The EDdington Mission
نویسندگان
چکیده
منابع مشابه
Planet Detection Capabilities of the Eddington Mission
Eddington is a space mission for extrasolar planet finding and for asteroseismic observations. It has been selected by ESA as an F2/F3 reserve mission with a potential implementation in 2008-13. Here we describe Eddington’s capabilities to detect extrasolar planets, with an emphasis on the detection of habitable planets. Simulations covering the instrumental capabilities of Eddington and the st...
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We analytically derive a relativistic variable Eddington factor in the relativistic radiative flow, and found that the Eddington factor depends on the velocity gradient as well as the flow velocity. When the gaseous flow is accelerated and there is a velocity gradient, there also exists a density gradient. As a result, an unobstructed viewing range by a comoving observer, where the optical dept...
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We present a toy model of mildly super-Eddington, optically thin accretion onto a compact star in the Schwarzschild metric, which predicts periodic variations of luminosity when matter is supplied to the system at a constant accretion rate. These are related to the periodic appearance and disappearance of the Eddington Capture Sphere. In the model the frequency is found to vary inversely with t...
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We review the physics of continuum-driven mass loss and the role it plays in η Carinae and other LBVs. Unlike line-driven mass loss, which is inherently limited by self-shadowing, continuum driving can in principle lead to mass-loss rates up to the “photon-tiring” limit, for which the energy to lift the outflow becomes equal to the stellar luminosity. We discuss how luminous atmospheres give ri...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 2004
ISSN: 0074-1809
DOI: 10.1017/s0074180900195804