On the properties of dust and gas in the environs of V838 MonocerotisK. M. Exter, N. L. J. Cox, B. M. Swinyard, M. Matsuura, A. Mayer, E. De Beck and L. DecinA&A, 596 (2016) A96DOI: https://doi.org/10.1051/0004-6361/201628235