Results 51 to 60 of about 30,211 (248)

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

Forces Attributed to Dark Matter May Originate from Entangled Particles as Seen in the Shape Of Galaxies Formed by Grbs

International Journal of Engineering and Management Sciences, 2018
Recently, it has been suggested that entangled particles may be connected by a wormhole. If that is right, what is the distance between them we have to take into account when applying Newton's law of universal gravitation to these particles?
Sándor Buglyó
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

The local galaxy density and the bars of spiral galaxies

The Astrophysical Journal, 1993
23 pages, LaTeX, SISSA Ref.
GIURICIN G, MARDIROSSIAN, FABIO, MEZZETTI, MARINO, MONACO, Pierluigi   +3 more
openaire   +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

Ionised gas abundances in barred spiral galaxies [PDF]

, 2012
Aims. This is the third paper of a series devoted to studying the properties of bars from long-slit spectroscopy to understand their formation, evolution, and influence on the evolution of disk galaxies.
E. Florido, Isabel Pérez, Almudena Zurita, P. Sánchez-Blázquez   +3 more
semanticscholar   +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

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

Azimuthal variations of stellar populations in barred galaxies [PDF]

Monthly notices of the Royal Astronomical Society
Bars are expected to impact the distribution of stellar populations both during bar formation, as they rearrange stars into new orbits, and afterwards, due to the redistribution of star-formation-fuelling gas and transfer of angular momentum.
J. Neumann, D. Thomas, C. Maraston, Damian R. Gleis, Chuanming Mao, E. Schinnerer, S. Stuber   +6 more
semanticscholar   +1 more source