Search for Astrophysical Electron Antineutrinos in Super-Kamiokande with 0.01% Gadolinium-loaded Water - Harada, M; Abe, K; Bronner, C; Hayato, Y; Hiraide, K; Hosokawa, K; Ieki, K; Ikeda, M; Kameda, J; Kanemura, Y; Kaneshima, R; Kashiwagi, Y; et al. (ASTROPHYSICAL JOURNAL LETTERS, 2023)