{"paper":{"title":"N$_2^+$ and CO$^+$ in Comets 122P/1995 S1 (deVico) and C/1995 O1 (Hale-Bopp)","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Anita L. Cochran, Edwin S. Barker, William D. Cochran","submitted_at":"2000-03-08T23:52:22Z","abstract_excerpt":"We observed comets 122P/1995\\,S1 (deVico) and C/1995\\,O1 (Hale-Bopp) with high spectral resolving power in order to determine the ratio of N$_2^+$/CO$^+$ in their comae. While we clearly detected the CO$^+$ in both of these comets, no N$_2^+$ was detected in either comet. From these spectra, we derive sensitive upper limits for N$_2^+$/CO$^+$. These upper limits are substantially below other reported detections of N$_2^+$/CO$^+$ in other comets. We discuss the prior N$_2^+$ detections and compare them with our observations. The abundance of N$_2$ in comets is important to our understanding of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0003122","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/astro-ph/0003122/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"}