Infrared observations of the flaring maser source G358.93-0.03. SOFIA confirms an accretion burst from a massive young stellar object

Funding: VW is supported by the by the German Aerospace Center (DLR) under grant number 50OR1718. ACG has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 743029). AS acknowledges support by the Ministry of Science and Higher Education of the Russian Federation under the grant 075-15-2020-780 (contract 780-10). AV acknowledges the support from the Government of Russian Federation and Ministry of Science and Higher Education of the Russian Federation (grant N13.1902.21.0039) in the part of the data analysis