Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...420..809m&link_type=abstract
Astronomy and Astrophysics, v.420, p.809-820 (2004)
Astronomy and Astrophysics
Astrophysics
4
Ism: Dust, Extinction, Ism: Lines And Bands, Methods: Numerical, Radiation Mechanisms: General -\ Radiative Transfer, Scattering
Scientific paper
We developed a general recipe able to extrapolate the expected photoluminescence of small particles starting from available laboratory results obtained on bulk samples. We present numerical results for the simplest case, namely a spherical, homogeneous dust particle, in the limit of strongly localised fluorescence. In particular, our theoretical derivation produces an explicit, analytical, dependence of the photoluminescence spectrum on the angle between the direction of observation and that of the incoming exciting light. We expect the present model to be a useful tool that will allow the study of photoluminescence phenomena of interstellar dust to move beyond the straight, plain, possibly misleading comparison with experimental data on bulk samples.
Appendix A is only available in electronic form at http://www.edpsciences.org
Benvenuti Piero
Malloci Giuliano
Mulas Giacomo
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