Results 81 to 90 of about 323,430 (318)

Vacuum birefringence and the x-ray polarization from black-hole accretion disks [PDF]

, 2018
In the next decade, x-ray polarimetry will open a new window on the high-energy Universe, as several missions that include an x-ray polarimeter are currently under development. Observations of the polarization of x-rays coming from the accretion disks of
I. Caiazzo, J. Heyl
semanticscholar   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

Accreting Binary Eccentricities Follow Predicted Equilibrium Values

The Astrophysical Journal
We investigate observations of circumbinary disks (CBDs) to find evidence for an equilibrium eccentricity predicted by current binary accretion theory.
Allen R. Murray, Paul C. Duffell
doaj   +1 more source

Simulation-based Investigation of a Model for the Interaction between Stellar Magnetospheres and Circumstellar Accretion Disks [PDF]

, 2002
We examine, parametrically, the interaction between the magnetosphere of a rotating young stellar object and a circumstellar accretion disk using 2.5-dimensional (cylindrically symmetric) numerical magnetohydrodynamic simulations.
S. Matt, A. Goodson, R. Winglee, Karl-Heinz Böhm   +3 more
semanticscholar   +1 more source

Investigating accretion disk – radio jet coupling across the stellar mass scale [PDF]

Proceedings of the International Astronomical Union, 2010
AbstractRelationships between the X-ray and radio behavior of black hole X-ray binaries during outbursts have established a fundamental coupling between the accretion disks and radio jets in these systems. I begin by reviewing the prevailing paradigm for this disk-jet coupling, also highlighting what we know about similarities and differences with ...
Miller-Jones, J.C.A., Sivakoff, G.R., Altamirano, D., Körding, E.G., Krimm, H.A., Maitra, D., Remillard, R.A., Russell, D.M., Tudose, V., Dhawan, V., Fender, R.P., Heinz, S., Markoff, S., Migliari, S., Rupen, M.P., Sarazin, C.L.   +15 more
openaire   +4 more sources

Formation of the Asymmetric Accretion Disk from Stellar Wind Accretion in an S-type Symbiotic Star

The Astrophysical Journal, 2022
Abstract The accretion process in a typical S-type symbiotic star, targeting AG Draconis, is investigated through 3D hydrodynamical simulations using the FLASH code. Regardless of the wind velocity of the giant star, an accretion disk surrounding the white dwarf is always formed.
Young-Min Lee, Hyosun Kim, Hee-Won Lee
openaire   +2 more sources

Evaluating the involvement of autolysosomes in the nuclear translocation of fluorescent proteins

FEBS Open Bio, EarlyView.
Endogenously expressed fluorescent proteins can be degraded by autophagy and transported to cell nuclei via the nuclear pore complex. But in some cell lines, for example, HeLa cells which are positive for immunoreactivity of a receptor ligand, such as UCN I, in cell nuclei, fusion of autolysosome with the nuclear envelope is involved in the nuclear ...
Keiichi Ikeda
wiley   +1 more source

The Black Hole Spin Controversy [PDF]

, 2012
Astrophysical black holes are the simplest possible objects. They are completely described by only two parameters in general relativity, their mass and the specific angular momentum, spin.
KOLEHMAINEN, MARI,JOHANNA, Kolehmainen, Mari Johanna   +1 more
core  

Accretion Disks and the Formation of Stellar Systems [PDF]

, 2011
In this thesis, we examine the role of accretion disks in the formation of stellar systems, focusing on young massive disks which regulate the flow of material from the parent molecular core down to the star.
Kratter, Kaitlin Michelle
core   +2 more sources

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source