Mainz 2017 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 4: Spectroscopy of Cold Molecules and Complexes

MO 4.1: Vortrag

Montag, 6. März 2017, 17:00–17:15, N 25

C₆₀⁺ Near-IR Emissions: Astronomical Relevance. — •Dmitry Strelnikov¹, Bastian Kern², and Manfred Kappes¹ — ¹Physikalische Chemie, KIT, Karlsruhe, Germany — ²MPI for Solid State Research, Stuttgart, Germany

Recently, five Diffuse Interstellar Bands (DIBs) were assigned to C₆₀⁺ [1,2]. While investigating C₆₀⁺ in various cryogenic matrixes, we have observed LIF in the near-IR, when exciting the near-IR vibronic bands of C₆₀⁺. Power dependence measurements revealed a one-photon LIF process. In contrast, excitation in the UV does not lead to the emission of C₆₀⁺ in the vicinity of its NIR absorptions. We propose to search for C₆₀⁺ near-IR emissions in the fullerene containing reflection nebulae.

References

1. Campbell, E. K., Holz, M., Gerlich, D., and Maier, J. P. 2015, Nature, 523, 322.

2. Walker, G. A. H., Bohlender, D. A., Maier, J. P., and E. K. Campbell. 2015, ApJL, 812, L8.