Results 61 to 70 of about 64,819 (265)

Testing baryon-induced core formation in $\Lambda$CDM: A comparison of the DC14 and coreNFW dark matter halo models on galaxy rotation curves [PDF]

, 2017
Recent cosmological hydrodynamical simulations suggest that baryonic processes, and in particular supernova feedback after bursts of star formation, can alter the structure of dark matter haloes and transform primordial cusps into shallower cores.
F. Allaert, G. Gentile, M. B. S. Observatorium, Universiteit Gent, D. Physics, Astrophysics, V. U. Brussel   +6 more
semanticscholar   +1 more source

Comparing dark matter models, modified Newtonian dynamics and modified gravity in accounting for galaxy rotation curves [PDF]

, 2017
We compare six models (including the baryonic model, two dark matter models, two modified Newtonian dynamics models and one modified gravity model) in accounting for galaxy rotation curves.
X. Li 李, L. Tang 唐, H. Lin 林
semanticscholar   +1 more source

Kinematic and Dynamics of the Galaxy ESO 358-60

The Astrophysical Journal
We investigate the velocity field derived from H I measurements of the irregular galaxy ESO 358-60 using the velocity ring model (VRM) method. This technique, which assumes a coplanar disk, allows us to reconstruct coarse-grained maps of both radial and ...
Francesco Sylos Labini, Matteo Straccamore   +1 more
doaj   +1 more source

RC100: Rotation Curves of 100 Massive Star-forming Galaxies at z = 0.6–2.5 Reveal Little Dark Matter on Galactic Scales

The Astrophysical Journal, 2023
We analyze H α or CO rotation curves extending out to several galaxy effective radii for 100 massive, large, star-forming disk galaxies (SFGs) across the peak of cosmic galaxy star formation ( z ∼ 0.6–2.5), more than doubling the previous sample ...
A. Nestor Shachar, S. H. Price, N. M. Förster Schreiber, R. Genzel, T. T. Shimizu, L. J. Tacconi, H. Übler, A. Burkert, R. I. Davies, A. Dekel, R. Herrera-Camus, L. L. Lee, D. Liu, D. Lutz, T. Naab, R. Neri, A. Renzini, R. Saglia, K. F. Schuster, A. Sternberg, E. Wisnioski, S. Wuyts   +21 more
doaj   +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

Advanced Robotics Research, EarlyView.
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, Phuoc Thien Phan, James Davies, Bibhu Sharma, Tianruo Guo, Chi Cong Nguyen, Nigel H. Lovell, Thanh Nho Do   +7 more
wiley   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source

A method for evaluating models that use galaxy rotation curves to derive the density profiles [PDF]

, 2016
There are some approaches, either based on General Relativity (GR) or modified gravity, that use galaxy rotation curves to derive the matter density of the corresponding galaxy, and this procedure would either indicate a partial or a complete elimination
'. O. D. Almeida, O. F. Piattella, D. Rodrigues   +2 more
semanticscholar   +1 more source

Galaxy rotation curves and dissipation

The 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

Substituent‐Based Modulation of Self‐Assembly and Immunogenicity of Amphipathic Peptides

Advanced Science, EarlyView.
This study systematically investigates how positional and subtle changes, such as substituents on the phenyl ring attached to short amphipathic peptides, influence their self‐assembly, fibril morphology, and immunogenic responses. ABSTRACT Self‐assembled peptide‐based biomaterials provide versatile platforms for biomedical uses, featuring customizable ...
Anirban Das, Ushasi Pramanik, Elise M. Brown, Chih‐Yun Liu, Huan Gong, Jonathan Fascetti, Mark Gibson, Samuel Stealey, Silviya P. Zustiak, Cory Berkland, Piyoosh Sharma, Meredith E. Jackrel, Mark A. White, Jai S. Rudra   +13 more
wiley   +1 more source

A NEW ESTIMATOR OF THE DECELERATION PARAMETER FROM GALAXY ROTATION CURVES [PDF]

, 2016
The nature of dark energy may be probed by the derivative $Q=\left.dq(z)/dz\right|_0$ at redshift $z=0$ of the deceleration parameter $q(z)$. It is probably static if $Q 2.5$, supporting $\Lambda$CDM or, respectively, $\Lambda=(1-q)H^2$, where $H ...
M. Putten
semanticscholar   +1 more source