AST-837beginner

Spectroscopy & Spectral Analysis: Structures & Vocabulary

Spectroscopy separates light by wavelength so that continuum shape and spectral lines can be measured quantitatively. Spectroscopy is fundamental to stellar classification, redshift, chemical abundance, exoplanet atmospheres, radial velocity, plasma diagnostics, and galaxy evolution.

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Spectroscopy & Spectral Analysis: Structures & Vocabulary

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AST-836Spectroscopy & Spectral Analysis: Foundations→

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AST-838Spectroscopy & Spectral Analysis: Physical Mechanisms→

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Spectroscopy separates light by wavelength so that continuum shape and spectral lines can be measured quantitatively.

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Atoms and molecules absorb or emit at quantized energies; motion Doppler-shifts lines; collisions and pressure broaden them; magnetic fields can split or polarize transitions.

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