Results 1 to 10 of about 30,211 (248)
J0107a: A Barred Spiral Dusty Star-forming Galaxy at z = 2.467 [PDF]
The Astrophysical Journal Letters, 2023 Dusty star-forming galaxies (DSFGs) are among the most massive and active star-forming galaxies during the cosmic noon. Theoretical studies have proposed various formation mechanisms of DSFGs, including major merger-driven starbursts and secular star ...
Shuo Huang +9 more
doaj +4 more sources
Asymptotic Orbits in Barred Spiral Galaxies [PDF]
Monthly 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.
Athanassoula +30 more
core +5 more sources
TESTING THEORIES IN BARRED-SPIRAL GALAXIES [PDF]
The Astrophysical Journal, 2011 According to one version of the recently proposed "manifold" theory that explains the origin of spirals and rings in relation to chaotic orbits, galaxies with stronger bars should have a higher spiral arms pitch angle when compared to galaxies with weaker bars.
Eric E. Martínez-García
semanticscholar +6 more sources
Nuclear bars and blue nuclei within barred spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1995 24 pages plain LaTex( including table captions), 5 tables and 18 figures. Accepted for publication in MNRAS. Paper and tables available via anonymous ftp://143.167.4.101/pub/papers as sqiid-paper.tex and table1,2,3.tex, table4.ps, table5.ps.
M. Shaw +3 more
semanticscholar +5 more sources
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.
Athanassoula E. +21 more
core +7 more sources
Multicolor Photometry of Barred Spiral Galaxies [PDF]
International Astronomical Union Colloquium, 1996 B – V and R – I color maps (from CCD imagery obtained at Cerro Tololo Inter-American Observatory) of six barred spiral galaxies have been used (Horst 1992) to investigate stellar populations within the bars and nuclei. Two-color diagrams show that the distribution of pixel colors largely parallels the expected locus for normal unreddened stars. If the “
William D. Horst, C. J. Peterson
openalex +2 more sources
Symposium - 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.
K. C. Freeman
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Diffusion in barred-spiral galaxies [PDF]
, 2010 We characterize the radial migration of stars in the disk plane by calculating the diffusion coefficient and the diffusion time-scale for a bulge-disk N-body self-consistent system with a marginally-stable Toomre-Q parameter. We find that diffusion is not constant in time, but follows the evolution of the bar, and becomes maximum near the corotation ...
Maura Brunetti +2 more
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Gaseous Vortices in Barred Spiral Galaxies [PDF]
The 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
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Starbursts in Barred Spiral Galaxies. III. Definition of a homogeneous sample of Starburst Nucleus Galaxies [PDF]
Astronomy and Astrophysics Supplement Series, 1997 This paper presents optical long-slit spectroscopic observations of 105 barred Markarian IRAS galaxies. These observations are used to determine the spectral type of emission-line regions in the nucleus and along the bar of the galaxies, in order to define a homogeneous sample of Starburst Nucleus Galaxies (SBNGs). Our selection criteria have been very
T. Contini, S. Considère, E. Davoust
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