Do hybrid morphology radio sources form in a lopsided distribution of cold gasquestionMark

We test the hypothesis that hybrid morphology radio sources (HYMORS;GopalKrishna & Wiita 2000) feature onesided jet disruption caused bypropagation into a largescale overdensity of cold gas, through XMMNewtonobservations of B2 1404+25A and B2 1345+28 (33 and 16 ks, respectively). TheseHYMORS are intrinsic lowinclination RLQs for which the Xray spectra wouldordinarily be unabsorbed. VLBA mapping places the FRI jet on the near side in B21404+25A, and so the putative disrupting medium can be directly detected asabsorption against the core; in contrast, the FRII lobe is closer in B2 1345+28,and so a simple powerlaw Xray spectrum is anticipated. Distinct results arepredicted for alternative scenarios of HYMORS formation. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]