Accretion disk - Wikipedia
Accretion disks are a ubiquitous phenomenon in astrophysics; active galactic nuclei, protoplanetary disks, and gamma ray bursts all involve accretion disks. These disks very often give rise to astrophysical jets coming from the vicinity of the central object.
Radiative plasma simulations of black hole accretion flow …
2024年8月15日 · Our findings demonstrate that turbulent motions of magnetized plasma can power black-hole accretion flow coronae and that quantum electrodynamic processes control the underlying state of the...
Accretion around black holes: The geometry and spectra
2022年1月21日 · Introduction: solutions of accretion flow. It has been widely accepted that gas accretion onto black holes provides the principal power of radiations from black hole X-ray binaries (BHXRBs) and active galactic nuclei (AGNs).
Black Holes: Accretion Processes in X-ray Binaries
2023年9月20日 · Accretion is the process that describes the inflow of matter toward a central gravitational object or toward the center of an extended system. When the central object is a black hole (BH), the most spectacular observational manifestations of accretion occur.
[1401.0586] Hot Accretion Flows Around Black Holes - arXiv.org
2014年1月3日 · Hot accretion flows, the topic of this review, are virially hot and optically thin. They occur at lower mass accretion rates, and are described by models such as the advection-dominated accretion flow and luminous hot accretion flow.
Black Hole Anatomy - Science@NASA
Black holes grow by consuming matter, a process scientists call accretion, and by merging with other black holes. A stellar-mass black hole paired with a star may pull gas from it, and a supermassive black hole does the same from stars that stray too close.
Formation of an Accretion Flow | Space Science Reviews
2021年1月25日 · This current picture of accretion flow formation results from recent theoretical works synthesizing the interplay between different aspects of physics. In comparison, early analytical works correctly identified the essential processes involved in disc formation, but had difficulty developing analytic frameworks that accurately combined non ...
Black Hole Accretion | Science - AAAS
2005年1月7日 · Black holes are most often detected by the radiation produced when they gravitationally pull in surrounding gas, in a process called accretion. The efficiency with which the hot gas radiates its thermal energy strongly influences the …
Frontiers in accretion physics at high X-ray spectral resolution
2022年12月12日 · Here we review some of the outstanding questions, focusing on how the research landscape is set to be transformed at the interface between accreting supermassive black holes and their host...
Accretion is the term used by astrophysicists to describe the inflow of matter toward a central gravitating object or toward the center of mass of an extended system. Accretion is one of the most ubiquitous processes in astrophysics and is responsible for forming much of …