UV and vacuum UV spectra of organic extract from Yamato carbonaceous chondrites

Details UV and vacuum UV spectra of organic extract from Yamato carbonaceous chondrites UV and vacuum UV spectra of organic extract from Yamato carbonaceous chondrites

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.229p..45y&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 229, Dec. 1, 1987, p. 45P-48P. Research supported by th

Astronomy and Astrophysics

Astronomy

2

Absorption Spectra, Carbonaceous Chondrites, Meteoritic Composition, Organic Materials, Ultraviolet Spectra, Vacuum Spectroscopy, Cosmic Dust, Spectrum Analysis

Scientific paper

Earlier UV measurement of the absorbance of organic extract from Murchison carbonaceous chondrite showed a shoulder close to 220 nm, which is sometimes interpreted as evidence which supports the organic nature of interstellar grains. Here, UV and vacuum UV absorbance spectra of organic extracts from Yamato carbonaceous chondrites are presented. The most conspicuous peak is found at 190 nm, and only a weak shoulder is visible at 220 nm. The result indicates that organic dust grains are not likely to be carriers of the well-known 220 nm peak of the IS extinction curve.

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