Results 41 to 50 of about 176,075 (225)
HYDRODYNAMICAL SIMULATIONS OF THE BARRED SPIRAL GALAXY NGC 1097 [PDF]
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.
Lien-Hsuan Lin+5 more
semanticscholar +1 more source
Formation of Nuclear Spirals in Barred Galaxies [PDF]
38 pages, 10 figures, accepted for publication in ...
Hong Bae Ann, Parijat Thakur
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Effect of bars on evolution of SDSS spiral galaxies [PDF]
ABSTRACT We explore the significance of bars in triggering central star formation (SF) and active galactic nucleus (AGN) activity for spiral galaxy evolution using a volume-limited sample with 0.020 < z < 0.055, Mr < −19.5, and σ > 70 km s−1 selected from Sloan Digital Sky Survey Data Release 7.
Minbae Kim+2 more
openaire +3 more sources
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.
openaire +2 more sources
Early-growing Supermassive Black Holes Strengthen Bars and Boxy/Peanut Bulges
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
Effects of the Central Mass Concentration on Bar Formation in Disk Galaxies
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
A Compton thick AGN in the barred spiral galaxy NGC 4785 [PDF]
We present X-ray observations of the active galactic nucleus (AGN) in NGC 4785. The source is a local Seyfert 2 which has not been studied so far in much detail.
P. Gandhi+8 more
semanticscholar +1 more source
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
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THE FORMATION OF SPIRAL ARMS AND RINGS IN BARRED GALAXIES [PDF]
6 pages, 3 figures, conference proceedings of "Semaine de l'Astrophysique Francaise", Grenoble 2007, eds. J. Bouvier, A.
Romero-Gomez, M.+3 more
openaire +7 more sources
GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar Populations
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