Results 21 to 30 of about 646 (172)

Stellar diffusion in barred spiral galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2011
11 pages, 9 figures, accepted for publication in Astron ...
Brunetti, Maura   +2 more
openaire   +4 more sources

Asymptotic orbits in barred spiral galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2010
We study the formation of the spiral structure of barred spiral galaxies, using an $N$-body model. The evolution of this $N$-body model in the adiabatic approximation maintains a strong spiral pattern for more than 10 bar rotations. We find that this longevity of the spiral arms is mainly due to the phenomenon of stickiness of chaotic orbits close to ...
Constantinos Kalapotharakos   +2 more
openaire   +4 more sources

The Barred Spiral Galaxy NGC 7479.

open access: bronzeThe Astronomical Journal, 1960
E. M. Burbidge   +2 more
openalex   +4 more sources

The Formation of Nuclear Rings in Barred Spiral Galaxies [PDF]

open access: bronzeThe Astrophysical Journal, 2003
To be published in the Astrophysical Journal in January 2003. Due to the size limitations of astro-ph, no figures are in the astro-ph version.
Michael W. Regan, Peter Teuben
openalex   +4 more sources

Dynamical rules for barred spiral galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1985
Des integrations numeriques des orbites-2D demontrent que la famille principale d'orbites periodiques dans les forts potentiels barres est la famille parallele prograde. Toutes les autres familles ont des distributions de la densite des orbites qui sont incompatibles avec le potentiel impose.
Robert Sanders, Pj Teuben
openaire   +3 more sources

Barred Spiral Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1970
We point out some properties of barred spiral galaxies which are important for the theory of their formation and spiral structure, and describe some theoretical work on the dynamics of these systems.
openaire   +2 more sources

Gaseous Vortices in Barred Spiral Galaxies [PDF]

open access: bronzeThe Astrophysical Journal, 2000
Simulations of the gas flow in a variety of two-dimensional barred spiral galaxies have shown that vortices in the gas appear, when viewed from above, in the corotation frame of the bar. These low-density vortices generally appear at or near the L4 and L5 Lagrangian points.
Martin N. England   +2 more
openalex   +3 more sources

Formation of Nuclear Spirals in Barred Galaxies [PDF]

open access: yesThe Astrophysical Journal, 2005
38 pages, 10 figures, accepted for publication in ...
Hong Bae Ann, Parijat Thakur
openaire   +3 more sources

Effect of bars on evolution of SDSS spiral galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We explore the significance of bars in triggering central star formation (SF) and active galactic nucleus (AGN) activity for spiral galaxy evolution using a volume-limited sample with 0.020 < z < 0.055, Mr < −19.5, and σ > 70 km s−1 selected from Sloan Digital Sky Survey Data Release 7.
Minbae Kim   +2 more
openaire   +3 more sources

THE FORMATION OF SPIRAL ARMS AND RINGS IN BARRED GALAXIES [PDF]

open access: yesChaos, Complexity and Transport, 2007
6 pages, 3 figures, conference proceedings of "Semaine de l'Astrophysique Francaise", Grenoble 2007, eds. J. Bouvier, A.
Manuel Romero-Gómez   +3 more
openaire   +6 more sources

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