Results 11 to 20 of about 7,448 (170)

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

Galaxy Zoo: Mergers – Dynamical models of interacting galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
The dynamical history of most merging galaxies is not well understood. Correlations between galaxy interaction and star formation have been found in previous studies, but require the context of the physical history of merging systems for full insight into the processes that lead to enhanced star formation.
Holincheck, A   +8 more
openaire   +4 more sources

H i 21 cm Extended Structures to the Northeast and Southwest of NGC 5595: VLA Observations of the Disk Galaxy Pair NGC 5595 and NGC 5597

open access: yesThe Astronomical Journal, 2023
We report VLA B-configuration observations of the H i 21 cm line on the close disk galaxy pair NGC 5595 and NGC 5597. At the angular resolution of the observations, ∼7.″1 × 4.″2, while most of the H i 21 cm in NGC 5595 and NGC 5597 has the same extent as
J. Antonio Garcia-Barreto   +1 more
doaj   +1 more source

A dynamical model of the inner Galaxy [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2000
20 pages, 5 gif figures, 11 postscript figures, submitted to MNRAS.
Hafner, R   +3 more
openaire   +3 more sources

Dynamics of galaxies [PDF]

open access: yesNature, 1975
The Formation and Dynamics of Galaxies—Proceedings of IAU Symposium No 58, Canberra, Australia, 1973. Edited by J. R. Shakeshaft. Pp. xv + 441. (Reidel: bordrecht, Holland; Boston, Massachusetts, 1974.) Cloth Dfl. 135, $54.00; paper Dfl. 100, $38.50.
openaire   +1 more source

On the dynamics of the Sagittarius dwarf galaxy [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1995
We use numerical simulations to test the feasibility of the suggestion by Ibata et al. (1994) that the excess population of stars which they discovered in the Sagittarius region may be the disrupted remains of a dwarf spheroidal galaxy. We find that a Fornax-like model for the pre-disruption system can indeed reproduce the data.
Velazquez, H., White, S. D. M.
openaire   +2 more sources

The Stability of Some Galaxy Disks is Still Perplexing

open access: yesThe Astrophysical Journal, 2023
The problem of how some disk galaxies avoid forming bars remains unsolved. Many galaxy models having reasonable properties continue to manifest vigorous instabilities that rapidly form strong bars and no widely accepted idea has yet been advanced to ...
J. A. Sellwood, R. G. Carlberg
doaj   +1 more source

Kinematical Fluctuations Vary with Galaxy Surface Mass Density

open access: yesThe Astrophysical Journal Letters, 2023
The Galaxy inner parts are generally considered to be optically symmetric, as well as kinematically symmetric for most massive early-type galaxies. At the lower-mass end, many galaxies contain lots of small patches in their velocity maps, causing their ...
Ze-Hao Zhong   +3 more
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

Dynamical regularities in rotating galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2019
AbstractGalaxies are observed to obey a strict set of dynamical scaling relations. We review these relations for rotationally supported disk galaxies spanning many decades in mass, surface brightness, and gas content. The behavior of these widely varied systems can be summarized with a handful of empirical laws connected by a common acceleration scale.
Stacy McGaugh   +3 more
openaire   +2 more sources

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