Results 91 to 100 of about 198 (153)

Morphologies arising from the gas flow in the innermost kiloparsec of barred galaxy models

Astronomy & Astrophysics
Context. We study a series of response models to investigate the formation of specific morphological features in the central 1 kpc region of the gas component in barred spiral galaxies. Aims. We aim to understand how structures, such as nuclear rings and
Pastras S., Patsis P. A., Athanassoula E.   +2 more
doaj   +1 more source

Coevolution of Bar and Spiral Arms in TNG50 Simulations Using Information Theory

The Astrophysical Journal
Using Information Theory, we investigate the coevolution of bars and spiral arms in barred-spiral galaxies from the cosmological magnetohydrodynamic Illustris TNG50 simulations. We first calculate Mutual Information (MI) between a structural or kinematic
Anagha A G, Arunima Banerjee
doaj   +1 more source

The life cycle of the Central Molecular Zone - II. Distribution of atomic and molecular gas tracers. [PDF]

Mon Not R Astron Soc, 2020
Armillotta L, Krumholz MR, Di Teodoro EM.   +2 more
europepmc   +1 more source

Tracing Coherent Gas Structures in the Central Region of the Starburst Galaxy NGC 253. II. Gas Excitation and Star Formation

The Astrophysical Journal
Molecular gas in the central region of the starburst galaxy NGC 253 is complicated because of the combination of different gas kinematics, including stellar feedback, noncircular motions, and magnetic activity.
Ryotaro Konishi, R. Enokiya, Y. Fukui, K. Tachihara, K. Muraoka, T. Onishi   +5 more
doaj   +1 more source

Structure and Evolution of Barred Spiral Galaxies, III [PDF]

Monthly Notices of the Royal Astronomical Society, 1966
K. C. Freeman, L. Mestel
openaire   +2 more sources

The Clearing Timescale for Infrared-selected Star Clusters in M83 with HST

The Astrophysical Journal Letters
We present an analysis of Hubble Space Telescope data from Wide Field Camera 3 (WFC3)/Ultraviolet Imaging Spectrometer, WFC3/IR, and the Advanced Camera for Surveys, investigating the young stellar cluster (YSC) population in the face-on spiral galaxy ...
Suyash Deshmukh, Sean T. Linden, Daniela Calzetti, Angela Adamo, Matteo Messa, Kathryn Grasha, Elena Sabbi, Linda Smith, Kelsey E. Johnson   +8 more
doaj   +1 more source

The NGC 3109 Satellite System: The First Systematic Resolved Search for Dwarf Galaxies Around an SMC-mass Host

The Astrophysical Journal
We report the results of the deepest search to date for dwarf galaxies around NGC 3109, a barred spiral galaxy with a mass similar to that of the Small Magellanic Cloud (SMC), using a semiautomated search method. Using the Dark Energy Camera, we survey a
Amandine Doliva-Dolinsky, Burçin Mutlu-Pakdil, Denija Crnojević, Dhayaa Anbajagane, Jeffrey L. Carlin, Jonah Medoff, David J. Sand, Erik Tollerud, Sungsoon Lim, Paul Bennet, Alex Drlica-Wagner, Catherine E. Fielder, Jonathan R. Hargis, Kai Herron, Laura Congreve Hunter, Michael G. Jones, Ananthan Karunakaran, Annika H. G. Peter, Aaron J. Romanowsky, Kristine Spekkens, Jay Strader, Beth Willman, Julio A. Carballo-Bello, William Cerny, Astha Chaturvedi, Nitya Kallivayalil, Clara E. Martínez-Vázquez, Gustavo E. Medina, Noelia E. D. Noël, Andrew B. Pace, Alex H. Riley, Joanna D. Sakowska, Adam Smercina, Kathy Vivas, Monika Adamów, Clecio R. Bom, Yumi Choi, Peter S. Ferguson, Mahdieh Navabi, Alfredo Zenteno, (DELVE Collaboration)   +40 more
doaj   +1 more source

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

Automatic Detection of Galaxy Type From Datasets of Galaxies Image Based on Image Retrieval Approach. [PDF]

Sci Rep, 2017
Abd El Aziz M, Selim IM, Xiong S, Xiong S.   +3 more
europepmc   +1 more source

Maximum Entropy (Most Likely) Double Helical and Double Logarithmic Spiral Trajectories in Space-Time. [PDF]

Sci Rep, 2019
Parker MC, Jeynes C.
europepmc   +1 more source