Eddington capture sphere around luminous stars

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F12%3A%230004527" target="_blank" >RIV/47813059:19240/12:#0004527 - isvavai.cz</a>

Result on the web

<a href="http://www.aanda.org/index.php?option=com_article&access=doi&doi=10.1051/0004-6361/201220187&Itemid=129" target="_blank" >http://www.aanda.org/index.php?option=com_article&access=doi&doi=10.1051/0004-6361/201220187&Itemid=129</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201220187" target="_blank" >10.1051/0004-6361/201220187</a>

Result language

angličtina

Original language name

Eddington capture sphere around luminous stars

Original language description

Test particles infalling from infinity onto a compact spherical star with a mildly super-Eddington luminosity at its surface are typically trapped on the "Eddington capture sphere" and do not reach the surface of the star. The presence of a sphere on which radiation pressure balances gravity for static particles was first discovered some twenty five years ago. Subsequently, it was shown to be a capture sphere for particles in radial motion, and more recently also for particles in non-radial motion, in which the Poynting-Robertson radiation drag efficiently removes the orbital angular momentum of the particles, reducing it to zero. Here we develop this idea further, showing that "levitation" on the Eddington sphere (above the stellar surface) is a stateof stable equilibrium, and discuss its implications for Hoyle-Lyttleton accretion onto a luminous star. When the Eddington sphere is present, the cross-section of a compact star for actual accretion is typically less than the geometrical

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astronomy & Astrophysics

ISSN

0004-6361

e-ISSN

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Volume of the periodical

546

Issue of the periodical within the volume

OCT 2012

Country of publishing house

FR - FRANCE

Number of pages

5

Pages from-to

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UT code for WoS article

000310349100054

EID of the result in the Scopus database

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