Results 41 to 50 of about 387,146 (299)
, 2015 The Central Asian Orogenic Belt records the accretion and convergence of three collage systems that were finally rotated into two major oroclines. The Mongolia collage system was a long, N–S-oriented composite ribbon that was rotated to its current ...
W. Xiao +8 more
semanticscholar +1 more source
Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. IX. 10 New Observations of Reverberation Mapping and Shortened Hβ Lags [PDF]
, 2018 As one paper in a series reporting on a large reverberation mapping campaign of super-Eddington accreting massive black holes (SEAMBHs) in active galactic nuclei (AGNs), we present the results of 10 SEAMBHs monitored spectroscopically during 2015–2017 ...
P. Du +12 more
semanticscholar +1 more source
The Relationship between Mg ii Broad Emission and Quasar Inclination Angle
Frontiers in Astronomy and Space Sciences, 2017 Several observed spectral properties of quasars are believed to be influenced by quasar orientation. In this investigation we examine the effect of orientation on the Mg ii line located at 2,798 Å in a sample of 36 radio-loud quasars, with orientation ...
Conor Wildy, Bozena Czerny
doaj +1 more source
, 2003 The Solonker suture records the termination of the central Asian Orogenic Belt (CAOB). However, tectonic development of the Solonker suture is poorly understood.
W. Xiao, B. Windley, Jie Hao, M. Zhai
semanticscholar +1 more source
Variability of the Accretion Stream in the Eclipsing Polar EP Dra [PDF]
, 2003 We present the first high time resolution light curves for six eclipses of the magnetic cataclysmic variable EP Dra, taken using the superconducting tunnel junction imager S-Cam2.
Bridge, C. M. +5 more
core +3 more sources
Super-Eddington Accretion Disks around Supermassive Black Holes [PDF]
Astrophysical Journal, 2017 We use global three-dimensional radiation magnetohydrodynamical simulations to study accretion disks onto a black hole with accretion rates varying from to . We initialize the disks with a weakly magnetized torus centered at either 50 or 80 gravitational
Yan-Fei 飞 Jiang 姜 燕 +2 more
semanticscholar +1 more source
Instability, turbulence, and enhanced transport in accretion disks
, 1997 Recent years have witnessed dramatic progress in our understanding of how turbulence arises and transports angular momentum in astrophysical accretion disks.
S. Balbus, J. Hawley
semanticscholar +1 more source
Universe, 2019 For systems with extremely low accretion rate, such as Galactic Center Sgr A* and M87 galaxy, the ion collisional mean free path can be considerably larger than its Larmor radius. In this case, the gas pressure is anisotropic to magnetic field lines.
Hui-Hong Deng, De-Fu Bu
doaj +1 more source
A New Parameter In Accretion Disk Model
, 2000 Taking optically thin accretion flows as an example, we investigate the dynamics and the emergent spectra of accretion flows with different outer boundary conditions (OBCs) and find that OBC plays an important role in accretion disk model.
AF Illarionov +16 more
core +1 more source
Accretion onto Intermediate Mass Black Holes Regulated by Radiative Feedback I. Parametric Study for Spherically Symmetric Accretion [PDF]
, 2011 We study the effect of radiative feedback on accretion onto intermediate mass black holes (IMBHs) using the hydrodynamical code ZEUS-MP with a radiative transfer algorithm.
Abel +45 more
core +1 more source