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The Link between Galaxy Structure Properties and Star Formation in Local Galaxies
The Astrophysical JournalTo investigate the role of morphology in galaxy evolution, we analyze the relationships between galaxy structure, star formation, and H i gas content.
Zhimin Zhou, Wenwen Wang
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MUSE Study of Two Giant Low-surface-brightness Galaxies with Compact Satellites
The Astrophysical JournalGiant low-surface-brightness galaxies (gLSBGs) are rare objects with disk radii up to 160 kpc and dynamical masses of up to the order of 10 ^12 M _⊙ . Their very existence challenges currently accepted theories of galaxy formation and evolution, as it is
Anna S. Saburova +9 more
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Resonant Friction on Disks in Galactic Nuclei
The Astrophysical JournalWe argue that resonant friction has a dramatic effect on a disk whose rotation direction is misaligned with that of its host nuclear star cluster. The disk’s gravity causes gravitational perturbation of the cluster that in turn exerts a strong torque ...
Yuri Levin
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The Astrophysical JournalBased on the magnetization, an accretion disk with a large-scale magnetic field can be separated into either standard and normal evolution or magnetically arrested disk (MAD), which are difficult to identify from observations. It is still unclear whether
Shuang-Liang Li, Wenwen Zuo, Xinwu Cao
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Gravitational Microlensing Influence on X-ray Radiation from Accretion Disk of Active Galaxies
, 2006 Gravitational microlensing is a very useful tool for investigating the innermost part of lensed quasars, especially for studying a relativistic accretion disk around a massive black hole (BH) supposed to exist in a quasar's center. Here we present a short overview of our recent investigations in this field.
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Dopo un'introduzione alla controrotazione nelle galassie a disco e al ruolo svolto a riguardo dalle fusioni con le galassie nane, presento il codice a N- corpi ChaNGa e mostro i risultati di un testo comparativo con un altro codice, gasoline. Infine, discuto i risultati di alcune simulazioni a N-corpi di fusioni tra una galassia a disco e una galassia ...
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Nuclear Rings, Nuclear Spirals, and Mass Accretion to Black Holes in Disk Galaxies
Journal of Physics: Conference Series, 2018 openaire +1 more source
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Mass accretion by the nuclei of disk galaxies
Astrophysics and Space Science, 1984In this work a model has been proposed to explain how the nucleus of a Galaxy can accumulate mass and becomes supermassive — ultimately giving way to gravitational instability leading to an explosion in the nucleus. The process may be repeated many times during the life-span of a Galaxy.
Anuradha Saha +2 more
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Mass accretion by the nuclei of disk galaxies, II
Astrophysics and Space Science, 1985Repeated explosions in the nuclei of galaxies are now accepted as observationally established phenomena. Each explosion leads to the ejection of gas from the central region of a galaxy with velocities depending on the strength of the explosive event. In the process the nucleus temporarily becomes gas-deficient.
Tara Bhattacharyya +2 more
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Counterrotating Galaxies and Accretion Disks
Annals of the New York Academy of Sciences, 1998ABSTRACT:Theoretical interest in astrophysical disks with counterrotating components of stars and/or gas has been stimulated by recently discovered counterrotating spiral and S0 galaxies. A variety of physical processes can occur in counterrotating disks.
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