Results 21 to 30 of about 8,897 (294)

Chemo-dynamical Evolution of Galaxies

open access: yes, 2023
Stars are fossils that retain the history of their host galaxies. Elements heavier than helium are created inside stars and are ejected when they die. From the spatial distribution of elements in galaxies, it is therefore possible to constrain the physical processes during galaxy formation and evolution.
Kobayashi, Chiaki, Taylor, Philip
openaire   +2 more sources

Dynamical stability and galaxy evolution in LSB disk galaxies [PDF]

open access: yesAIP Conference Proceedings, 1997
We demonstrate that, due to their low surface mass density and large dark matter content, LSB disks are quite stable against the growth of global bar modes. However, they may be only marginally stable against local disk instabilities. We simulate a collision between an LSB and HSB galaxy and find that, while the HSB galaxy forms a strong bar, the ...
Mihos, C., McGaugh, S. S., Blok, E. de
openaire   +3 more sources

The Dynamics of Radio Galaxies and Double–Double Radio Galaxies [PDF]

open access: yesJournal of Astrophysics and Astronomy, 2011
11 pages, 4 figures, Diffuse Radio Plasma Conference proceedings (held in Raman Research Institute, Bangalore, India)
Konar, C.   +6 more
openaire   +3 more sources

Dynamical Blueprints for Galaxies [PDF]

open access: yesThe Astrophysical Journal, 2008
54 pages, 20 ...
Widrow, Lawrence M.   +2 more
openaire   +2 more sources

Refracted Gravity Solutions from Small to Large Scales

open access: yesAstronomy
If visible matter alone is present in the Universe, general relativity (GR) and its Newtonian weak field limit (WFL) cannot explain several pieces of evidence, from the largest to the smallest scales.
Valentina Cesare
doaj   +1 more source

Probing the Disk Kinematics of M31 with DESI

open access: yesEdinburgh Student Journal of Science
M31’s stellar rotation curve and disk line-of-sight dispersion is presented using kinematic data from a novel DESI M31 survey in combination with similar datasets.
Struan Stevenson
doaj   +1 more source

Triazine‐Trione Thermosets with High Processability for Scaffold Applications in Bone Tissue Engineering

open access: yesAdvanced Healthcare Materials, EarlyView.
Novel photo‐clickable triazine‐trione thermosets can be shaped and cured under mild conditions, including room and physiological temperatures. These materials are biocompatible and support osteogenic differentiation of bone marrow–derived mesenchymal stem cells on their surface.
Åshild Johansen   +7 more
wiley   +1 more source

Probing the Nonlinear Density Wave Theory of Spiral Galaxies by Baryonic Tully–Fisher Relation

open access: yesUniverse
The baryonic mass–velocity relation provides an important test of different galaxy dynamics models such as Lambda–cold dark matter (ΛCDM) and alternatives like Modified Newtonian Dynamics (MOND).
Miroslava Vukcevic   +2 more
doaj   +1 more source

Facile Bottom‐Up Assembly of Photonic Micropatterns via Surface‐Guided Colloidal Crystallization

open access: yesAdvanced Materials, EarlyView.
High‐resolution photonic micropatterns with vivid structural colors are fabricated through bottom‐up assembly, guided by surface‐dependent regioselective heterogeneous nucleation and crystal growth of colloidal particles. Full‐spectrum color tunability is achieved by controlling particle size and interparticle attraction, while in situ color mixing is ...
Yongseok Jung   +3 more
wiley   +1 more source

A machian model as potential alternative to dark matter halo thesis in galactic rotational velocity prediction

open access: yesFrontiers in Astronomy and Space Sciences
A novel axially symmetric metric is proposed to solve the Einstein field equations. This provides an analytical solution within the matter in the equatorial plane for any galaxy density profile.
Stephan Walrand
doaj   +1 more source

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