Results 31 to 40 of about 7,946 (225)

On the Link Between Central Black Holes, Bar Dynamics, and Dark Matter Halos in Spiral Galaxies [PDF]

, 2011
The discovery of a relationship between supermassive black hole (SMBH) mass and spiral arm pitch angle (P) is evidence that SMBHs are tied to the overall secular evolution of a galaxy.
Amber D. Sierra, Athanassoula, Athanassoula, Athanassoula, Bandara, Bell, Bell, Block, Booth, Buta, Buta, Buta, Buta, Byrd, Canzian, Catinella, Cisternas, Claud H. S. Lacy, Considère, Contopoulos, Daniel Kennefick, Das, Davis, de Grijs, de Vaucouleurs, Debattista, Egusa, Ferrarese, Ferrarese, Garcia, Garcia-Gomez, Gebhardt, Gebhardt, Grouchy, Heikki Salo, Ho, Ho, Hubble, Ismaeel Al-Baidhany, Jogee, Julia Kennefick, Kalnajs, Kennicutt, Kormendy, Kormendy, Laurikainen, Laurikainen, Laurikainen, Laurikainen, Lin, Lynden Bell, Marc S. Seigar, Mathewson, Merlin, Márquez, Orban de Xivry, Patrick Treuthardt, Paturel, Persic, Puerari, Rautiainen, Rautiainen, Ringermacher, Roberts, Salo, Salo, Satyapal, Satyapal, Schröder, Schwarz, Seigar, Seigar, Seigar, Seigar, Seigar, Seigar, Sheth, Tremaine, Treuthardt, van den Bosch, Volonteri, Weiner   +81 more
core   +1 more source

GASP. XLV. Stellar Bars in Jellyfish Galaxies: Analysis of Ionized Gas and Stellar Populations

The Astrophysical Journal, 2023
Stellar bars have been found to substantially influence the properties of stellar populations in galaxies, affecting their ability to form stars. While this can be easily seen when studying galaxies in relatively isolated environments, such type of ...
Osbaldo Sánchez-García, Bernardo Cervantes Sodi, Jacopo Fritz, Alessia Moretti, Bianca M. Poggianti, Koshy George, Marco Gullieuszik, Benedetta Vulcani, Giovanni Fasano, Amira A. Tawfeek   +9 more
doaj   +1 more source

Effect of bars on the galaxy properties

, 2016
Aims: With the aim of assessing the effects of bars on disc galaxy properties, we present an analysis of different characteristics of spiral galaxies with strong, weak and without bars.
Alonso, Sol, Coldwell, Georgina, Vera, Matias   +2 more
core   +1 more source

A New Mechanism for Radial Migration in Galactic Disks: Spiral-Bar Resonance Overlap [PDF]

, 2010
While it has long been known that a large number of short-lived transient spirals can cause stellar migration, here we report that another mechanism is also effective at mixing disks of barred galaxies.
Antoja, B. Famaey, Binney, Bland-Hawthorn, Combes, Daflon, Dehnen, Dehnen, Drimmel, Edvardsson, Elmegreen, Freeman, Freeman, Heller, Henry, I. Minchev, Jalali, Jenkins, Jenkins, Lépine, Masset, Meidt, Meidt, Mihalas, Minchev, Minchev, Minchev, Quillen, Quillen, Rautiainen, Roškar, Salo, Sellwood, Sellwood, Sygnet   +34 more
core   +3 more sources

Short-term dynamical evolution of grand-design spirals in barred galaxies

, 2015
We investigate the short-term dynamical evolution of stellar grand-design spiral arms in barred spiral galaxies using a three-dimensional (3D) $N$-body/hydrodynamic simulation.
Baba, Junichi
core   +1 more source

Comparison of physical characteristics of mass and luminosity function of disk systems in barred and unbarred spiral galaxies

مجلة بغداد للعلوم
Among the most important ways to investigate galaxies' distribution over cosmic time is the luminosity function LF in terms of baryonic disc mass ψS(Mb), magnitude  .
Al Najm M.N., Y. E. Rashed , H. H. AL-Dahlaki   +2 more
doaj   +1 more source

Detection of CO(J=1-0) Emission from Barred Spiral Galaxies at z~0.1

, 2011
We present the results of CO (J=1-0) observations towards nine barred spiral galaxies at z=0.08-0.25 using the 45-m telescope at Nobeyama Radio Observatory (NRO). This survey is the first one specialized for barred spiral galaxies in this redshift range.
Kuno, Nario, Matsui, Kana, Sorai, Kazuo, Watanabe, Yoshimasa   +3 more
core   +1 more source

Invariant manifolds and the response of spiral arms in barred galaxies

, 2008
The unstable invariant manifolds of the short-period family of periodic orbits around the unstable Lagrangian points $L_1$ and $L_2$ of a barred galaxy define loci in the configuration space which take the form of a trailing spiral pattern.
Aguerri, Buta, C. Efthymiopoulos, C. Kalapotharakos, Contopoulos, Contopoulos, Contopoulos, Contopoulos, Efthymiopoulos, Fux, G. Contopoulos, Grobman, Hammed, Hartman, Kaufmann, Kaufmann, Laurikainen, Lindblad, P. Tsoutsis, Patsis, Patsis, Pfenniger, Pfenniger, Pichardo, Romero-Gomez, Romero-Gomez, Schwarzschild, Smith, Sparke, Tsoutsis, Tully, Voglis, Voglis   +32 more
core   +1 more source

The Visibility of Galactic Bars and Spiral Structure At High Redshifts [PDF]

, 2002
We investigate the visibility of galactic bars and spiral structure in the distant Universe by artificially redshifting 101 B-band CCD images of local spiral galaxies from the Ohio State University Bright Spiral Galaxy Survey. Our artificially redshifted
Abraham R. G., Abraham R. G., Glazebrook K., Jay A. Frogel, Laura F. Whyte, Michael R. Merrifield, Paul B. Eskridge, Richard Pogge, Roberto G. Abraham, Sidney van den Bergh   +9 more
core   +2 more sources

Stellar Bars in Isolated Gas-rich Spiral Galaxies Do Not Slow Down

The Astrophysical Journal, 2023
Elongated bar-like features are ubiquitous in galaxies, occurring at the centers of approximately two-thirds of spiral disks in the nearby Universe. Due to gravitational interactions between the bar and the other components of galaxies, it is expected ...
Angus Beane, Lars Hernquist, Elena D’Onghia, Federico Marinacci, Charlie Conroy, Jia Qi, Laura V. Sales, Paul Torrey, Mark Vogelsberger   +8 more
doaj   +1 more source