Results 141 to 150 of about 1,553,014 (257)

Modelling the high mass accretion rate spectra of GX 339-4: Black hole spin from reflection?

open access: yes, 2011
We extract all the XMM-Newton EPIC pn burst mode spectra of GX 339-4, together with simultaneous/contemporaneous RXTE data. These include three disc dominated and two soft intermediate spectra, and the combination of broad bandpass/moderate spectral ...
Ballantyne   +35 more
core   +1 more source

Type I migration in optically thick accretion discs

open access: yes, 2012
We study the torque acting on a planet embedded in an optically thick accretion disc, using global two-dimensional hydrodynamic simulations. The temperature of an optically thick accretion disc is determined by the energy balance between the viscous ...
Alibert   +42 more
core   +1 more source

Characterization of Normal and Degenerative Discovertebral Complexes Using Qualitative and Quantitative Magnetic Resonance Imaging at 4.7T: Longitudinal Evaluation of Immature and Mature Rats

open access: yesBioengineering
Purpose: We assessed the feasibility of qualitative, semiquantitative, and multiparametric quantitative magnetic resonance imaging (MRI) using a three-dimensional (3D) ultrashort echo time (3D-UTE) sequence together with 2D-T2 and 3D-T1 mapping sequences
Benjamin Dallaudière   +6 more
doaj   +1 more source

Star Discs. (3), The Effect of Coma [PDF]

open access: bronze, 1922
L. C. Martin, A. E. Conrady
openalex   +1 more source

Disc pack cleaning table saves computer time [PDF]

open access: yes, 1970
Disc pack holding table is support frame upon which computer disc pack is loaded and protective cover released. This combination permits manual off-line cleaning of disc pack storage units at any time without shutting down the computer, and eliminates on-
Guy, J. T., Sr.
core   +1 more source

An additional soft X-ray component in the dim low/hard state of black hole binaries

open access: yes, 2009
We test the truncated disc models using multiwavelength (optical/UV/X-ray) data from the 2005 hard state outburst of the black hole SWIFT J1753.5-0127. This system is both fairly bright and has fairly low interstellar absorption, so gives one of the best
Arévalo   +63 more
core   +1 more source

Trapping of Low-Mass Planets Outside the Truncated Inner Edges of Protoplanetary Discs

open access: yes, 2017
We investigate the migration of a low-mass ($\lesssim 10 M_\oplus$) planet near the inner edge of a protoplanetary disc using two-dimensional viscous hydrodynamics simulations. We employ an inner boundary condition representing the truncation of the disc
Lai, Dong, Miranda, Ryan
core   +1 more source

Gut microbiome dysbiosis is associated with lumbar degenerative spondylolisthesis in symptomatic patients

open access: yesJOR Spine
Background Lumbar degenerative spondylolisthesis (LDS), characterized as degeneration of the intervertebral disc and structural changes of the facet joints, is a condition with varying degrees of instability that may lead to pain, canal stenosis, and ...
Khaled Aboushaala   +28 more
doaj   +1 more source

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