090464

X-ray quasi-periodic eruptions (QPEs) are a new phenomenon associated to non-stationary accretion onto supermassive black holes (SMBH) in low-mass galaxies. RX J1301.9+2747 (RX J1302) is one of the four galaxies where QPEs have been detected so far and the only one with QPEs lasting for decades In addition the QPEs display multiple patterns of quasi-periodicity which is a puzzling behavior never seen before. We ask for a two-orbits-long XMM-Newton observation of the galaxy RX J1302 coordinated with 20 hours of VLA radio exposures to confirm the alternate pattern of variability between cold/long and warm/short QPEs and explore the possible connections with the radio jet. [truncated! Please see actual data for full text]