Results 91 to 100 of about 154,367 (172)
Chemical enrichment in isolated barred spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 16 pages, 11 figures, accepted for publication in ...
Hugo Martel +4 more
openaire +2 more sources
Do Strong Bars Exhibit Strong Noncircular Motions?
The Astrophysical JournalGalactic bars induce characteristic motions deviating from pure circular rotation, known as noncircular motions. As bars are nonaxisymmetric structures, stronger bars are expected to show stronger noncircular motions.
Taehyun Kim +6 more
doaj +1 more source
Computer Folding of Parallel DNA G‐Quadruplex: Hitchhiker's Guide to the Conformational Space
Journal of Computational Chemistry, Volume 46, Issue 1, January 5, 2025.This study presents a novel computational protocol for folding guanine quadruplexes (GQs) from single‐strand conformation to their native state. Utilizing two enhanced sampling techniques, the protocol models multichannel folding pathways, elucidating diverse intermediates and mechanisms.
Michal Janeček +7 more
wiley +1 more source
Molecular Gas Kinematics in Barred Spiral Galaxies [PDF]
The Astrophysical Journal, 1999 To quantify the effect that bar driven mass inflow can have on the evolution of a galaxy requires an understanding of the dynamics of the inflowing gas. In this paper we study the kinematics of the dense molecular gas in a set of seven barred spiral galaxies to determine which dynamical effects dominate.
Kartik Sheth +2 more
openaire +4 more sources
ALMA-LEGUS. I. The Influence of Galaxy Morphology on Molecular Cloud Properties
The Astrophysical JournalWe present a comparative study of the molecular gas in two galaxies from the Legacy ExtraGalactic UV Survey (LEGUS) sample: barred spiral NGC 1313 and flocculent spiral NGC 7793.
Molly K. Finn +26 more
doaj +1 more source
Rings and spiral arms: are they coupled with bars? [PDF]
Proceedings of the International Astronomical Union (S355), 2020, 2019 Rings and spiral arms are distinctive features of many galaxies, and their properties are closely related to the disk dynamics. They are often associated to stellar bars, but the details of this connection are far from clear. We study the pitch angles of spiral arms and the frequency and dimensions of inner and outer rings as a function of disk ...
arxiv
Modular Tunable α‐Helical Peptide Hydrogels for Neuronal Cells
Advanced Functional Materials, Volume 35, Issue 1, January 2, 2025.Rationally designed peptides are used to alter the elastic properties of α‐helical hydrogels, to introduce adhesion peptides and growth factors, and to spatially pattern proteins. The modularity of the hydrogelating self‐assembling fiber (hSAF) system provides a flexible platform for manipulating primary neural cell behavior, with potential future ...
D. Arne Scott +8 more
wiley +1 more source
Is NGC 4631 a barred spiral galaxy?
The Astronomical Journal, 1991 High- and low-dispersion optical spectra of the giant H II region CM 67 near the center of the edge-on galaxy NGC 4631 have been obtained. Comparisons are made with radio observations to suggest the existence of a large bar in NGC 4631. Region CM 67 is shown to coincide in position with the easternmost peak of a triple radio-continuum source.
Jianguo Wang +2 more
openaire +2 more sources
The effects of bar–spiral coupling on stellar kinematics in the Galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 13 pages, 12 figures. MNRAS. Accepted for publication.
Giacomo Monari +6 more
openaire +6 more sources
Applying the manifold theory to Milky Way models: First steps on morphology and kinematics
EPJ Web of Conferences, 2012 We present recent results obtained by applying invariant manifold techniques to analytical models of the Milky Way. It has been shown that invariant manifolds can reproduce successfully the spiral arms and rings in external barred galaxies. Here, for the
Antoja T. +3 more
doaj +1 more source