{"paper":{"title":"Astro2020 APC White Paper: The MegaMapper: a z > 2 spectroscopic instrument for the study of Inflation and Dark Energy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"astro-ph.IM","authors_text":"Adam D. Myers, Adam S. Bolton, Alex G. Kim, Alexie Leauthaud, Andreu Font-Ribera, Anthony L. Piro, Anthony R. Pullen, Arjun Dey, Ashley J. Ross, Charles Baltay, Christophe Magneville, Christopher Bebek, Christopher J. Miller, Christophe Yeche, Claire Poppett, David Brooks, David J. Schlegel, David Rabinowitz, Dennis Zaritsky, Dionysios Karagiannis, Dragan Huterer, Dustin Lang, Elizabeth Buckley-Geer, Emmanuel Schaan, Eric V. Linder, Gaston Gutierrez, Greg Aldering, Greg Tarle, Guillermo Blanc, Hans-Walter Rix, Hee-Jong Seo, Henry Heetderks, Ian Thompson, Jason X. Prochaska, Jean-Paul Kneib, Jeffrey A. Newman, Jeffrey Crane, John Moustakas, John Mulchaey, Joseph Silber, Joshua D. Simon, Julien Guy, Juna A. Kollmeier, Lado Samushia, Leopoldo Infante, Luzius Kronig, Marcelle Soares-Santos, Mario Mateo, Martin White, Matthew Johns, Michael J. Wilson, Michael L. Lampton, Michael Schubnell, Michele Liguori, Mohamed Bouri, Monica Valluri, Nathalie Palanque-Delabrouille, Nick Konidaris, Nikhil Padmanabhan, Ofer Lahav, Patrick Jelinsky, Patrick McDonald, Paul Martini, Peter Doel, Peter E. Nugent, Risa H. Wechsler, Robert Besuner, Segev Benzvi, Simone Ferraro, Solange Ramirez, Stephen A. Shectman, Stephen Bailey, Stephen M. Kent, Uros Seljak, Xiaohui Fan, Zachary Slepian, Zheng Cai","submitted_at":"2019-07-25T16:21:42Z","abstract_excerpt":"MegaMapper is a proposed ground-based experiment to measure Inflation parameters and Dark Energy from galaxy redshifts at 2<z<5. A 6.5-m Magellan telescope will be coupled with DESI spectrographs to achieve multiplexing of 20,000. MegaMapper would be located at Las Campanas Observatory to fully access LSST imaging for target selection."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.11171","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"}