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WHAT DOES ACCRETION DISC MEAN IN ENGLISH?
An accretion disc is a structure formed by diffuse material in orbital motion around a massive central body. The central body is typically a star. Gravity causes material in the disc to spiral inward towards the central body. Gravitational and frictional forces compress and raise the temperature of the material causing the emission of electromagnetic radiation. The frequency range of that radiation depends on the central object's mass. Accretion discs of young stars and protostars radiate in the infrared; those around neutron stars and black holes in the X-ray part of the spectrum. The study of oscillation modes in accretion discs is referred to as diskoseismology.
The translations of accretion disc from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «accretion disc» in English.
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FREQUENCY OF USE OF THE TERM «ACCRETION DISC» OVER TIME
The graph expresses the annual evolution of the frequency of use of the word «accretion disc» during the past 500 years. Its implementation is based on analysing how often the term «accretion disc» appears in digitalised printed sources in English between the year 1500 and the present day.
Examples of use in the English literature, quotes and news about accretion disc
10 ENGLISH BOOKS RELATING TO «ACCRETION DISC»
Discover the use of accretion disc in the following bibliographical selection. Books relating to accretion disc and brief extracts from same to provide context of its use in English literature.
Theory of Black Hole Accretion Discs
This idea was further developed in the classic paper by Shapiro, Lightman and
Eardley (1976; SLE) who constructed a hot, optically thin model of accretion disc.
In the SLE model electrons and protons have different temperatures, with Te <C ...
Marek A. Abramowicz, Gunnlaugur Björnsson, James E. Pringle, 1998
General Relativity: An Introduction for Physicists
Information about the geometry produced by compact massive objects or black
holes can be obtained from observations of the orbits of particles in the accretiondisc that often surrounds them. As we saw in Chapter 9, the radiation efficiency of
M. P. Hobson, G. P. Efstathiou, A. N. Lasenby, 2006
Accretion Power in Astrophysics
One might at first sight wonder how this is possible, since in CVs the superhump
arises from a modulation of the intrinsic dissipation in the accretion disc, and we
have asserted in Section 5.7 and 5.10 that in LMXBs this is negligible by ...
Juhan Frank, Andrew King, Derek Raine, 2002
Structure and Emission Properties of Accretion Disks: ...
In these systems the mass-transfer indubitably takes place via an accretion disc
surrounding the neutron star. Under the assumption that LMXRB have discs
which are geometrically thin (i.e. half- thickness h -C i?disc )i and lie in the orbital
C. BERTOUT (Ed), 1991
An Introduction to Galaxies and Cosmology
This process will continue until a complete accretion disc is formed around the
black hole (Figure 3.30). The accretion disc acts to remove angular momentum
from most of the gas in the disc so that if you look at the path of a small part of one
Mark H. Jones, Robert J. Lambourne, 2004
An Introduction to Radio Astronomy
accountis onlybriefincomparison,sincewe concentrateonthoseaspectsofthe
phenomena to which radio astronomy has made a particularly significant
contribution. 13.5 The accretion disc The easiest component of our model AGN to
Bernard F. Burke, Francis Graham-Smith, 2010
Relativistic Astrophysics Gravity-Wave Astronomy
The surface of the "normal'1 star is heated by the radiation of the accretion disc,
which has a bolometric luminosity an order of magnitude greater than the
luminosity of the "normal" star. Hence, the effect of the heating of the surface of
A. M. Čerepaščuk, L. P. Grishchuk, 1989
Dynamics of Astrophysical Discs
Accretion disc theories suggest that evolution of protoplanetary discs is
determined by the efficiency of angular momentum transport. During the
formation stages, the disc dynamics are regulated by mixing of infalling material
and disc gas.
J. A. Sellwood, 2004
Accretion: A Collection of Influential Papers
A Collection of Influential Papers Aldo Treves, Laura Maraschi, M. Abramowicz.
Accretion Disc Models for Compact X-Ray Sources ). E. Pringle and M. J. Rca
Accretion Disc Models. Vol. 21, No. 1. 1972 with a particular value of R. This has
Aldo Treves, Laura Maraschi, M. Abramowicz, 1989
10.2 Summary of accretion disc theory This section summarizes the results of
accretion disc theory used in the rest of the chapter. As there are now many
reviews and books giving the derivations of these results (see, e.g., Frank et a/.33
Walter H. Lewin, Walter H. G. Lewin, Jan van Paradijs, 1997
10 NEWS ITEMS WHICH INCLUDE THE TERM «ACCRETION DISC»
Find out what the national and international press are talking about and how the term accretion disc is used in the context of the following news items.
Scientists are watching the birth of a planet
The planet remains embedded in the accretion disc of its parent star. ... trajectory perfectly in line with accretion disc is are slim, researchers say ... «UPI.com, Jul 15»
Black Hole Resumes Star Binging After 26-Year Recess
... every two to three decades, when the rate of material absorption into the black hole increases as the material piles in the accretion disc. «News Every day, Jun 15»
"Light Echoes" Prove That This Neutron Star is Weirdly Like a Black …
It's also building something we may as well call an accretion disc, sucking material from its companion star to feed its powerful jets. «io9, Jun 15»
Because black holes are generally accompanied by an accretion disc of material that rotates around them, moving faster and faster as it spirals ... «New Scientist, Jun 15»
Public Release: 10-Jun-2015 A celestial butterfly emerges from its …
... to have arisen from a collision between the stellar winds from the two stars, or be the result of an accretion disc around the companion star. «EurekAlert, Jun 15»