Photo-Luminescence and Possible Forsterite nanoparticles Model of Extended Red Emission

Details Photo-Luminescence and Possible Forsterite nanoparticles Model of Extended Red Emission Photo-Luminescence and Possible Forsterite nanoparticles Model of Extended Red Emission

2004-03-23

arxiv.org/abs/astro-ph/0403540v1

Astronomy and Astrophysics

Astrophysics

5 pages

Scientific paper

Possible forsterite nanoparticle model of the Extended Red Emission(ERE) is proposed on the basis of photo-luminescence of forsterite after gamma-ray and neutron irradiation. Forsterite exhibits interesting thermoluminescence spectrum similar to ERE of Red Rectangle after irradiation in low temperature. It is shown that the forsterite after thermoluminescence is over exhibits photo-luminescence(PL) when Ultraviolet ray is irradiated. The structure of PL spectrum is almost similar to that of thermoluminescence. In order to explain small variations of the peak position of wavelength of ERE spectrum, possible nanoparticle model of forsterite is investigated. Our model is consistent to the ISO observation data in near and middle infrared region, which suggest the existence of forsterite.

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