tokens: I would like to thank Frank Postberg, Nicolas Altobelli, and Mario Trieloff for stimulating discussions on the composition of dust in the Local Cloud. I also thank Martin Hilchenbach, Harald Krüger, and Thomas Albin for their hospitality during my stay at Max Planck Institute for Solar System Research (MPS), where much of the writing was performed. Special thanks go to an anonymous reviewer who made careful reading and provided useful comments and suggestions. I am grateful to MPS's research fellowship and financial support for my travel expense to MPS as well as to JSPS's Grants-in-Aid for Scientific Research (#26400230). This research has made use of the SIMBAD data base, operated at CDS, Strasbourg, France.
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