منابع مشابه
The SW Sex enigma
The SW Sex stars are a class of cataclysmic variables, originally identified because they shared a number of enigmatic properties – most notably, single-peaked emission lines instead of the double-peaked lines one would expect from their high-inclination accretion discs. We present high-time-resolution spectrophotometry of the eclipsing nova-like variables SW Sex and DW UMa, two of the founding...
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Sexual reproduction entails a number of costs, and yet the majority of eukaryotes engage in sex, at least occasionally. In this article, I review early models to explain the evolution of sex and why they failed to do so. More recent efforts have attempted to account for the complexities of evolution in the real world, with selection that varies over time and space, with differences among indivi...
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We present spectrophotometry of the eclipsing nova-like variable SW Sex. The continuum is deeply eclipsed and shows asymmetries due to the presence of a bright spot. We derive a new ephemeris and, by measuring the eclipse width, we are able to constrain the inclination to i > 75 and the disc radius to RD > 0.6L1. In common with other members of its class (of which it is the proto-type), SW Sex ...
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Die Zusammenarbeitsmodelle in der Automotive Software Domäne werden immer komplexer und flexibler. Die Auftraggeber (hier ein OEM) von Steuergeräten entwickeln immer mehr Software-Teile selbst und stellen sie dem Zulieferer (hier ein Tier1) zur Integration zur Verfügung. Unter bestimmten Voraussetzungen geht es aber auch in die umgekehrte Richtung: Software, die vom Tier1 entwickelt wurde, wird...
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The presentation of a brief study of the use of Enigma Machines in Spain, during the Spanish Civil War (1936-1939) and later, until their final replacement.
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2012
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/sts294