Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...236l..29c&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 236, no. 2, Sept. 1990, p. L29-L32.
Astronomy and Astrophysics
Astronomy
28
H Ii Regions, Infrared Astronomy Satellite, Infrared Spectra, Interstellar Matter, Iron Oxides, Astronomical Photometry, Asymptotic Giant Branch Stars, Interstellar Magnetic Fields, Polarized Radiation
Scientific paper
The 21-micron emission line, recently found in four post-AGB stars by Kwok et al. (1989) is found to be ubiquitous in the IRAS/LRS midinfrared spectra of H II regions, accounting for about 20 percent of the total IRAS luminosity of these regions. Based on laboratory infrared absorption spectra, it is proposed that the carriers are iron oxides, such as maghemite (gamma-Fe2O3) or magnetite (Fe3O4). The magnetite found in the Orgueil meteorite provides the best spectroscopic match. The results support the Davis-Greenstein mechanism of the interstellar polarization.
No associations
LandOfFree
The 21 micron emission band in the IRAS/LRS spectra of H II regions - Evidence of iron oxide in the interstellar medium 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 The 21 micron emission band in the IRAS/LRS spectra of H II regions - Evidence of iron oxide in the interstellar medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The 21 micron emission band in the IRAS/LRS spectra of H II regions - Evidence of iron oxide in the interstellar medium will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1399957