Results 121 to 130 of about 7,844 (220)

Inner Workings: Astronomers are redrawing our corner of the Milky Way. [PDF]

Proc Natl Acad Sci U S A, 2021
Croswell K.
europepmc   +1 more source

Astronomia ex machina: a history, primer and outlook on neural networks in astronomy. [PDF]

R Soc Open Sci, 2023
Smith MJ, Geach JE.
europepmc   +1 more source

Supernovae and their host galaxies - II. The relative frequencies of supernovae types in spirals

, 2014
We present an analysis of the relative frequencies of different supernova (SN) types in spirals with various morphologies and in barred or unbarred galaxies.
Adibekyan, V. Zh., Aramyan, L. S., Bertin, E., de Lapparent, V., Gomes, J. M., Hakobyan, A. A., Kunth, D., Mamon, G. A., Nazaryan, T. A., Petrosian, A. R., Turatto, M.   +10 more
core   +2 more sources

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

Barred Galaxies in the Abell 901/2 Supercluster with STAGES

, 2009
We present a study of bar and host disk evolution in a dense cluster environment, based on a sample of ~800 bright (MV
Abazajian, Amanda Heiderman, Andy Taylor, Asmus Böhm, Athanassoula, Athanassoula, Balogh, Barazza, Barden, Bell, Bell, Block, Boris Häußler, Buta, Catherine Heymans, Chien Y. Peng, Christian Wolf, Combes, Combes, Daniel H. McIntosh, David Bacon, de Vaucouleurs, Debattista, Debattista, Dubinski, Eelco van Kampen, Elmegreen, Elmegreen, Eric F. Bell, Eskridge, Eskridge, Fabio D. Barazza, Fisher, Gray, Heiderman, Heller, Irina Marinova, Jedrzejewski, Jogee, Jogee, Jogee, Jogee, Jogee, Jogee, John A. R. Caldwell, Kassin, Klaus Meisenheimer, Knapen, Knud Jahnke, Koopmann, Kormendy, Kyle Lane, Laine, Laine, Laurikainen, Laurikainen, Lutz Wisotzki, Marco Barden, Marinova, Martinez-Valpuesta, Meghan E. Gray, Menéndez-Delmestre, Michael Balogh, Mulchaey, Persic, Rachel Somerville, Ravindranath, Reese, Regan, Romano-Díaz, Schneider, Sebastian F. Sánchez, Sellwood, Shardha Jogee, Sheth, Sheth, Sheth, van den Bergh, Weinberg, Weinzirl, Xianzhong Zheng   +80 more
core   +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

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

Simulations of cosmic ray propagation. [PDF]

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

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 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