Results 31 to 40 of about 8,434 (230)
THE FORMATION OF SPIRAL ARMS AND RINGS IN BARRED GALAXIES [PDF]
Chaos, 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
The local galaxy density and the bars of spiral galaxies
The Astrophysical Journal, 1993 23 pages, LaTeX, SISSA Ref.
GIURICIN G +3 more
openaire +4 more sources
AGN spiral galaxies in groups: effects of bars [PDF]
Astronomy & Astrophysics, 2014 10 pages, 10 figures.
Sol Alonso +6 more
openaire +4 more sources
The Astrophysical Journal Letters, 2023 A primary new capability of JWST is the ability to penetrate the dust in star-forming galaxies to identify and study the properties of young star clusters that remain embedded in dust and gas. In this Letter we combine new infrared images taken with JWST
Bradley C. Whitmore +30 more
doaj +1 more source
Effects of the Central Mass Concentration on Bar Formation in Disk Galaxies
The Astrophysical Journal, 2023 While bars are common in disk galaxies, their formation conditions are not well understood. We use N -body simulations to study the formation and evolution of a bar in isolated galaxies consisting of a stellar disk, a classical bulge, and a dark halo. We
Dajeong Jang, Woong-Tae Kim
doaj +1 more source
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.
openaire +3 more sources
Early-growing Supermassive Black Holes Strengthen Bars and Boxy/Peanut Bulges
The Astrophysical Journal, 2023 Using N -body simulations, we explore the effects of growing a supermassive black hole (SMBH) prior to or during the formation of a stellar bar. Keeping the final mass and growth rate of the SMBH fixed, we show that if it is introduced before or while ...
Vance Wheeler +4 more
doaj +1 more source
Molecular Bars in Spiral Galaxies [PDF]
International Astronomical Union Colloquium, 1996 Images of molecular gas in spiral galaxies show two types of bar structure: large-scale bars, which are correlated with the presence of stellar bars, and generally follow the spiral structure, and nuclear “bars” of a few hundred parsecs in size, which show no direct correlation with the presence of a stellar bar.
openaire +2 more sources
GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar Populations
The Astrophysical Journal, 2023 Stellar bars have been found to substantially influence the properties of stellar populations in galaxies, affecting their ability to form stars. While this can be easily seen when studying galaxies in relatively isolated environments, such type of ...
Osbaldo Sánchez-García +9 more
doaj +1 more source
Surface Brighteness Distribrtion of NGC 7755 [PDF]
Journal of Astronomy and Space Sciences, 1992 Isophote map and luminosity profile of the barred spiral galaxy NGC 7755 are obtained from PDS scanning of PAL 0-471 plate. From the isophote map, NGC 7755 can be classified SBbc(r) with asymmetric bar ring. We get several physical parameters (MTo U(R)CB,
Mun-Suk Chun, Seong-Min Sohn
doaj