WR 2 does have a companion, but it is much fainter than the primary and not thought to be the cause of the weak-lined spectrum.
12.
Doubly ionized lithium Li2 + ( Z = 3 ) and triply ionized beryllium Be3 + ( Z = 4 ) each emit a line spectrum.
13.
We model the emission-line spectrum of each spaxel as a superposition of up to three Gaussian components and analyse the physical properties of each component individually.
14.
Ultraviolet line spectrum measurements are used to discern the chemical composition, densities, and temperatures of the interstellar medium, and the temperature and composition of hot young stars.
15.
The pictures on the right show the continuous spectrum of an incandescent lamp and the discrete line spectrum of a fluorescent lamp; the former lamp has the higher CRI.
16.
It is an evolved massive star which has an emission line spectrum from a strong stellar wind caused by high luminosity and the presence of elements heavier than hydrogen in the photosphere.
17.
Therefore, flat-line spectrums in general are often referred to as " white ", whether they represent light or another type of wave phenomenon ( sound, for example, or vibration in a structure ).
18.
Classically, the Fourier coefficients give the intensity of the emitted radiation, so in quantum mechanics the magnitude of the matrix elements of the position operator were the intensity of radiation in the bright-line spectrum.
19.
The twelve channel scheme was first devised in the early 1930s to provide a line spectrum covering 60 to 108 kHz for the Type J Carrier Telephone System, an equivalent Type L systems into the late 1970s.
20.
For example, the light, or electromagnetic radiation emitted or absorbed by an atom has only certain frequencies ( or wavelengths ), as can be seen from the line spectrum associated with the chemical element represented by that atom.
