Results 31 to 40 of about 184,560 (234)

Effect of bars on the galaxy properties [PDF]

A&A 595, A63 (2016), 2016
Aims: With the aim of assessing the effects of bars on disc galaxy properties, we present an analysis of different characteristics of spiral galaxies with strong, weak and without bars.
Alonso, Sol, Coldwell, Georgina, Vera, Matias   +2 more
core   +2 more sources

The Frequency of Barred Spiral Galaxies in the Near-Infrared [PDF]

The Astronomical Journal, 2000
We have determined the fraction of barred galaxies in the H-band for a statistically well-defined sample of 186 spirals drawn from the Ohio State University Bright Spiral Galaxy survey. We find 56% of our sample to be strongly barred at H, while another 16% is weakly barred. Only 27% of our sample is unbarred in the near-infrared.
Eskridge, Paul B., Frogel, Jay A., Pogge, Richard W., Quillen, Alice C., Davies, Roger L., DePoy, D. L., Houdashelt, Mark L., Kuchinski, Leslie E., Ramírez, Solange V., Sellgren, K., Terndrup, Donald M., Tiede, Glenn P.   +11 more
openaire   +7 more sources

Hydrodynamical Simulations of the Barred Spiral Galaxy NGC 1097 [PDF]

Proceedings of the International Astronomical Union, 2013
NGC 1097 is a nearby barred spiral galaxy believed to be interacting with the elliptical galaxy NGC 1097A located to its northwest. It hosts a Seyfert 1 nucleus surrounded by a circumnuclear starburst ring.
Hsieh, Pei-Ying, Lin, Lien-Hsuan, Taam, Ronald E., Wang, Hsiang-Hsu, Yang, Chao-Chin, Yen, David C. C.   +5 more
core   +2 more sources

On wave dark matter in spiral and barred galaxies [PDF]

Journal of Cosmology and Astroparticle Physics, 2015
We recover spiral and barred spiral patterns in disk galaxy simulations with a Wave Dark Matter (WDM) background (also known as Scalar Field Dark Matter (SFDM), Ultra-Light Axion (ULA) dark matter, and Bose-Einstein Condensate (BEC) dark matter). Here we show how the interaction between a baryonic disk and its Dark Matter Halo triggers the formation of
Hubert L. Bray, Tonatiuh Matos, L. A. Martinez-Medina   +2 more
openaire   +5 more sources

Age distributions of star clusters in spiral and barred galaxies as a test for theories of spiral structure [PDF]

, 2010
We consider models of gas flow in spiral galaxies in which the spiral structure has been excited by various possible mechanisms: a global steady density wave, self-gravity of the stellar disc and an external tidal interaction, as well as the case of a ...
Anders, Bash, Bastian, Bate, Beckman, Benz, Bertin, Bik, Binney, Bottema, C. L. Dobbs, Chandar, Cox, De Grijs, Dobbs, Dobbs, Dobbs, Dobbs, Dobbs, Dobbs, Dubinski, Efremov, Elmegreen, Elmegreen, Fall, Fall, Fujii, Fujimoto, Gonzalez, Heyer, Hohl, Hunter, J. E. Pringle, Kaleida, Kalnajs, Karl, Kendall, Koda, Kormendy, Kuijken, Lin, Lubow, Martínez-García, Muraoka, Ostriker, Popping, Price, Price, Regan, Roberts, Roberts, Roberts, Sandstrom, Scheepmaker, Sellwood, Sellwood, Sheth, Theis, Toomre, Toomre, Tutukov, Wozniak, Zurita   +62 more
core   +2 more sources

Gas Streaming in Barred Spiral Galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 1965
L. Mestel, K. C. Freeman
openaire   +3 more sources

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, Martin N. England, G. Contopoulos, J. H. Hunter   +3 more
openaire   +3 more sources

Detecting a disk bending wave in a barred-spiral galaxy at redshift 4.4 [PDF]

Monthly notices of the Royal Astronomical Society, 2023
The recent discovery of barred spiral galaxies in the early universe (z > 2) poses questions of how these structures form and how they influence galaxy evolution in the early universe.
T. Tsukui, E. Wisnioski, J. Bland-Hawthorn, Yifan Mai, S. Iguchi, J. Baba, K. Freeman   +6 more
semanticscholar   +1 more source

Herschel and Odin observations of H2O, CO, CH, CH+, and [N II] in the barred spiral galaxy NGC 1365 [PDF]

Astronomy & Astrophysics, 2021
Context. The Odin satellite is now into its twentieth year of operation, much surpassing its design life of two years. One of its major astronomical pursuits was the search for and study of water vapor in diverse regions of the Solar System and the Milky
A. Sandqvist, A. Hjalmarson, B. Larsson, U. Frisk, S. Lundin, G. Rydbeck   +5 more
semanticscholar   +1 more source

Structure and Evolution of Barred Spiral Galaxies, I [PDF]

Monthly Notices of the Royal Astronomical Society, 1966
K. C. Freeman, L. Mestel
openaire   +5 more sources