Results 151 to 160 of about 30,211 (248)

Enhanced star formation: The importance of bars in spiral galaxies [PDF]

It was found that among an IR luminous subset of nearby spiral galaxies, nearly all of the systems with IRAS colors and luminosities indicative of enhanced star formation are barred.
Hawarden, T. G., Leggett, S. K., Mountain, C. M., Puxley, P. J.   +3 more
core   +1 more source

The Formation of Nuclear Rings in Barred Spiral Galaxies [PDF]

, 2003
Michael W. Regan, Peter Teuben
openalex   +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

Stellar and gas dynamics of late-type barred-spiral galaxies: NGC 3359, a test case [PDF]

, 2009
P. A. Patsis, D. E. Kaufmann, S. T. Gottesman, V. Boonyasait   +3 more
openalex   +1 more source

Comparison of Bar Formation Mechanisms. II. Does a Tidally Induced Bar Grow Faster than an Internally Developed Bar?

The Astrophysical Journal
Bar structures can form internally due to the instability of their host galaxies or externally due to perturbations from other galaxies. We systematically quantify the growth timescales ( τ _bar ) of bars formed through these two mechanisms with a series
Yirui Zheng, Juntai Shen, Xufen Wu, Bin-Hui Chen   +3 more
doaj   +1 more source

Measuring Bar and Spiral Arm Pattern Speeds in MaNGA Barred Spiral Galaxies

Research Notes of the AAS
Abstract We measure independent pattern speeds for bar and spiral arms in 98 barred spiral galaxies with Mapping Nearby Galaxies at Apache Point Observatory data. Some galaxies exhibit statistically different pattern speeds (Ωbar ≠ Ωspiral), while others have statistically equal pattern speeds.
Tessa Pearlstein, Karen Masters, Tobias Géron   +2 more
openaire   +1 more source

Orbital Support and Evolution of CX/OX Structures in Boxy/Peanut Bars

The Astrophysical Journal
Barred galaxies exhibit boxy/peanut or X-shapes (BP/X) protruding from their disks in edge-on views. Two types of BP/X morphologies exist depending on whether the X-wings meet at the center (CX) or are off-centered (OX).
Behzad Tahmasebzadeh, Shashank Dattathri, Monica Valluri, Juntai Shen, Ling Zhu, Vance Wheeler, Ortwin Gerhard, Sandeep Kumar Kataria, Leandro Beraldo e Silva, Kathryne J. Daniel   +9 more
doaj   +1 more source

Determination of the Pattern Speed of Barred Spiral Galaxies [PDF]

, 2009
Akihiko Hirota, Nario Kuno, Naoko Sato, Hiroyuki Nakanishi, Tomoka Tosaki, Hidenori Matsui, Asao Habe, Kazuo Sorai   +7 more
openalex   +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

Discovery of diffuse optical emission lines from the inner Galaxy: Evidence for LI(N)ER-like gas. [PDF]

Sci Adv, 2020
Krishnarao D, Benjamin RA, Haffner LM.
europepmc   +1 more source