{"paper":{"title":"Scaling laws for multi-object spectrographs: empirical relationships and the photonic advantage of CAWSMOS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Kalaga V. Madhav, Martin M. Roth","submitted_at":"2026-07-14T08:25:49Z","abstract_excerpt":"Conventional multi-object spectrographs (MOS) incur masses and costs that scale unfavourably with channel count~$N_\\mathrm{ch}$ and resolving power~$\\mathcal{R}$. A dataset of eight fibre-fed MOS-VIS instruments (1995--2024) is compiled and analysed. Ordinary least-squares fitting yields a mass function $M \\propto N_\\mathrm{ch}^{0.78\\pm0.28}$; the resolving-power exponent is empirically consistent with zero ($\\gamma = 0.20\\pm0.37$) but is predicted analytically to lie in $\\mathcal{R}^{0.8\\text{--}2.0}$. Leave-one-out cross-validation confirms sub-linear channel-count scaling ($\\beta\\in[0.59,1."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.12492","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/2607.12492/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"}