{"paper":{"title":"Caught in the act: gas and stellar velocity dispersions in a fast quenching compact star-forming galaxy at z~1.7","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Cava, A. Dekel, A. M. Koekemoer, C. M. Eliche, C. Pacifici, D. Ceverino, D. C. Koo, D. D. Kocevski, E. McGrath, E. Toloba, F. Liu, G. Barro, G. Brammer, J. J. Fang, J. R. Primack, J. R. Trump, N. Cardiel, P. G. Perez-Gonzalez, R. C. Livermore, S. Inoue, S. L. Finkelstein, S. M. Faber, Y. Guo","submitted_at":"2015-03-24T20:00:13Z","abstract_excerpt":"We present Keck-I MOSFIRE spectroscopy in the Y and H bands of GDN-8231, a massive, compact, star-forming galaxy (SFG) at a redshift $z\\sim1.7$. Its spectrum reveals both H$_{\\alpha}$ and [NII] emission lines and strong Balmer absorption lines. The H$_{\\alpha}$ and Spitzer MIPS 24 $\\mu$m fluxes are both weak, thus indicating a low star formation rate of SFR $\\lesssim5-10$ M$_{\\odot}$ yr$^{-1}$. This, added to a relatively young age of $\\sim700$ Myr measured from the absorption lines, provides the first direct evidence for a distant galaxy being caught in the act of rapidly shutting down its st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.07164","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":""},"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"}