Results 121 to 130 of about 7,888 (222)

The two-phase formation history of spiral galaxies traced by the cosmic evolution of the bar fraction

, 2012
We study the evolution of galactic bars and the link with disk and spheroid formation in a sample of zoom-in cosmological simulations. Our simulation sample focuses on galaxies with present-day stellar masses in the 10^10-10^11 Msun range, in field and ...
Aguerri, Athanassoula, Barazza, Berentzen, Bournaud, Bournaud, Bournaud, Bournaud, Bureau, Chiappini, Combes, Combes, Dalcanton, de Vaucouleurs, Debattista, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Eskridge, Fisher, Friedli, Frédéric Bournaud, Gerin, Gilmore, Heller, Jogee, Katarina Kraljic, Kennicutt, Knapen, Laine, Laurikainen, Lee, Maiolino, Marie Martig, Martig, Martig, Martig, Martinez-Valpuesta, Menéndez-Delmestre, Miwa, Peng, Peng, Pfenniger, Robertson, Sargent, Sellwood, Seth, Shen, Sheth, Sheth, Sérsic, Teyssier, van den Bergh, Weinberg, Yoachim, Zoccali   +56 more
core   +3 more sources

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

Bar-induced central star formation as revealed by integral field spectroscopy from CALIFA

, 2017
We investigate the recent star formation history (SFH) in the inner region of 57 nearly face-on spiral galaxies selected from the Calar Alto Legacy Integral Field Area (CALIFA) survey. For each galaxy we use the integral field spectroscopy from CALIFA to
He, Yanqin, Li, Cheng, Lin, Lin, Wang, Enci, Xiao, Ting   +4 more
core   +1 more source

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

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

Simulations of cosmic ray propagation. [PDF]

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

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 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

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