单词 | satellite line |
释义 | > as lemmassatellite line satellite line n. †(a) Geometry the line passing through the three points where a homogeneous third order curve is cut by tangents drawn at the three points where another line passes through the curve (obsolete); = sense 5; (b) (in spectroscopy) a secondary or additional spectral line appearing in a spectrum, typically near to and with less intensity than one of the main lines or bands; = sense 6. ΘΚΠ the world > matter > physics > atomic physics > decomposition of light, spectrum > [noun] > spectral line > caused by irregularity, spurious satellite line1857 satellite1882 1857 A. Cayley in Philos. Trans. (Royal Soc.) 147 ii. 416 It is a well-known theorem, that if at the points of intersection of a given line with a given cubic tangents are drawn to the cubic, these tangents again meet the cubic in three points which lie in a line; such line is in the present memoir termed the satellite line of the given line. 1903 Sci. Abstr. A. 6 74 The six series show six different types, one to each; and in addition we have the types of the satellite lines, which differ from one another. 2016 Physical Rev. Appl. 6 24002-6/2 The spectra show also smaller satellite lines. < as lemmas |
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