Results 151 to 160 of about 184,560 (234)

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

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

Dynamical models - The barred spiral galaxy NGC 1300

, 1989
The results of hydrodynamical model calculations for the classic SBb(s) system NGC 1300 are presented and compared to high-resolution H I observations reported by England (1989).
M. N. England
semanticscholar   +1 more source

An Imaging Survey of Early-Type Barred Galaxies

, 2002
This paper presents the results of a high-resolution imaging survey, using both ground-based and Hubble Space Telescope images, of a complete sample of nearby barred S0--Sa galaxies in the field, with a particular emphasis on identifying and measuring ...
Athanassoula E., Balkowski C., Bender R., Busarello G., Carter D., Chromey F. R., Combes F., Contini T., Contini T., de Vaucouleurs G., Friedli D., Garcia-Barreto J. A., Garcia-Barreto J. A., Gerin M., Huchtmeier W. K., Huchtmeier W. K., Jedrzejewski R. I., Kamphuis J. J., Lambas D. G., Leon S., Linda S. Sparke, Magrelli G., Malin D. F., Merrifield M. R., Michard R., Nieto J.-L., Nilson P., Peter Erwin, Richter O.-G., Schwarz U. J., Seifert W., Shane W. W., Shaw M., Shaw M., Shostak G. S., Sil’chenko O. K., Simien F., van Driel W., van Driel W., van Driel W., Veron-Cetty M.-P., Wiklind T., Wozniak H., Wozniak H., Yankulova I. M.   +44 more
core   +1 more source

Thick disk and pseudobulge formation in a clump cluster

EPJ Web of Conferences, 2012
Bulges in spiral galaxies have been supposed to be classified into two types: classical bulges or pseudobulges. Classical bulges are thought to form by galactic merger with bursty star formation, whereas pseudobulges are suggested to form by secular ...
Inoue S.
doaj   +1 more source

Importance of Initial Condition on Bar Secular Evolution: Role of Halo Angular Momentum Distribution Discontinuity

The Astrophysical Journal
The dark matter halo properties, for example, mass, spin, and concentration, play a significant role in the formation and evolution of bars in disk galaxies.
Sandeep Kumar Kataria, Juntai Shen
doaj   +1 more source

Bar-driven Transport of Molecular Gas in Spiral Galaxies: Observational Evidence [PDF]

arXiv, 1999
The NRO-OVRO CO imaging survey showed that molecular gas was more concentrated to the central kiloparsec in barred spiral galaxies than in their unbarred counterparts. The result provided not only evidence for bar-driven gas transport but also estimates on the mean rate of gas transfer and lower limits to the lifetime of bars.
arxiv  

The Tully-Fisher Relation of Barred Galaxies

, 2003
We present new data exploring the scaling relations, such as the Tully-Fisher relation (TFR), of bright barred and unbarred galaxies. A primary motivation for this study is to establish whether barredness correlates with, and is a consequence of, virial ...
Bottema R., Corsini E. M., David R. Andersen, Hans‐Walter Rix, Klypin A., Lauren A. MacArthur, Matthew A. Bershady, Stephane Courteau, Tully R. B., Zhao H.   +9 more
core   +1 more source

ALMA-LEGUS. I. The Influence of Galaxy Morphology on Molecular Cloud Properties

The Astrophysical Journal
We present a comparative study of the molecular gas in two galaxies from the Legacy ExtraGalactic UV Survey (LEGUS) sample: barred spiral NGC 1313 and flocculent spiral NGC 7793.
Molly K. Finn, Kelsey E. Johnson, Remy Indebetouw, Allison H. Costa, Angela Adamo, Alessandra Aloisi, Lauren Bittle, Daniela Calzetti, Daniel A. Dale, Clare L. Dobbs, Jennifer Donovan Meyer, Bruce G. Elmegreen, Debra M. Elmegreen, Michele Fumagalli, J. S. Gallagher, Kathryn Grasha, Eva K. Grebel, Robert C. Kennicutt, Mark R. Krumholz, Janice C. Lee, Matteo Messa, Preethi Nair, Elena Sabbi, Linda J. Smith, David A. Thilker, Bradley C. Whitmore, Aida Wofford   +26 more
doaj   +1 more source

Model-based pattern speed estimates for 38 barred galaxies

, 2008
We have modelled 38 barred galaxies by using near-IR and optical data from the Ohio State University Bright Spiral Galaxy Survey. We constructed the gravitational potentials of the galaxies from $H$-band photometry, assuming constant mass-to-light ratio.
Abraham, Aguerri, Aguerri, Aguerri, Aguerri, Athanassoula, Athanassoula, Athanassoula, Bournaud, Buta, Buta, Buta, Buta, Buta, Buta, Buta, Buta, Byrd, Canzian, Chemin, Chernin, Combes, Contopoulos, Corsini, Corsini, de Grijs, de Vaucouleurs, Debattista, Debattista, Debattista, Debattista, Debattista, Devereux, E. Laurikainen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, England, Erwin, Erwin, Eskridge, Eskridge, Friedli, Garcia-Burillo, García-Barreto, Gerssen, Gerssen, H. Salo, Heller, Hernández-Toledo, Higdon, Hunter, Jarrett, Jogee, Kenney, Kenney, Kent, Kent, Kranz, Laine, Laurikainen, Laurikainen, Laurikainen, Laurikainen, Lindblad, Lindblad, Lynden-Bell, Maciejewski, Maciejewski, Marinova, Martin, Martinez-Valpuesta, Masset, Menéndez-Delmestre, Merrifield, Michel-Dansac, Miwa, Mundell, Navarro, P. Rautiainen, Patsis, Patsis, Patsis, Paturel, Persic, Puerari, Quillen, Rand, Rautiainen, Rautiainen, Rautiainen, Rautiainen, Rautiainen, Reese, Regan, Salo, Salo, Salo, Schwarz, Schwarz, Sellwood, Sellwood, Sempere, Sempere, Sheth, Thompson, Tremaine, Treuthardt, Treuthardt, Tully, Vega Beltran, Weiner, Whyte, Wilke, Wilke, Zhang, Zimmer   +121 more
core   +1 more source