Quasi-Periodic Eruptions openParQPEsclosePar in GSN 069

We have recently reported on the discovery of a new Xray variability patternfrom the nucleus of the galaxy GSNvirgul069, dubbed as QuasiPeriodic Eruptions, orQPEs (Miniutti et al. 2019, Nature, 573, 381). We propose here for furtherXMMNewton observations to better characterize this newlydiscovered variabilitypattern. Ideally, our observations will be complemented with 2 HST orbits withthe goals of\\: i) deriving the optical to Xray SED of GSNvirgul069; ii) search forpossible blue point sources other than the galactic nucleus in comparison withour Chandra data; iii) study the morphology of the poorly known host galaxy; iv)study the spatiallyresolved structure of the narrowlineregion in OvirgulIII. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]