Radio telescope in astronomy will allow observation of spatial points that do not need to be angularly spaced, observation of extensive radio-sources, including the radio halo of galaxy clusters and extensive Milky Way sources, studying the
spectral lines in the Milky Way galaxy and other nearby galaxies, observation of the
spectral line of hydrogen at a frequency of 1420 GHz.
Correlation between
spectral line intensity and moisture of samples
Indeed, the IpDFT method is a simple and very accurate method of estimating signal parameters even if the measured signal is distorted or of low quality, but only if the
spectral line of measured signal is not distorted.
Various models for
spectral line profiles allow retrieving information on collision processes that affect the line shape.
The nature of the structural disorder in the alloys was studied via Urbach energy, obtained from optical absorption, and Raman
spectral line broadening.
He developed much of the software for automating observations and for analysing
spectral line data.
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].