Abstract
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.
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Karttunen, H., Kröger, P., Oja, H., Poutanen, M., Donner, K.J. (2017). Photometric Concepts and Magnitudes. In: Karttunen, H., Kröger, P., Oja, H., Poutanen, M., Donner, K. (eds) Fundamental Astronomy. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-53045-0_4
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DOI: https://doi.org/10.1007/978-3-662-53045-0_4
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