Results 41 to 50 of about 176,075 (225)

HYDRODYNAMICAL SIMULATIONS OF THE BARRED SPIRAL GALAXY NGC 1097 [PDF]

open access: yesProceedings of the International Astronomical Union, 2012
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]

open access: yesThe Astrophysical Journal, 2005
38 pages, 10 figures, accepted for publication in ...
Hong Bae Ann, Parijat Thakur
openaire   +3 more sources

Effect of bars on evolution of SDSS spiral galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
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

Barred Spiral Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1970
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

open access: yesThe 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

Effects of the Central Mass Concentration on Bar Formation in Disk Galaxies

open access: yesThe 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

A Compton thick AGN in the barred spiral galaxy NGC 4785 [PDF]

open access: yes, 2014
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

PHANGS–JWST First Results: Massive Young Star Clusters and New Insights from JWST Observations of NGC 1365

open access: yesThe 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

THE FORMATION OF SPIRAL ARMS AND RINGS IN BARRED GALAXIES [PDF]

open access: yesChaos, Complexity and Transport, 2007
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

open access: yesThe 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

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