{"paper":{"title":"Luminosity and stellar mass functions of faint photometric satellites around spectroscopic central galaxies from DESI Year-1 Bright Galaxy Survey","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Aaron Meisner, Arjun Dey, Ashley J. Ross, Axel de la Macorra, Benjamin Alan Weaver, Carlos Frenk, Claire Poppett, David Brooks, Davide Bianchi, David Schlegel, David Sprayberry, Enrique Gaztanaga, Eusebio Sanchez, Francisco Prada, Gaston Gutierrez, Graziano Rossi, Gregory Tarle, Hee-Jong Seo, Hu Zou, Ignasi P\\'erez-R\\`afols, Jaime E. Forero-Romero, Jessica Nicole Aguilar, Jiaxin Han, Jiaxi Yu, John Moustakas, Joseph Harry Silber, Klaus Honscheid, Kun Xu, Laurent Le Guillou, Malgorzata Siudek, Marc Manera, Martin Landriau, Mustapha Ishak, Oleg Y. Gnedin, Peter Doel, Ramon Miquel, Samuel G. Moore, Satya Gontcho A Gontcho, Sergey E. Koposov, Seshadri Nadathur, Shaun Cole, Steven Ahlen, Theodore Kisner, Todd Claybaugh, Wenting Wang, Xiaohu Yang, Yipeng Jing, Yirong Wang, Yizhou Gu, Zhenlin Tan","submitted_at":"2025-03-05T09:52:06Z","abstract_excerpt":"We measure the luminosity functions (LFs) and stellar mass functions (SMFs) of photometric satellite galaxies around spectroscopically identified isolated central galaxies (ICGs). The photometric satellites are from the DESI Legacy Imaging Surveys (DR9), while the spectroscopic ICGs are selected from the DESI Year-1 BGS sample. We can measure satellite LFs down to $r$-band absolute magnitudes of $M_{r,\\mathrm{sat}}\\sim-7$, around ICGs as small as $7.1<\\log_{10}M_{\\ast,\\mathrm{ICG}}/\\mathrm{M_\\odot}<7.8$, with the stellar mass of ICGs measured by the DESI Fastspecfit pipeline. The satellite SMF"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.03317","kind":"arxiv","version":2},"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/2503.03317/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"}