High-resolution Giant Metrewave Radio Telescope H i 21\, cm imaging of the host galaxy of FRB\, 20250316A

We report Giant Metrewave Radio Telescope (GMRT) \ imaging of NGC\, 4141, the host galaxy of FRB\, 20250316A at z=0. 0063. Our GMRT \ images have spatial resolutions, at z0. 0063, of 0. 48-8. 0~kpc, and find evidence for (i) ~a companion galaxy, LEDA\, 2582852, to the south-west, (ii) ~a nearby (27-kpc distant) Hi cloud to the south-west, (iii) ~disturbances in the Hi distributions of both NGC\, 4141 and LEDA\, 2582852, and (iv) ~high Hi column densities in the south-western outskirts of NGC\, 4141. A Sloan Digital Sky Survey spectrum shows evidence for a low metallicity and a high star-formation rate (SFR) surface density activity in the south-western disk of NGC\, 4141, while Hα-based SFR estimates over the last 10~Myr are higher than radio-based SFRs over the last 100~Myr. The above evidence indicates that NGC\, 4141 has recently acquired metal-poor gas, via either a merger or accretion, that resulted in the south-western starburst and that may have also triggered large-scale star-formation activity in NGC\, 4141, resulting in the formation of the stellar progenitor of FRB\, 20250316A and the other transients. Our highest-resolution (480~pc) GMRT Hi 21\, cm image finds no Hi 21\, cm emission from the location of FRB\, 20250316A or the nearby star-forming region, suggesting that most of the Hi here has been either ionized or converted into the molecular phase. Our non-detection of continuum emission at the location of FRB\, 20250316A yields the 3σ upper limit <3. 210^25~erg~s^-1~Hz^-1, on the 1. 4~GHz specific luminosity of a putative persistent radio source associated with FRB\, 20250316A, one of the strongest constraints on the radio luminosity of such an associated persistent radio source.