FUNCTION dustem_get_emission_conversion_factor,bidon
wav=dustem_get_wavelengths()
;conversion factor to be multipied by to go from Fortran spectrum unit () into MJy/sr for NH=(*!dustem_HCD)
fact = 1.e4*(*!dustem_HCD)/(4.*!pi)/(3.e8/1.e-6/wav)*1.e20/1.e7
RETURN,fact
END