Results 31 to 40 of about 455,148 (185)

From Flow to Function: Using Different Static Mixers to Fabricate Microarchitected Materials Via Chaotic Printing

Advanced Science, Volume 13, Issue 55, 5 October 2026.
Complex microarchitectures emerge from simple flow‐driven transformations as static mixers iteratively reorient and split material domains. Coupled with diverse deposition strategies, chaotic printing provides an accessible platform for fabricating architected materials that support biologically and chemically relevant processes. ABSTRACT Nature builds
Edna Johana Bolívar‐Monsalve, Carlos Fernando Ceballos‐González, Diego Alonso Quevedo‐Moreno, Irving Isaí Rendón‐Moreno, Ariel Cantoral‐Sánchez, Héctor Ambriz‐González, Mario Moisés Alvarez, Grissel Trujillo‐de Santiago   +7 more
wiley   +1 more source

VLA continuum observations of barred spiral galaxies [PDF]

, 1987
Observations of NGC 613, NGC 1300, NGC 4314 and NGC 5383 using the VLA at frequencies of 1464.9 and 4885.1 MHz are reported. These objects are a subset of galaxies from which radio emission were searched.
Pismis, P., Garcia-Barreto, J. Antonio
core  

Dark Matter Halo Concentration and the Evolution of Spiral Structure in N-Body, Barred Spiral Galaxies [PDF]

, 2015
Motivated by the evidence of relationships between pitch angle (the tightness of spiral arm structure in the disk), P, and various indicators of central mass concentration, as well as the theoretical relationship between halo mass concentration and the ...
Berlanga Medina, Jazmin Esmeralda
core   +3 more sources

Cluster-centric trends in bar size and pattern speed: The case of Abell 2199

Astronomy & Astrophysics
Aims. We investigate how the environment of a dynamically unrelaxed galaxy cluster influences the structure and dynamics of stellar bars. In particular, we examine cluster-centric variations in normalised bar size and bar pattern speed in Abell 2199 ...
Watts Chandan, Barway Sudhanshu, Das Mousumi, Łokas Ewa L.   +3 more
doaj   +1 more source

Influence of Dynamical Friction on the Unstable Manifolds of Lagrange Points in Barred Galaxies

Astronomische Nachrichten, Volume 347, Issue 8, October 2026.
ABSTRACT Some time ago the idea has been proposed that rings and spirals in barred galaxies are shaped by the unstable manifolds of the Lagrange points sitting near the ends of the bar. The topic of the present article is an investigation of whether the numerical support for this suggestion can be improved by the inclusion of dynamical friction into ...
Christof Jung
wiley   +1 more source

What determines the sizes of bars in spiral galaxies? [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
ABSTRACT I use volume- and mass-limited subsamples and recently published data from the Spitzer Survey of Stellar Structure in Galaxies (S4G) to investigate how the size of bars depends on galaxy properties. The known correlation between bar semimajor axis a and galaxy stellar mass (or luminosity) is actually bimodal: for $\log \, (M_ ...
openaire   +3 more sources

SDSS-IV MaNGA: Stellar Population Gradients Within Barred Galaxies [PDF]

, 2019
Bars in galaxies are thought to stimulate both inflow of material and radial mixing along them. Observational evidence for this mixing has been inconclusive so far however, limiting the evaluation of the impact of bars on galaxy evolution.
Knapen, Johan Hendrik, Knapen, Johan H, Brownstein, Joel, Fraser-McKelvie, Amelia, Andrews, Byron, Knapen, Johan H., Andrews, Brett H., Riffel, Rogério, Brownstein, Joel R., Schaefer, Adam, Kruk, Sandor J., Masters, K.L., Merrifield, Michael R., Drory, Niv, Peterken, Thomas, Peterken, Thomas G., Kruk, Sandor, Krawczyk, Coleman, Aragón-Salamanca, Alfonso, Smethurst, Rebecca, Schaefer, Adam L., Andrews, Brett, Merrifield, Michael, Smethurst, Rebecca J., Riffel, Rogerio A., Masters, Karen, Krawczyk, Coleman M.   +26 more
core   +3 more sources

ALMA FACTS. III. High-resolution CO(2–1)/CO(1–0) Maps of Twelve Nearby Galaxies

The Astrophysical Journal
We present early results from a high-resolution analysis (∼100–200 pc) of the CO(2–1)/CO(1–0) line ratio in 12 nearby galaxies. We use new Atacama Large Millimeter/submillimeter Array (ALMA) CO(1–0) observations from the Fundamental CO(1–0) Transition ...
Amanda M Lee, Jin Koda, Fumi Egusa, Akihiko Hirota, Shinya Komugi, Fumiya Maeda, Tsuyoshi Sawada   +6 more
doaj   +1 more source

Forces Attributed to Dark Matter May Originate from Entangled Particles as Seen in the Shape Of Galaxies Formed by Grbs

International Journal of Engineering and Management Sciences, 2018
Recently, it has been suggested that entangled particles may be connected by a wormhole. If that is right, what is the distance between them we have to take into account when applying Newton's law of universal gravitation to these particles?
Sándor Buglyó
doaj   +1 more source

Genome‐Wide Identification and Structural Characterization of Secondary Metabolite Biosynthetic Gene Clusters in African Baobab (Adansonia digitata)

Chemistry &Biodiversity, Volume 23, Issue 10, October 2026.
Genome‐wide computational analysis of the African baobab (Adansonia digitata) identifies 50 candidate biosynthetic gene clusters spanning terpene, polyketide, cyclopeptide, and lignan pathways, including nine BURP‐domain clusters linked to putative chemical defense.
Ahmed A. Elshikh, Ahmed S. Kabbashi, Imtenan M. Musa   +2 more
wiley   +1 more source