{"work":{"id":"74fbb501-48ef-4751-acb0-a5d0295dfa6f","openalex_id":null,"doi":null,"arxiv_id":"1611.00037","raw_key":null,"title":"The DESI Experiment Part II: Instrument Design","authors":null,"authors_text":"DESI Collaboration , A","year":2016,"venue":"astro-ph.IM","abstract":"DESI (Dark Energy Spectropic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. The DESI instrument is a robotically-actuated, fiber-fed spectrograph capable of taking up to 5,000 simultaneous spectra over a wavelength range from 360 nm to 980 nm. The fibers feed ten three-arm spectrographs with resolution $R= \\lambda/\\Delta\\lambda$ between 2000 and 5500, depending on wavelength. The DESI instrument will be used to conduct a five-year survey designed to cover 14,000 deg$^2$. This powerful instrument will be installed at prime focus on the 4-m Mayall telescope in Kitt Peak, Arizona, along with a new optical corrector, which will provide a three-degree diameter field of view. The DESI collaboration will also deliver a spectroscopic pipeline and data management system to reduce and archive all data for eventual public use.","external_url":"https://arxiv.org/abs/1611.00037","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-05-24T15:54:39.234486+00:00","pith_arxiv_id":"1611.00037","created_at":"2026-05-08T18:18:53.885864+00:00","updated_at":"2026-05-24T15:54:39.234486+00:00","title_quality_ok":true,"display_title":"Aghamousa , J","render_title":"Aghamousa , J"},"hub":{"state":{"work_id":"74fbb501-48ef-4751-acb0-a5d0295dfa6f","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":27,"external_cited_by_count":null,"distinct_field_count":4,"first_pith_cited_at":"2019-07-25T16:21:42+00:00","last_pith_cited_at":"2026-05-18T18:00:59+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-06-03T01:35:26.998764+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":8},{"context_role":"dataset","n":2},{"context_role":"method","n":1}],"polarity_counts":[{"context_polarity":"background","n":8},{"context_polarity":"use_dataset","n":2},{"context_polarity":"use_method","n":1}],"runs":{},"summary":{},"graph":{},"authors":[]}}