The prospects for astronomical optical rotatory dispersion studies

Details The prospects for astronomical optical rotatory dispersion studies The prospects for astronomical optical rotatory dispersion studies

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...208..365g&link_type=abstract

Astrophysical Journal, vol. 208, Sept. 1, 1976, pt. 1, p. 365-368. ERDA-sponsored research.

Astronomy and Astrophysics

Astrophysics

Alanine, Interstellar Gas, Molecular Gases, Polarization Characteristics, Handedness, Interstellar Matter, Isomers, Optical Activity, Polarimeters

Scientific paper

The measurement of the relative populations of right- and left-handed isomers of interstellar optically active molecules is considered. Emphasis is given to the amino acids alanine. It is shown that a column density of alanine molecules in pure D or L form of about 10 to the 17th to 10 to the 18th power per sq cm will be required to detect the ultraviolet optical-rotatory-dispersion (ORD) effect in alanine with a polarimeter that can detect a relative linear-polarization position-angle difference of 0.1 deg. Unusually strong infrared vibrational ORD is preferable to the ultraviolet effect.

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