Results 31 to 40 of about 466,777 (152)

Galaxy Zoo: Bars in Disk Galaxies

open access: yes, 2010
We present first results from Galaxy Zoo 2, the second phase of the highly successful Galaxy Zoo project (www.galaxyzoo.org).
Hoyle, B   +22 more
core   +1 more source

The Strength of Bisymmetric Modes in SDSS-IV/MaNGA Barred Galaxy Kinematics

open access: yesThe Astrophysical Journal
The Sloan Digital Sky Survey-IV/Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) Survey data provide an unprecedented opportunity to study the internal motions of galaxies and, in particular, represent the largest sample of barred galaxy ...
Brian DiGiorgio Zanger   +9 more
doaj   +1 more source

The Role of Baryonic and Dark Matter in Bar Kinematics

open access: yesThe Astrophysical Journal
Simulations predict that bars in galaxies should slow down over time. This is often attributed to the exchange of angular momentum between the bar and other regions of the galaxy, such as the outer disk and dark matter halo, which implies that galaxies ...
Tobias Géron   +5 more
doaj   +1 more source

Orbital Support and Evolution of Flat Profiles of Bars (Shoulders)

open access: yesThe Astrophysical Journal, 2023
Many barred galaxies exhibit upturns (shoulders) in their bar-major-axis density profile. Simulation studies have suggested that shoulders are supported by looped x _1 orbits, occur in growing bars, and can appear after bar buckling.
Leandro Beraldo e Silva   +6 more
doaj   +1 more source

The clustering of galaxies in hierarchical galaxy formation models [PDF]

open access: yes, 2010
Galaxy clustering encodes information about the values of cosmological parameters and also about the physical processes behind galaxy formation and evolution. The GALFORM semi-analytical model is the theoretical approach we used to model galaxy formation.
KIM, HAN,SIK, Kim, Han Sik
core  

Galaxy Zoo: bars in disc galaxies

open access: yes, 2011
We present first results from Galaxy Zoo 2, the second phase of the highly successful Galaxy Zoo project (www.galaxyzoo.org). Using a volume-limited sample of 13 665 disc galaxies (0.01 < z < 0.06 and M-r < -19.38), we study the fraction of galaxies with
Masters, Karen L.   +10 more
core   +1 more source

Bar Formation during a Gaia-Sausage-Enceladus-like Merger Event

open access: yesThe Astrophysical Journal
Bars are among the most prominent galactic structures, yet their formation mechanisms remain incompletely understood. They can form either internally, via dynamical instabilities, or externally, triggered by interactions with other galaxies.
Bin-Hui Chen   +2 more
doaj   +1 more source

Living with Neighbors. VI. Unraveling the Dual Impact of Bars on Star Formation in Paired Galaxies Using DESI

open access: yesThe Astrophysical Journal
We present a comprehensive investigation into the influence of stellar bars on star formation (SF) in galaxy pairs, using a large sample of low-redshift galaxies (0.02 < z < 0.08) from the DESI Legacy Imaging Surveys Data Release 8. Our analysis examines
Woong-Bae G. Zee, Suk-Jin Yoon
doaj   +1 more source

Effect of bars on the galaxy properties [PDF]

open access: yes, 2016
Aims. With the aim of assessing the effects of bars on disk galaxy properties, we present an analysis of different characteristics of spiral galaxies with strong bars, weak bars and without bars. Methods.
Matias Vera   +6 more
core   +2 more sources

Barred Galaxies in MaNGA: Stellar Mass Dependence and Black Hole Growth

open access: yesThe Astrophysical Journal
This study investigates the role of internal structures, such as stellar bars and active galactic nuclei (AGN), in shaping galaxy evolution using 7408 galaxies (2641 barred) from the Sloan Digital Sky Survey IV Mapping Nearby Galaxies at Apache Point ...
Chandan Watts, Sudhanshu Barway
doaj   +1 more source

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