Results 221 to 230 of about 184,560 (234)

The Strange ‘Barred’ Spiral Galaxy ESO 235-58 – A Case of Morphological Deception

, 1993
On the SRC-J southern sky survey, the galaxy ESO 235-58 (α=21 h 03 m , δ=−48°19', 1950) looks deceptively like a late-type barred spiral with a weak, broken ring surrounding the bar.
R. Buta, D. Crocker
semanticscholar   +1 more source

The velocity field of the barred spiral galaxy NGC 5383.

, 1977
The velocity field of the barred spiral galaxy NGC 5383 has large-scale deviations from the pattern expected for only circular motions. Velocity gradients across the nucleus show a simple sinusoidal dependence on position angle, but the interpretation in
C. Peterson, V. Rubin, W. Ford, N. Thonnard   +3 more
semanticscholar   +1 more source

High-resolution neutral hydrogen observations - the barred spiral galaxy NGC 1300

, 1989
Observations of the barred spiral galaxy NGC 1300 are reported and compared with theoretical models. Strong spiral structure is seen in the H I gas distribution. These neutral hydrogen arms correspond very well with the optical arms and with H II regions.
M. N. England
semanticscholar   +1 more source

Barred Spirals and Formation of Spiral Arms by Galaxies

Nature, 1965
SO far the formation of spiral arms, especially regular arms, has not been satisfactorily explained. The investigation of this phenomenon can be facilitated by an analysis of similar, but more peculiar, objects—barred spirals. A characteristic barred galaxy has a straight bar, which at the ends transforms abruptly into spiral arms.
openaire   +2 more sources

Dynamical modelling of the remarkable four-armed barred spiral galaxy ESO 566−24

, 2003
ESO 566-24 is an extraordinary barred galaxy, which has four regularly spaced spiral arms in blue light images. This type of four-armed spiral structure, which is rare among the spiral population, is clearly seen also in near-infrared images, and thus is
P. Rautiainen, H. Salo, R. B. U. O. Oulu, Finland., U. Alabama   +4 more
semanticscholar   +1 more source

The Oxygen Abundance Gradient in the Barred Spiral Galaxy NGC 4303

, 1992
Imaging spectrophotometry in the nebular lines Hα, Hβ, [O III] λ5007, and [N II] λ6584, using a CCD camera and narrow-band interference filters, has been performed of 79 H II regions in the barred spiral galaxy NGC 4303 ranging from 0.4 to 2.8 R eff in ...
Pierre Martin, J. Roy
semanticscholar   +1 more source

A new model for barred spiral galaxies

Astrophysics and Space Science, 1983
Computer simulations are used to demonstrate that normal spiral galaxies with symmetrically warped arms can appear to have bar and bar-within-ring structures when viewed from appropriate position angles.
openaire   +2 more sources

Multiple patterns in spiral and barred galaxies

Publications of the Astronomical Society of the Pacific, 1993
Our ability to locate resonances of spiral patterns in galaxies is severely limited if spirals are short-lived and if many patterns co-exist in the same galaxy. Theoreticians are currently divided on the basic question of whether spiral patterns are long-lived, but I argue that multiple, short-lived pattersn are to be expected. Bars, on the other hadn,
openaire   +2 more sources

Spiral structure of barred galaxies

Astrophysics, 1973
openaire   +2 more sources

Circumnuclear Star Formation in the Early-Type Resonance Ring Barred Spiral Galaxy NGC 1326

, 2000
R. Buta, P. Treuthardt, G. Byrd, D. Crocker   +3 more
semanticscholar   +1 more source