1820009

We propose to continue the INTEGRAL/multi-wavelengh monitoring of GRS 1915+105 with the goal to understand the tight connections that exist between the different emitting media and placed in a broader context understand accreting-ejecting sources in general. We will still take advantage of other facilities we included in the past AOs (the Sardinia and Medicina radio telescopes Insight-HXMT in the X-rays and possibly NICER). We will also include infrared/optical (ESO) through dedicated proposals. We require 45 ks pointings taken every second revolution in order to 1) probe the physics of accretion by studying the 0.5-500 keV emission of the source 2) study the origin of the high variability of GRS 1915+105 3) understand the connections between accretion and ejection processes and 4) constrain physical models of emission processes through broad-band spectral and temporal analysis. Points 1) and 2) can be done by looking into the interplay between the soft and hard X-ray emitters (JEM-X and IBIS + HXMT and/or NICER) point 3) and 4) need contemporaneous broad-band coverages and timing studies (with NICER and HXMT). Besides these specific points this monitoring will allow us to accumulate more data and thus have a better view of the (rather unknown) behaviour of this source beyond 200 keV. It should be noted that GRS 1915+105 lies in a quite crowded field with many variable sources such as X-ray binaries of all types the enigmatic microquasar SS 433 and a couple of highly absorbed IGR sources. This survey will also permit all these sources to be studied in a regular manner. Such a monitoring will greatly participate to the INTEGRAL legacy by bringing new data for a dozen of exciting Galactic sources. [truncated! Please see actual data for full text]