Program: GN-2025A-Q-229

We propose deep, integral-field unit (IFU) spectroscopic observations of Knots A and B in the closest Green Pea (GP) analog, Mrk 71, in the dwarf galaxy NGC 2366, with Gemini North GMOS/IFU using sophisticated sets of gratings and filters. Our aim is to study the physical conditions and chemical abundances of the interstellar medium surrounding Knot A, a Lyman continuum (LyC) emitter candidate, and Knot B, powering an extended superbubble. The requested IFU observations will be used to produce spatially-resolved densities, temperatures, and kinematics of low- and high-excited ions, as well as interstellar extinction maps, shock-excitation and stratification layers of various ions, and distributions of chemical abundances in the nearest GP analog and LyC emitter candidate. This information will help us to know what physical and chemical properties must prevail in distant, star-forming galaxies for high LyC escape. Existing IFU data lacks the wavelength coverage and spectral resolution to give us full details about Mrk 71. Our proposed observations will significantly improve our understanding of the radiation escaping from LyC emitters and its possible implications for the reionizing radiation budget in the early universe.