INTRINSIC REDDENING OF ETA CARINAE

Relative intensities of [Fe II] lines at different wavelengths in the spectrum of η Carinae suggest a colour excess EB-VCombining double low lineIm·2, considerably greater than that of the surrounding region. This result leads to a replacement of the synchrotron-like exponential law Fv ∼ e-av that has been inferred for the continuum in the visible and near infrared by a combination of two thermal spectra. © 1969 Nature Publishing Group.