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A spectral line is a weaker or stronger region in an otherwise uniform and continuous spectrum. It may result from emission or absorption of light in...

been divided into a number of spectral series, with wavelengths given by the Rydberg formula. These observed spectral lines are due to the electron making...

The Balmer series, or Balmer lines in atomic physics, is one of a set of six named series describing the spectral line emissions of the hydrogen atom...

Spectral line shape or spectral line profile describes the form of an electromagnetic spectrum in the vicinity of a spectral line – a region of stronger...

spectral line of the hydrogen atom with a wavelength of 656.28 nm in air and 656.46 nm in vacuum. It is the first spectral line in the Balmer series and...

wavelengths of a spectral line in many chemical elements. The formula was primarily presented as a generalization of the Balmer series for all atomic electron...

of colors interspersed with spectral lines. Each line indicates a particular chemical element or molecule, with the line strength indicating the abundance...

will be assumed to be that of time. Energy spectral density describes how the energy of a signal or a time series is distributed with frequency. Here, the...

In mathematics, spectral theory is an inclusive term for theories extending the eigenvector and eigenvalue theory of a single square matrix to a much broader...

typically denoted by Ly-α, is a spectral line of hydrogen (or, more generally, of any one-electron atom) in the Lyman series. It is emitted when the atomic...

Stark demonstrates that strong electric fields will split the Balmer spectral line series of hydrogen. Nikolay Anichkov first demonstrates the significance...

In physics and chemistry, the Lyman series is a hydrogen spectral series of transitions and resulting ultraviolet emission lines of the hydrogen atom as...

i.e. they are composed of more than one wavelength of light. This spectral line broadening has many different causes. Emission spectroscopy is often...

Methods for time series analysis may be divided into two classes: frequency-domain methods and time-domain methods. The former include spectral analysis and...

Stark demonstrates that strong electric fields will split the Balmer spectral line series of hydrogen 1914 James Franck and Gustav Hertz observe atomic excitation...

(color) Operando spectroscopy Scattering theory Spectral line ratios Spectral power distribution Spectral theory Spectroscopic notation Telluric contamination...

emission-line region (LINER) is a type of galactic nucleus that is defined by its spectral line emission. The spectra typically include line emission...

The Fraunhofer lines are a set of spectral absorption lines. They are dark absorption lines, seen in the optical spectrum of the Sun, and are formed when...

star (spectral type: G-V), also often, and imprecisely, called a yellow dwarf, or G star, is a main-sequence star (luminosity class V) of spectral type...

The hydrogen line, 21 centimeter line, or H I line is a spectral line that is created by a change in the energy state of solitary, electrically neutral...