxy rotation curves alone do not provide a decisive test between dark matter and phenomenological alternatives. We examine four isolated SPARC galaxies for which resolved rotation curves and weak-lensing constraints provide a useful test of the κ ...
Gianni Pascoli
doaj   +1 more source

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