OMC, the Optical Monitoring Camera onboard INTEGRAL, has been monitoring the optical emission of hundreds of high energy sources during the last 20 years OMC performs optical V Johnson observations with exposure times of 10 50 and 200 seconds, simultaneously to the high energy observations obtained by the other instruments on INTEGRAL ( SPI and JEM X), downloading in addition the photometric data for around 100 objects within its 5 º ×5 º field of view In this contribution we review some representative results derived from the analysis of simultaneous optical and high energy observations using OMC data, including AGN, X ray binaries, cataclysmic variables, and even supernova explosions At the end of the INTEGRAL mission, we will compile and publish the final INTEGRAL/OMC catalogue, containing the complete ready to use light curves and variability analysis of all the sources monitored by OMC during its lifetime.
OMC activities funded by MCIN/AEI/ 10 13039 501100011033 grant PID 2019 107061 GB C 61