Results 131 to 140 of about 8,434 (230)

Ring or No Ring—Revisiting the Multiphase Nuclear Environment in M31

The Astrophysical Journal
Nuclear rings, prevalent in barred galaxies, are essential to understanding gas transport toward galactic nuclei. However, the peculiar nuclear ring in our neighboring galaxy M31 remains poorly understood.
Zongnan Li, Zhao Su, Sumin Wang, Yufan F. Zhou, Zhiyuan Li, Xuanyi Lyu, Fanyi Meng, Kai Zhang, Di Li, Chaowei Tsai, Jingwen Wu, Jiachang Zhang   +11 more
doaj   +1 more source

The Milky Way’s Rowdy Neighbors: The Effects of the Large Magellanic Cloud and Sagittarius Dwarf on the Milky Way Disk

The Astrophysical Journal
The Milky Way (MW) is a barred spiral galaxy shaped by tidal interactions with its satellites. The Large Magellanic Cloud (LMC) and the Sagittarius dwarf galaxy (Sgr) are the dominant influences at the present day. This paper presents a suite of four 10 ^
Ioana A. Stelea, Jason A. S. Hunt, Kathryn V. Johnston   +2 more
doaj   +1 more source

Bars do drive spiral density waves

, 2010
Recently, Buta etal. (2009) examined the question "Do Bars Drive Spiral Density Waves?", an idea supported by theoretical studies and also from a preliminary observational analysis Block etal (2004).
Athanassoula, Bertin, Binney, Block, Bosma, Buta, Buta, Buta, Buta, Elmegreen, Eskridge, Knapen, Lindblad, Masset, Rautiainen, Salo, Salo, Sellwood, Sellwood, Sellwood, Sheth, Sheth, Skrutskie, Speltincx, Toomre   +24 more
core   +1 more source

The TYPHOON Stellar Population Synthesis Survey. II. Pushing Full Spectral Fitting to the Limit in the Nearby Grand Design Barred Spiral M83

The Astrophysical Journal
We apply population synthesis techniques to analyze TYPHOON long slit spectra of the starburst barred spiral galaxy M83. The analysis covers a central square of 5′ side length.
Eva Sextl, Rolf-Peter Kudritzki, Fabio Bresolin, Kathryn Grasha, Hye-Jin Park, Qian-Hui Chen, Andrew J. Battisti, Mark Seibert, Barry F. Madore, Jeffrey A. Rich   +9 more
doaj   +1 more source

An Optimal Strategy for Accurate Bulge-to-disk Decomposition of Disk Galaxies

, 2017
The development of two-dimensional (2D) bulge-to-disk decomposition techniques has shown their advantages over traditional one-dimensional (1D) techniques, especially for galaxies with non-axisymmetric features.
Gao, Hua, Ho, Luis C.
core   +1 more source

Effects of Halo Spin on the Formation and Evolution of Bars in Disk Galaxies

The Astrophysical Journal
The spin of dark halos has been shown to significantly affect bar formation and evolution in disk galaxies. To understand the physical role of halo spin in bar formation, we run N -body simulations of isolated, Milky Way–sized galaxies by varying the ...
Dajeong Jang, Woong-Tae Kim
doaj   +1 more source

Automated Detection of Galactic Rings from Sloan Digital Sky Survey Images

The Astrophysical Journal
Morphological features in galaxies—like spiral arms, bars, rings, and tidal tails, etc.—carry information about their structure, origin, and evolution.
Linn Abraham, Sheelu Abraham, Ajit K. Kembhavi, N. S. Philip, A. K. Aniyan, Sudhanshu Barway, Harish Kumar   +6 more
doaj   +1 more source

Simulations of cosmic ray propagation. [PDF]

Living Rev Comput Astrophys, 2021
Hanasz M, Strong AW, Girichidis P.
europepmc   +1 more source

High-velocity Molecular Clouds in M83

The Astrophysical Journal
High-velocity clouds (HVCs), which are gas clouds moving at high velocity relative to the galactic disk, may play a critical role in galaxy evolution, potentially supplying gas to the disk and triggering star formation.
Maki Nagata, Fumi Egusa, Fumiya Maeda, Kazuki Tokuda, Kotaro Kohno, Kana Morokuma-Matsui, Jin Koda   +6 more
doaj   +1 more source

Abundance gradients in a sample of barred spiral galaxies [PDF]

, 2005
O. L. Dors, M. V. F. Copetti
openalex   +1 more source