FBQS J1644+2619 - a new member of the small class of gamma-ray emitting RLNLSy1s

The discovery of gammaray emission from radioloud narrow line Seyfert 1s(RLNLSy1) by Fermi LAT confirmed that relatively small black holes with highaccretion rates and latetype host galaxies can produce relativistic jets aspowerful as those in bright blazars. This raises intriguing questions about theconditions required for jet formation. To study these conditions we propose an80 ks XMMNewton observation of the RLNLSy1 FBQS J1644+2619, a new member ofthe small class of gammaray emitting RLNLSy1s. With the proposed observationwe will be able to determine the relative contribution of the jet andcorona/accretion disc to the spectrum and, if the latter component issufficiently strong, place constraints on the properties of the accretion flow. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]