Dust properties of double-tailed active asteroid (6478) Gault

We would like to thank the reviewer for his/her constructive comments which helped to substantially improve the quality of the paper. F. Moreno acknowledges financial support from the State Agency for Research of the Spanish MCIU through the >Center of Excellence Severo Ochoa> award for the Instituto de Astrofisica de Andalucia (SEV-2017-0709). TRAPPIST-North is a project funded by the University of Liege, in collaboration with Cadi Ayyad University of Marrakech (Morocco). TRAPPIST-South is a project funded by the Belgian Fonds (National) de la Recherche Scientifique (F.R.S.-FNRS) under grant FRFC 2.5.594.09. F.E.J and M.G are F.R.S.-FNRS Senior Research Associates. This work is also based on observations obtained at the Southern Astrophysical Research (SOAR) telescope, which is a joint project of the Ministerio da Ciencia, Tecnologia, e Inovacao (MCTI) da Republica Federativa do Brasil, the U.S. National Optical Astronomy Observatory (NOAO), the University of North Carolina at Chapel Hill (UNC), and Michigan State University (MSU). This work was supported by contracts AYA2015-67152-R and AYA 2015-71975-REDT from the Spanish Ministerio de Economia y Competitividad (MINECO). J. Licandro gratefully acknowledges support from contract AYA2015-67772-R (MINECO, Spain).