roche lobe
Word Rarity
Rare
Frequency: Zipf frequency 3.01 in modern English
16
Scrabble Score
9
Letters
1
Syllables
7
Unique Chars
Meaning
noun
The teardrop-shaped region around a star in a binary system within which orbiting material is gravitationally bound to that star.
Example Sentences
- "A further interesting situation (although not one of much relevance for this book) comes about if both stars for some reason fill their Roche lobes simultaneously."
- "Generally, mass transfer by Roche lobe overflow is required to power LMXRB's, since low mass stars never exhibit strong stellar winds."
- "If only one component accurately fills its Roche lobe the system is semi-detached. If neither fills its Roche lobe, it is detached."
Etymology
Named after Édouard Roche.