Teach Astronomy - Contact Binary
Автор: Teach Astronomy
Загружено: 2010-07-23
Просмотров: 212
Описание:
http://www.teachastronomy.com/
Most binary stars orbit slowly with a large distance between the two stars. However, a small fraction of binary systems are in close, tight, rapid orbits. In this situation mass transfer can occur from one star to the other. The system of two co-orbiting stars is surrounded by two teardrop regions of space called Roche lobes. The cross-section of these imaginary regions of space is like the figure eight. At the point of contact between the two stars mass can flow in one direction or the other. This situation is called a contact binary.
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