{"paper":{"title":"EMPRESS. X. Spatially resolved mass-metallicity relation in extremely metal-poor galaxies: evidence of episodic star-formation fueled by a metal-poor gas infall","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Akihiro Suzuki, Akinori Matsumoto, Akio K. Inoue, Chien-Hsiu Lee, Hajime Fukushima, Haruka Kusakabe, Hidenobu Yajima, Hiroto Yanagisawa, Hiroya Umeda, Ji Hoon Kim, Kai Murai, Keita Fukushima, Ken Mawatari, Kentaro Motohara, Kentaro Nagamine, Kimihiko Nakajima, Kiyoto Yabe, Kohei Hayashi, Kuria Watanabe, Masahiro Kawasaki, Masami Ouchi, Masato Onodera, Masayuki Umemura, Michael Rauch, Minami Nakane, Moka Nishigaki, Rin Sasaki, Seiji Fujimoto, Shinobu Ozaki, Shohei Aoyama, Shuhei Koyama, Shun Hatano, Takashi Hattori, Takashi J. Moriya, Takashi Kojima, Takatoshi Shibuya, Takuya Hashimoto, Tohru Nagao, Tomoki Saito, Tsutomu T. Takeuchi, Tsuyoshi Ishigaki, Yechi Zhang, Yi Xu, Yoshiaki Ono, Yuichi Harikane, Yuki Isobe, Yuma Sugahara, Yusei Koyama, Yutaka Hirai, Yutaka Komiyama","submitted_at":"2024-12-05T19:00:00Z","abstract_excerpt":"Using the Subaru/FOCAS IFU capability, we examine the spatially resolved relationships between gas-phase metallicity, stellar mass, and star-formation rate surface densities (Sigma_* and Sigma_SFR, respectively) in extremely metal-poor galaxies (EMPGs) in the local universe. Our analysis includes 24 EMPGs, comprising 9,177 spaxels, which span a unique parameter space of local metallicity (12+log(O/H) = 6.9 to 7.9) and stellar mass surface density (Sigma_* ~ 10^5 to 10^7 Msun/kpc^2), extending beyond the range of existing large integral-field spectroscopic surveys. Through spatially resolved em"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.04541","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2412.04541/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}