{"cited_by_count":64856,"description":"This cluster of papers focuses on nuclear masses, mass measurements of isotopes, atomic weights, and their implications for stellar metamorphosis, superheavy elements, and the periodic table. It includes research on neutron-rich nuclides, Penning trap spectrometry, and nucleosynthesis.","display_name":"Astronomical and nuclear sciences","domain_id":"3","external_ids":{"openalex":"https://openalex.org/T13458","wikipedia":"https://en.wikipedia.org/wiki/Nuclear_mass"},"field_id":"31","id":"T13458","keywords":[{"display_name":"atomic mass","id":"atomic-mass","score":0.8161,"url":"https://openalex.org/keywords/atomic-mass"},{"display_name":"nuclear synthesis","id":"nuclear-synthesis","score":0.2722,"url":"https://openalex.org/keywords/nuclear-synthesis"},{"display_name":"element discovery","id":"discovery-of-elements","score":0.2063,"url":"https://openalex.org/keywords/discovery-of-elements"},{"display_name":"Penning trap mass spectrometry","id":"penning-trap-mass-spectrometry","score":0.2519,"url":"https://openalex.org/keywords/penning-trap-mass-spectrometry"},{"display_name":"rutherfordium","id":"rutherfordium","score":0.3235,"url":"https://openalex.org/keywords/rutherfordium"},{"display_name":"darmstadtium","id":"darmstadtium","score":0.6627,"url":"https://openalex.org/keywords/darmstadtium"},{"display_name":"element naming","id":"element-naming","score":0.3198,"url":"https://openalex.org/keywords/element-naming"},{"display_name":"nobelium","id":"nobelium","score":0.3486,"url":"https://openalex.org/keywords/nobelium"},{"display_name":"meitnerium","id":"meitnerium","score":0.7178,"url":"https://openalex.org/keywords/meitnerium"},{"display_name":"nuclear mass data","id":"nuclear-mass-data","score":0.3748,"url":"https://openalex.org/keywords/nuclear-mass-data"},{"display_name":"synthetic elements","id":"synthetic-elements","score":0.3822,"url":"https://openalex.org/keywords/synthetic-elements"},{"display_name":"mendelevium","id":"mendelevium","score":0.419,"url":"https://openalex.org/keywords/mendelevium"},{"display_name":"NMT-QAM","id":"nmt-qam","score":0.9561,"url":"https://openalex.org/keywords/nmt-qam"},{"display_name":"seaborgium","id":"seaborgium","score":0.3598,"url":"https://openalex.org/keywords/seaborgium"},{"display_name":"element 118","id":"element-118","score":0.327,"url":"https://openalex.org/keywords/element-118"},{"display_name":"ISOLTRAP","id":"isoltrap","score":0.2909,"url":"https://openalex.org/keywords/isoltrap"},{"display_name":"atomic mass measurement","id":"atomic-mass-measurement","score":0.3149,"url":"https://openalex.org/keywords/atomic-mass-measurement"},{"display_name":"element synthesis","id":"element-synthesis","score":0.2535,"url":"https://openalex.org/keywords/element-synthesis"},{"display_name":"isotope masses","id":"isotope-masses","score":0.473,"url":"https://openalex.org/keywords/isotope-masses"},{"display_name":"bohrium","id":"bohrium","score":0.4573,"url":"https://openalex.org/keywords/bohrium"},{"display_name":"isotope discovery","id":"isotope-discovery","score":0.539,"url":"https://openalex.org/keywords/isotope-discovery"},{"display_name":"roentgenium","id":"roentgenium","score":0.6916,"url":"https://openalex.org/keywords/roentgenium"},{"display_name":"element 112","id":"element-112","score":0.3089,"url":"https://openalex.org/keywords/element-112"},{"display_name":"electromagnetic isotope separation","id":"electromagnetic-isotope-separation","score":0.2261,"url":"https://openalex.org/keywords/electromagnetic-isotope-separation"},{"display_name":"standard atomic weights","id":"standard-atomic-weights","score":0.3811,"url":"https://openalex.org/keywords/standard-atomic-weights"}],"legacy_keywords":["Nuclear Masses","Mass Measurements","Isotopes","Atomic Weights","Stellar Metamorphosis","Periodic Table","Superheavy Elements","Neutron-rich Nuclides","Penning Trap Spectrometry","Nucleosynthesis"],"openalex_id":"https://openalex.org/T13458","source_created_date":"2024-01-23T15:27:18","source_updated_date":"2026-10-17T03:02:00","subfield_id":"3106","url":"/topics/T13458","works_api_url":"https://api.openalex.org/works?filter=topics.id:T13458","works_count":18115,"label":"Astronomical and nuclear sciences","provider":"openalex","revision":"f154f0f67b521cfa","taxonomy_revision":"f050b5d4780b1289","title":"Astronomical and nuclear sciences","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"38364161868702451","address_version":"morton4x16-v1","coordinates":[3,31,3106,13458],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}