{"corpus_id":118952272,"paper_sha":"7b2e401beecbe4192778d7c8c0d619ad6040548f","doi":"10.3847/1538-3881/aae09a","arxiv_id":"1801.10254","pmid":null,"pmcid":null,"mag_id":2785973684,"dblp_id":null,"acl_id":null,"title":"Implications of Captured Interstellar Objects for Panspermia and Extraterrestrial Life","year":2018,"publication_date":"2018-01-30","venue":"Astronomical Journal","journal":{"name":"The Astronomical Journal","pages":null,"volume":"156"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Physics","Environmental Science"],"reference_count":115,"citation_count":32,"influential_citation_count":0,"is_open_access":true,"arxiv_categories":["astro-ph.EP"],"arxiv_license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","arxiv_journal_ref":"Astron. J., Vol. 156, No. 5, 193 (2018)","mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":"https://iopscience.iop.org/article/10.3847/1538-3881/aae09a/pdf","s2_open_access_landing_url":"https://www.semanticscholar.org/paper/7b2e401beecbe4192778d7c8c0d619ad6040548f","s2_open_access_license":null,"s2_open_access_status":"BRONZE","pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"We estimate the capture rate of interstellar objects by means of three-body gravitational interactions. We apply this model to the Sun–Jupiter system and the Alpha Centauri A&B binary system, and find that the radius of the largest captured object is a few tens of km and Earth-sized, respectively. We explore the implications of our model for the transfer of life by means of rocky material. The interstellar comets captured by the “fishing net” of the solar system can be potentially distinguished by their differing orbital trajectories and ratios of oxygen isotopes through high-resolution spectroscopy of water vapor in their tails.","claims":[{"public_id":"cl_f39cd1b776dc824da56d96cf0f0f7058","status":"active","text":"Applying the model to the Sun–Jupiter system yields a largest captured object radius of a few tens of kilometers, while the Alpha Centauri A&B binary system yields an Earth-sized largest captured object.","confidence":0.97,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_f39cd1b776dc824da56d96cf0f0f7058"},{"public_id":"cl_66b2cfec6cfb7f39c983cf131cccd68e","status":"active","text":"Captured interstellar comets in the solar system may be identifiable by distinct orbital trajectories and oxygen-isotope ratios measured with high-resolution spectroscopy of water vapor in their tails.","confidence":0.95,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_66b2cfec6cfb7f39c983cf131cccd68e"},{"public_id":"cl_30bcef7d9ed9d3ddb382877a3ce5e6ae","status":"active","text":"Three-body gravitational interactions provide an estimate of the capture rate of interstellar objects.","confidence":0.98,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_30bcef7d9ed9d3ddb382877a3ce5e6ae"}],"concepts":[{"public_id":"co_001d58e9000a957e57ef0b601fe5f1af","status":"active","name":"largest captured object radius","description":"The radius of the largest interstellar object predicted to be captured in a given 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