Multiwavelength observations of V407 Lupi (ASASSN-16kt) - a very fast nova erupting in an intermediate polar

A part of this work is based on observations made with the Southern African Large Telescope (SALT), under the Large Science Programme on transient 2016-2-LSP-001. EA, DB, PAW, SM, and BM gratefully acknowledge the receipt of research grants from the National Research Foundation (NRF) of South Africa. AD was supported by the Slovak grant Vega 1/0335/16 AK acknowledges the National Research Foundation of South Africa and the Russian Science Foundation (project no.14-50-00043). MO had support from a NASA-Smithsonian grant for Director Discretionary Time Chandra observations APB, KLP, NPMK, and JPO acknowledge support from the UK Space Agency. JS acknowledges support from the Packard Foundation. This paper is partially based on observations obtained at the Southern Astrophysical Research (SOAR) telescope, which is a joint project of the Ministério da Ciência, Tecnologia, Inovaçãos e Comunicaçãoes (MCTIC) do Brasil, the U.S. National Optical Astronomy Observatory (NOAO), the University of North Carolina at Chapel Hill (UNC), and Michigan State University (MSU). MJD acknowledges the partial support from the UK Science & Technology Facilities Council (STFC). SS gratefully acknowledges partial support from NASA grants to ASU. We thank B. Warner and R. E. Williams, and L. Izzo for private discussion. We acknowledge the use of observations from the AAVSO International Database and we thank the observers who obtained these observations.