Bibcode
Iglesias-Groth, S.; Cataldo, Franco; Manchado, A.
Referencia bibliográfica
Monthly Notices of the Royal Astronomical Society, Volume 413, Issue 1, pp. 213-222.
Fecha de publicación:
5
2011
Número de citas
54
Número de citas referidas
44
Descripción
The detection of C60 and C70 fullerenes in young
planetary nebulae and in reflection nebulae suggests that these
molecules are more common in certain astrophysical environments than
previously thought. The dependence on temperature of the positions and
widths of the infrared bands of the C60 and C70
fullerenes is needed for a firm qualitative detection of these molecules
in space. Furthermore, the integrated molar absorptivity Ψ (in km
mol-1) of each infrared absorption band is required for a
quantitative determination of the abundance of C60 and
C70 in space. In this paper, we report on the temperature
dependence of the wavelength shift and integrated molar absorptivity of
the infrared bands of the C60 and C70 fullerenes.
The measurements have been made in a KBr matrix in the temperature range
between -180°C and +250°C. The experimental data have been
extrapolated to derive both the infrared band shift and the integrated
molar absorptivity of the C60 and C70 fullerenes
at absolute zero temperature.
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