Optical emission at 5800Angstroms in the Red Rectangle and the 5797-Angstroms diffuse interstellar band

Details Optical emission at 5800Angstroms in the Red Rectangle and the 5797-Angstroms diffuse interstellar band Optical emission at 5800Angstroms in the Red Rectangle and the 5797-Angstroms diffuse interstellar band

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.301..955d&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 301, Issue 4, pp. 955-959.

Astronomy and Astrophysics

Astronomy

7

Ism: Abundances, Dust, Extinction, Ism: Individual: Red Rectangle, Ism: Jets And Outflows, Ism: Molecules

Scientific paper

An analysis of the intensity and spatial distribution of the discrete 5800-Angstroms emission band in the spectrum of the Red Rectangle has been used to constrain the abundance and physical properties of the carrier of this emission. An origin in a large (>30C atom) molecule is indicated. This molecule is formed in situ in the Red Rectangle, but is also a component of the diffuse interstellar medium. The UV photodissociation probability for this molecule is <~10^-5 per absorbed photon, and the luminescence efficiency is in the range 10^-2-10^-3. This molecule may be a product of the dissociation of carbonaceous dust.

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