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Supernova explosions attributed to the unseen companion in several binarysystems identified by the Third Gaia Data Release (Gaia DR3) may be responsiblefor a number of well-known and well-studied features in the radio sky,including the Low-Latitude-Intermediate-Velocity Arch and theNorth-Celestial-Pole Loop. Slices from the Longitude-Latitude-Velocity datacube of the $\lambda$-21-cm galactic neutral hydrogen HI4PI survey (HI4PICollaboration et al. 2016) show multiple signatures of an expanding shell. Thesource of this expansion, which includes the Low-Latitude-Intermediate-VelocityArch on the approaching side, may be the neutron star candidate in the Gaia DR31093757200530267520 binary. If we make the simplifying assumptions that theexpansion of the cavity is uniform and spherically symmetric, then theexplosion took place about 700,000 years ago. The momentum is in reasonableagreement with recent model estimates for a supernova this old. The HI on thereceding side of this cavity is interacting with the gas approaching us on thenear side of a second cavity. The North-Celestial-Pole Loop appears to belocated at the intersection of these two expanding features. The neutron starcandidate in the Gaia DR3 1144019690966028928 binary may be (in part)responsible for this cavity. Explosions from other candidates may account forthe observed elongation along the line of sight of this second cavity. We canuse the primary star in these binaries to anchor the distances to theLow-Latitude-Intermediate-Velocity Arch and North-Celestial-Pole Loop, whichare about 167 and about 220 pc, respectively.

Supernovae Origin for the Low-Latitude-Intermediate-Velocity Arch and the North-Celestial-Pole Loop