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Following the discovery of radio pulsars at the position of Fermi-LATunassociated sources by the TRAPUM group, we conduct Swift-XRT observations ofsix of those 4FGL sources to determine if any pulsar-like X-ray sources arepresent and to confirm the reported detection of an X-ray counterpart viaeROSITA at 4FGL J1803.1-6708. At two of the six targets, we detect no X-raysources at the TRAPUM radio position, placing an upper limit on the 0.3-10.0keV flux. At 4FGL J1803.1-6708 we find an X-ray source at the TRAPUM andeROSITA position. At 4FGL J1858.3-5424 we find a new X-ray counterpart at theTRAPUM position with S/N=4.17, but also detect a distinct and separate X-raysource. At 4FGL J1823.8-3544 and 4FGL J1906.4-1757 we detect no X-ray flux atthe TRAPUM positions, but we do detect separate X-ray sources elsewhere in theFermi error ellipse. At these last two targets, our newly detected Swiftsources are possible alternatives to the radio pulsar associations proposed byTRAPUM. Our findings confirm several of the discoveries reported by the TRAPUMgroup but suggest that further observations and investigations are necessary toconfirm the low-energy counterpart of several unassociated sources.

Swift Follow-Up of Reported Radio Pulsars at Fermi 4FGL Unassociated Sources