In order to make these observations, the scientists perused through data gathered by the Sloan Digital Sky Survey and looked for spectra of other galaxies in a narrow spectral line
called hydrogen alpha.
15) with i = 2, the spectral line
intensity can also be described as:
The nature of the structural disorder in the alloys was studied via Urbach energy, obtained from optical absorption, and Raman spectral line
He developed much of the software for automating observations and for analysing spectral line
H-Alpha light is a spectral line
centred on 656nm, and although it is the strongest emission line of ionised hydrogen, our eyes are not very sensitive to the deep red.
Fowler and Milne understood that the marginal appearance of a spectral line
could be used in determining relative concentrations and provided some indication of the minimum number of atoms necessary for appearance [45,46].
Optically thin lines can be utilized for this purpose by evaluating the emission coefficient [epsilon] of the given line, by performing a Boltzmann plot or by fitting the spectral line
shape [van den Hoek 1983, Lochte-Holtgreven 1995].
This DS Laboratories brand, including the Spectral line
of leave-in treatments and the Revita line of shampoo, conditioner and eyelash treatment, reportedly expands the treatment options available for men and women suffering hair loss and thinning.
This translation was undertaken to make accessible to readers of English a foundational paper on the theory of spectral line
shapes, "Sullo spettro di assorbimento dei gas nobili presso il limite dello spettro d'arco," U.
Millimeter-wave remote sensing serves two main functions: spectral line
detection (spectroscopy), to distinguish the spectral signature for a specific element or molecule and determine its relative abundance and speed; and radiometry, to ascertain the temperature of the radiating source.
After brief incubation with SYTOX Green stain, the nucleic acids of dead cells fluoresce bright green when excited with the 488-nm spectral line
of the argon-ion laser.
2] Cl spectral line
intensities, intensity ratios and intensity vs.