Results 101 to 110 of about 321 (187)

MUSE Study of Two Giant Low-surface-brightness Galaxies with Compact Satellites

The Astrophysical Journal
Giant 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, Damir Gasymov, Ivan S. Gerasimov, Oleg V. Egorov, Igor V. Chilingarian, Fedor M. Kolganov, Anatoly V. Zasov, Evgenii V. Rubtsov, Anton V. Afanasiev, Mariia V. Demianenko   +9 more
doaj   +1 more source

Saturated Luminosity Of Slim Accretion Disks In Anrrow Line Seyfert 1 Galaxies

, 2018
Classical model of slim accretion disks predicts saturated luminosity which only linearly proportional to the accreting black hole mass. We should the evidence for this luminosity from the Lijiang reverberation mapping campaigns of narrow line Seyfert 1 galaxies. This lends an opportunity of using super-Eddington accreting massive black holes as cosmic
openaire   +1 more source

Resonant Friction on Disks in Galactic Nuclei

The Astrophysical Journal
We 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
doaj   +1 more source

Extragalactic Science with the Orbiting Astronomical Satellite Investigating Stellar Systems (OASIS) Observatory. [PDF]

Space Sci Rev, 2023
Aalto S, Battersby C, Chin G, Hunt LK, Rigopoulou D, Stark AA, Viti S, Walker CK.   +7 more
europepmc   +1 more source

Do All the Quasars and High-excitation Radio Galaxies (HERGs) in the 3CRR Catalog Contain a Magnetically Arrested Disk (MAD)?

The Astrophysical Journal
Based 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
doaj   +1 more source

Searching for ultra-light bosons and constraining black hole spin distributions with stellar tidal disruption events. [PDF]

Nat Commun, 2022
Du P, Egaña-Ugrinovic D, Essig R, Fragione G, Perna R.   +4 more
europepmc   +1 more source

Geodesics and gravitational waves in chaotic extreme-mass-ratio inspirals: the curious case of Zipoy-Voorhees black-hole mimickers. [PDF]

Gen Relativ Gravit, 2023
Destounis K, Huez G, Kokkotas KD.
europepmc   +1 more source

Igneous processes in the small bodies of the Solar System I. Asteroids and comets. [PDF]

iScience, 2023
Leone G, Tanaka HKM.
europepmc   +1 more source

A helium-burning white dwarf binary as a supersoft X-ray source. [PDF]

Nature, 2023
Greiner J, Maitra C, Haberl F, Willer R, Burgess JM, Langer N, Bodensteiner J, Buckley DAH, Monageng IM, Udalski A, Ritter H, Werner K, Maggi P, Jayaraman R, Vanderspek R.   +14 more
europepmc   +1 more source

Silicon isotope constraints on terrestrial planet accretion. [PDF]

Nature, 2023
Onyett IJ, Schiller M, Makhatadze GV, Deng Z, Johansen A, Bizzarro M.   +5 more
europepmc   +1 more source