... People . Posts tagged ?Eddington? ... in calculating the mean error of a series of observations it is preferable to use the simple mean residual irrespective of sign rather than the mean square residual . Such eminent astronomer said already least absolute deviation over chi-square , if I match simple mean residual and mean square residual to relevant methodologies, in order. ... Category: Astro , Cross-Cultural , Quotes , Stat , Uncertainty | ... Category: Astro , Bad AstroStat , Jargon | ...

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• The AstroStat Slog Blog Archive Eddington versus Malmquist
• The AstroStat Slog logN-logS
• The AstroStat Slog Malmquist

... A self-consistent model for a thin accretion disk with turbulent convection is presented. ... In the gas pressure region, two distinct solutions are obtained. ... R : radiation pressure region, strong convection. ... It is interesting to note that the trend of convection to stabilize the radiation pressure dominated region, is evident even in models in which the disk viscosity is described by an parameter and the convective flux by the mixing length approach (Milsom, Chen, & Taam 1994). ...

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• XMM-Newton Joint Program Information
• Modeling of the Blue Bump Emission in High Redshift Quasars.
• Colloquia - Fall 2012

... Mass loss Recipes | ... Mass Loss is the most important "driver" of stellar evolution in massive stars. ... The final goal is to predict mass loss over the entire evolution of a massive star at all cosmological epochs. ... Very Massive Stars are objects up to 300 times the mass of the Sun. ... Mass-loss rates increase dramatically when objects cross a critical Eddington Gamma factor (Vink et al. ... I have recently edited a book on "Very Massive Stars" including a mass-loss "chapter" . ...

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• Numbers and distances
• General Information

... I note that "Z" plays an important role in what the ALFA surveys will look for: . ... low Z . nearby low mass . ... Arecibo . ... ADBS (Arecibo Dual Beam Survey): Rosenberg & Schneider 2002. ... A few sources with unobvious optical counterparts. ... Coverage wins for volume, but if you do a shallow survey you are sampling only the nearby volume at low masses. ... So need artificial test sources to find completeness. ... Total volume within survey in which source could have been detected. ...

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... Tonight's Sky . ... Behemoth black hole found in an unlikely place . Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... Mysterious quasar sequence explained . ... A growing black hole, called a quasar, can be seen at the center of a faraway galaxy in this artist's concept. ... Quasars are supermassive black holes that live at the centers of distant massive galaxies. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

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... Recherche dans le site : . Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualitУ?s . ... Accueil Lire/Voir/Ecouter Lire/Voire/Ecouter . ... Lire/Voir/Ecouter . ... Mais il s'emploie autant que possible Уљ intУ?grer des У?lУ?ments terrestres dans ses compositions photographiques. ... Nous ne saurions donc que trop recommander ce livre aux amateurs d'images du ciel qui veulent dУ?couvrir une pratique hors des sentiers battus. ...

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... Stars, in many ways, are just like people. ... Once, people regarded the Sun as a different sort of object than the stars. ... But over the past few centuries astronomers have come to recognize that the Sun is just one middle-aged member of the vast family of stars. ... By studying the Sun, the closest star, scientists have learned about all stars. ... Though we weren't around to witness the birth of our provider, we can read its early life history in the stars. ... The Sun was born. ...

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... Towards a Truly Unified Model of AGN . ... The Unified Model holds that the aspect-dependent effects primarily determine the nature of the active galactic nucleus that we observe. ... The full postscript file can be obtained here: . The PASA Latex file can be obtained here: . The postscript file of Fig 1 can be obtained here: . ...

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... The group of radio emitting X-ray binaries (XRB's), such as SS433, Cyg X-3, LSI , Cir X-1, etc., exhibit highly variable bursting radio emission interpreted as synchrotron radiation from relativistic electrons. ... In this paper, a numerical model for radio outbursts in XRB's is developed. The model is based on a process of continuous injection of relativistic particles into a spherical expanding plasmon, ejected following a transitory supercritical accretion event onto the compact star. ...

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... Б.В. Сомов . заведующий отделом . ... комн. ... старший научный сотрудник . ... научный сотрудник . ... Современные космические наблюдения Солнца обладают высоким пространственным, временным и спектральным разрешением. ... Расчеты, анализ магнитных полей в атмосфере Солнца и сравнение с многоволновыми наблюдениями активных областей и солнечных вспышек. ... 27 сентября 2013г. Отдел физики Солнца посетила съемочная группа ведущего российского телеканала "Вести-1". Фото 1 Фото 2 Фото 3 . ...

191. http://www.stecf.org/coordination/esa_eso/extrasolar/report.pdf

192. http://www.aaa.org/EyepieceFiles/aaa/2009_11_November_Eyepiece.pdf

193. http://xmm.vilspa.esa.es/docs/documents/CAL-TN-0023-2-1.ps.gz

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