Most astronomical observations utilise electromagnetic radiation in one way or another. We can obtain information on the physical nature of a radiation source by studying the energy distribution of its radiation. We shall now introduce some basic concepts that characterise electromagnetic radiation.
CITATION STYLE
Karttunen, H., Kröger, P., Oja, H., Poutanen, M., & Donner, K. J. (2017). Photometric Concepts and Magnitudes. In Fundamental Astronomy (pp. 91–102). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-662-53045-0_4
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