Results 61 to 70 of about 491,052 (394)
Fountain-driven gas accretion by the Milky Way
Accretion of fresh gas at a rate of ∼ 1M☉yr−1 is necessary in star-forming disc galaxies, such as the Milky Way, in order to sustain their star-formation rates.
Ciotti L. +5 more
doaj +1 more source
Accretion disc atmospheres and winds in low‐mass X‐ray binaries [PDF]
In the last decade, X-ray spectroscopy has enabled a wealth of discoveries of photoionised absorbers in X-ray binaries. Studies of such accretion disc atmospheres and winds are of fundamental importance to understand accretion processes and possible ...
M. D. Trigo, L. Boirin
semanticscholar +1 more source
The Impact of Accretion Disc Winds on the Optical Spectra of Cataclysmic Variables [PDF]
Here, I present Monte Carlo radiative transfer simulations designed to assess the likely impact of accretion disc winds on the optical spectra of high-state CVs.
J. Matthews +4 more
semanticscholar +1 more source
Line-driven disc wind in near-Eddington active galactic nuclei: decrease of mass accretion rate due to powerful outflow [PDF]
Based on recent X-ray observations, ultrafast outflows from supermassive black holes are expected to have enough energy to dramatically affect their host galaxy but their launch and acceleration mechanisms are not well understood.
Mariko Nomura, K. Ohsuga, C. Done
semanticscholar +1 more source
One of the open problems in black hole physics is testing spacetime around black holes through astrophysical observations in the strong field regime. In fact, black holes cannot produce radiation themselves in the electromagnetic spectrum.
Sardor Murodov +3 more
doaj +1 more source
Photon bubbles in accretion discs [PDF]
7 pages, LaTeX, 1 eps figure, mn.sty, submitted to ...
openaire +2 more sources
Accretion Disc Wind Variability in the States of the Microquasar GRS 1915+105
Continuing our study of the role and evolution of accretion disc winds in the microquasar GRS 1915+105, we present high-resolution spectral variability analysis of the beta and gamma states with the Chandra High Energy Transmission Grating Spectrometer ...
Andrew J. Petschek +62 more
core +1 more source
Mass-loss from advective accretion disc around rotating black holes [PDF]
We examine the properties of the outflowing matter from an advective accretion disc around a spinning black hole. During accretion, rotating matter experiences centrifugal pressure supported shock transition that effectively produces a virtual barrier ...
R. Aktar, Santabrata Das, A. Nandi
semanticscholar +1 more source
Outbursts of irradiated accretion discs [PDF]
5 pages, 2 figures. Accepted for publication in MNRAS.
openaire +3 more sources
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source

