spectral absorption
71Closure (atmospheric science) — A closure experiment in atmospheric science is a combination of different measurement techniques to describe the current state of the investigated system as fully as possible, and to find inaccuracies in one or some of the methods involved. The… …
72magnetic resonance — Absorption or emission of electromagnetic radiation by electrons or atomic nuclei in response to certain magnetic fields. The principles of magnetic resonance are used to study the atomic and nuclear properties of matter; two common laboratory… …
73spectrale — ● spectral, spectrale, spectraux adjectif Littéraire. Qui a le caractère d un fantôme, qui ressemble à un fantôme : Pâleur spectrale. Relatif aux spectres (électriques, de fréquence, etc.). ● spectral, spectrale, spectraux (expressions) adjectif… …
74spectraux — ● spectral, spectrale, spectraux adjectif Littéraire. Qui a le caractère d un fantôme, qui ressemble à un fantôme : Pâleur spectrale. Relatif aux spectres (électriques, de fréquence, etc.). ● spectral, spectrale, spectraux (expressions) adjectif… …
75spectralline — spectral line n. An isolated bright or dark line in a spectrum produced by emission or absorption of light of a single wavelength. * * * …
76Stellar classification — In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are… …
77star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… …
78analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …
79SPECTROSCOPIE - Spectroscopie moléculaire — L’objet de la spectroscopie moléculaire est l’étude du rayonnement émis, absorbé ou diffusé par une substance formée de molécules. Cette étude permet en particulier de relier la fréquence 益 du rayonnement émis ou absorbé, la variation de… …
80Brown dwarf — Brown dwarfs are sub stellar objects which are too low in mass to sustain hydrogen 1 fusion reactions in their cores, which is characteristic of stars on the main sequence. Brown dwarfs have fully convective surfaces and interiors, with no… …
