Астронет > Форумы > Обсуждение публикаций Астронета > Мера дисперсии

Н. Г. Бочкарев · 29.03.2003 18:22

DM - величина, определяющая запаздывание импульсов излучения на низких частотах (длинных волнах) по сравнению с высокими частотами. DM равна полному числу электронов на луче зрения (от объекта до наблюдателя) в столбике сечением 1 см 2 : , где N e - концентрация электронов (количество их в ед. объёма среды), dl - элемент длины вдоль луча зрения, - ср.
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