{"paper":{"title":"Persistent mysteries of jet engines, formation, propagation, and particle acceleration: have they been addressed experimentally?","arxiv_id":"2009.08057","primary_cat":"astro-ph.HE","submitted_at":"2020-09-17T04:28:06+00:00","version_compiled":"v1"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13.0 on the question bank abstract-p1-20260923, exactly as returned. 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another.","hedge":{"p":0.87,"label":"asserted"},"own_p":0.06,"main_claim_p":0.03,"quantitative":false,"quantitative_p":0.15,"role_probabilities":{"gap":0.01,"method":0.0,"result":0.0,"background":0.99,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":2,"p":0.8,"id":"s2","own":false,"role":"contribution","text":"We first discuss long standing persistent mysteries that pertain the physics of each of these regimes, independent of the method used to study them.","hedge":{"p":0.78,"label":"asserted"},"own_p":0.33,"main_claim_p":0.04,"quantitative":false,"quantitative_p":0.05,"role_probabilities":{"gap":0.01,"method":0.04,"result":0.0,"background":0.14,"limitation":0.0,"future_work":0.01,"contribution":0.8,"interpretation":0.0}},{"i":3,"p":0.6,"id":"s3","own":false,"role":"background","text":"This discussion makes contact with frontiers of plasma astrophysics more generally.","hedge":{"p":0.85,"label":"asserted"},"own_p":0.22,"main_claim_p":0.03,"quantitative":false,"quantitative_p":0.02,"role_probabilities":{"gap":0.0,"method":0.01,"result":0.0,"background":0.6,"limitation":0.0,"future_work":0.0,"contribution":0.33,"interpretation":0.06}},{"i":4,"p":0.58,"id":"s4","own":false,"role":"gap","text":"While observations theory, and simulations, and have long been the main tools of the trade, what about laboratory experiments?","hedge":{"p":0.67,"label":"asserted"},"own_p":0.04,"main_claim_p":0.03,"quantitative":false,"quantitative_p":0.1,"role_probabilities":{"gap":0.58,"method":0.01,"result":0.0,"background":0.37,"limitation":0.0,"future_work":0.0,"contribution":0.04,"interpretation":0.0}},{"i":5,"p":0.93,"id":"s5","own":false,"role":"background","text":"Jet related experiments have offered controlled studies of specific principles, physical processes, and benchmarks for numerical and theoretical calculations.","hedge":{"p":0.99,"label":"asserted"},"own_p":0.06,"main_claim_p":0.05,"quantitative":false,"quantitative_p":0.07,"role_probabilities":{"gap":0.0,"method":0.01,"result":0.01,"background":0.93,"limitation":0.0,"future_work":0.0,"contribution":0.04,"interpretation":0.01}},{"i":6,"p":0.94,"id":"s6","own":false,"role":"contribution","text":"We discuss what has been done to date on these fronts.","hedge":{"p":0.64,"label":"unclear"},"own_p":0.23,"main_claim_p":0.04,"quantitative":false,"quantitative_p":0.03,"role_probabilities":{"gap":0.0,"method":0.03,"result":0.0,"background":0.02,"limitation":0.0,"future_work":0.01,"contribution":0.94,"interpretation":0.0}},{"i":7,"p":0.33,"id":"s7","own":false,"role":"gap","text":"Although experiments have indeed helped us to understand certain processes, proof of principle concepts, and benchmarked codes, they have yet to solved an astrophysical jet mystery on their own.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.13,"main_claim_p":0.56,"quantitative":false,"quantitative_p":0.11,"role_probabilities":{"gap":0.33,"method":0.0,"result":0.15,"background":0.22,"limitation":0.22,"future_work":0.0,"contribution":0.0,"interpretation":0.08}},{"i":8,"p":0.45,"id":"s8","own":false,"role":"limitation","text":"A challenge is that experimental tools used for jet-related experiments so far, are typically not machines originally designed for that purpose, or designed with specific astrophysical mysteries in mind.","hedge":{"p":0.99,"label":"asserted"},"own_p":0.11,"main_claim_p":0.06,"quantitative":false,"quantitative_p":0.09,"role_probabilities":{"gap":0.22,"method":0.0,"result":0.01,"background":0.29,"limitation":0.45,"future_work":0.01,"contribution":0.0,"interpretation":0.02}},{"i":9,"p":0.99,"id":"s9","own":false,"role":"future_work","text":"This presents an opportunity for a different way of thinking about the development of future platforms: start with 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