An image of a bright quasar that has been gravitationally lensed by the galaxy that appears faintly in the foreground. This phenomenon is caused by stars passing through the quasar’s light path and magnifying the light from the quasar’s accretion disc. The gravitational influence of supermassive...
The accretion disc eclipse mapping method is an astrotomographic inversion technique that makes use of the information contained in eclipse light curves to probe the structure, the spectrum and the time evolution of accretion discs in cataclysmic variables. This paper presents examples of eclipse ...
stars in the galaxy. Quasars tend to have accretion discs of gas and dust; when material from the disc falls into the Quasar, it is ejected as electromagnetic radiation. Once the accretion disk is used up, it becomes passive. Quasars tend to be at the centres of galaxies far, far away...
As a little scientific bonus, all this silicon indicates that Earth and the other rocky planets formed toward the center of the nascent Sun's accretion disc, where heavier elements concentrate. Emission spectrum of silicon (Si) Credit: Public Domain The brittle rocks that make up Earth's ...
Accretion disc! Planetary formation! Evolutionary patterns and processes! Neuroscience! Archaeology! Read some scientific articles, informative magazines, based on evidence! Read scientific books and listen to audio-books. There's so much you can learn. And possibly you've already learned something, ...
This artist’s impression depicts a rapidly spinning supermassive black hole surrounded by an accretion disc. Credit: ESA/Hubble, ESO, M. Kornmesse Origin of Theory: Singularities were first predicated as a result of Einstein’sTheory of General Relativity, which resulted in the theoretical existenc...
"Crowd"byAccretion Discis licensed underCC BY 2.0 Citizen Science Citizen science isscientific researchconducted, in whole or in part, byamateur(or nonprofessional)scientists. In taking part you can help track problems arising in the Chess such as pollution incidents and also help build up databas...
X-ray binaries are known to exhibit different spectral states which are often associated with different black hole accretion modes. The exact geometry and properties of these accretion modes is still uncertain. Recent IXPE measurements of linear polarization of X-ray emission in canonical X-ray binar...
“More precisely, their close presence deforms the red giant surface, which now has the shape of a blood drop pointing toward the white dwarf. The white dwarf extracts the matter from the tip of the giant’s surface to form a ring of matter around it, called anaccretion disc. ...
An artist's impression of the accretion disc around the supermassive black hole that powers an active galaxy. Astronomers want to know if the energy radiated from a black hole is caused by jets of material shooting away from the hole, or by the accretion disk of swirling material near the ...