Fr.: lame séparatrice
A partially reflecting mirror which permits a part of the light beam to pass through and reflects the rest.
→ beam; splitter, from to split, from M.Du. splitten, from P.Gmc. *spl(e)it-, PIE *(s)plei- "to split, splice."
Fâqgar, from fâq "split, breach, division" + tâbé→ beam.
Fr.: dédoublement magnétique
A process whereby the (internal) → magnetic field of a star modifies the → pulsations by lifting some of its degeneracy. Instead of just one pulsation frequency, a multiplet of frequencies is then observed. This effect was proposed as a possible explanation for the observed frequency pattern of → Beta Cephei. In practice, the magnetic splitting is difficult to observe, because of the very small expected frequency difference between the peaks. However, when unaccounted for, it may lead to a wrong mode identification. The current best candidate to detect magnetic splitting is → HD 43317, since this star displays two close frequency patterns (Buysschaert et al., 2017, astro-ph/1709.02619).
1) fâq (#); 2) fâqidan
Fr.: 1) fente; 2) fendre
1) A crack, tear, or fissure. The act of splitting.
From M.Du. splitten, from P.Gmc. *spl(e)it- (cf. Dan., Fris. splitte, O.Fris. splita, Ger. spleißen "to split").
1) Fâq "a part of something separated in two sections, such as a beard, a
quill pen, etc."
Fr.: clivage, fissure, rupture
The act or instance of being split or causing something to split. → splitting of energy level.
Verbal noun of → split.
splitting of energy level
fâqeš-e tarâz-e kâruž
Fr.: dédoublement d'un niveau d'énergie