Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Aerospace | The broadening of either an emission line or an absorption line due to random motions of molecules of the gas that is emitting or absorbing the radiant energy. See pressure broadening.In the case of an emitting gas, for example, those molecules which are approaching the observer as they emit quanta of radiant energy will, because of the Doppler effect, appear to send out a train of waves of slightly shorter wavelength than that characteristic of a stationary molecule, while receding molecules will appear to emit slightly longer wavelengths. The net effect, averaged over many molecules, is to superimpose, on the natural line width, a bell-shaped broadening that is proportional to the square root of the absolute temperature of the gas. (references) |
Source: compiled by the editor from various references; see credits. | |
Crosswords: DOPPLER BROADENING |
| Specialty definitions using "DOPPLER BROADENING": line width ♦ pressure broadening ♦ telluric lines, thermal motions. (references) |
Hexadecimal (or equivalents, 770AD-1900s) (references)44 4F 50 50 4C 45 52 42 52 4F 41 44 45 4E 49 4E 47 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01000100 01001111 01010000 01010000 01001100 01000101 01010010 00100000 01000010 01010010 01001111 01000001 01000100 01000101 01001110 01001001 01001110 01000111 |
HTML Code (1990) (references)D O P P L E R   B R O A D E N I N G |
ISO 10646 (1991-1993) (references)0044 004F 0050 0050 004C 0045 0052 0042 0052 004F 0041 0044 0045 004E 0049 004E 0047 |
Encryption (beginner's substitution cypher): (references)38495050463952236524935383948434841 |
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Copyright © Philip M. Parker, INSEAD. Terms of Use.
