Abstract
We show that low-temperature fluorescence spectra of large high-quality ${\mathrm{C}}_{60}$ single crystals are mainly composed of several, independent pairs of ${\mathit{T}}_{1\mathit{g}}$ false origins. In analogy to the case of anthracene single crystals the series of emission bands can be interpreted in terms of exciton (Frenkel) emission from so-called X traps. Temperature dependent luminescence experiments support this interpretation.
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