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: http://xmm.vilspa.esa.es/sas/7.0.0/doc/ssclib/node39.html
Дата изменения: Wed Jun 28 23:12:27 2006 Дата индексирования: Sat Dec 22 08:34:43 2007 Кодировка: Поисковые слова: ультрафиолетовое излучение |
These subroutines calculate the power (in watts) radiated per unit surface area (m2) per unit solid angle (sr) by a black body at temperature='kelvin'. The power can be calculated either per unit frequency, at a given frequency (both in hertz), or per unit wavelength (in metres) at a given supplied wavelength (in angstroms).
The subroutines are designed to be portable and as fast yet as accurate as possible.