Is the Diffuse Interstellar Absorption Band at 4430 Å caused by Trivalent Iron ?

Details Is the Diffuse Interstellar Absorption Band at 4430 Å caused by Trivalent Iron ? Is the Diffuse Interstellar Absorption Band at 4430 Å caused by Trivalent Iron ?

May 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970natur.226..829m&link_type=abstract

Nature, Volume 226, Issue 5248, pp. 829-830 (1970).

Computer Science

19

Scientific paper

ALTHOUGH the broad diffuse interstellar absorption bands have been known for more than 30 years, they still defy identification. It has been suggested that the bands may be caused by electronic transitions in impurity ions in grains1. Here I show that the wavelength, asymmetry and half-width of the 4430 Å band, in particular, are compatible with absorption bands marking the 6A1(S)-->4A14E(G) transitions in Fe3+ in some terrestrial silicates. The absorption spectra of Fe3+ in octahedral sites in some garnets are used for comparison, because these spectra are now reasonably well understood. Because Fe3+ is a 3d5 ion, however, the d-d spectra are similar for both octahedral and tetrahedral complexes.

Affiliated with

Also associated with

No associations

Rating

Is the Diffuse Interstellar Absorption Band at 4430 Å caused by Trivalent Iron ? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Is the Diffuse Interstellar Absorption Band at 4430 Å caused by Trivalent Iron ?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Is the Diffuse Interstellar Absorption Band at 4430 Å caused by Trivalent Iron ? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1519552