{"work":{"id":"d53f1b26-41fb-45e1-b5cd-d6d52b36a345","openalex_id":null,"doi":"10.1093/mnras/224.3.801","arxiv_id":null,"raw_key":null,"title":"Case B calculations for H I and He II","authors":null,"authors_text":"Recombination-line intensities for hydrogenic ions - I","year":1987,"venue":null,"abstract":null,"external_url":"https://doi.org/10.1093/mnras/224.3.801","cited_by_count":null,"metadata_source":"doi_reference","metadata_fetched_at":"2026-06-30T03:34:12.931826+00:00","pith_arxiv_id":null,"created_at":"2026-05-08T17:33:47.837764+00:00","updated_at":"2026-06-30T03:34:12.931826+00:00","title_quality_ok":false,"display_title":"Case B calculations for H I and He II","render_title":"Case B calculations for H I and He II"},"hub":{"state":{"work_id":"d53f1b26-41fb-45e1-b5cd-d6d52b36a345","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":13,"external_cited_by_count":null,"distinct_field_count":3,"first_pith_cited_at":"2025-09-24T17:59:49+00:00","last_pith_cited_at":"2026-06-29T15:53:13+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":"2026-07-02T22:33:00.452372+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":1}],"polarity_counts":[{"context_polarity":"background","n":1}],"runs":{},"summary":{},"graph":{},"authors":[]}}