{"publication_identifier":{"eissn":["1538-4357"],"issn":["0004-637X"]},"citation":{"ieee":"M. Renzo and Y. L. L. Götberg, “Evolution of accretor stars in massive binaries: Broader implications from modeling ζ Ophiuchi,” <i>The Astrophysical Journal</i>, vol. 923, no. 2. American Astronomical Society, 2021.","mla":"Renzo, M., and Ylva Louise Linsdotter Götberg. “Evolution of Accretor Stars in Massive Binaries: Broader Implications from Modeling ζ Ophiuchi.” <i>The Astrophysical Journal</i>, vol. 923, no. 2, 277, American Astronomical Society, 2021, doi:<a href=\"https://doi.org/10.3847/1538-4357/ac29c5\">10.3847/1538-4357/ac29c5</a>.","ista":"Renzo M, Götberg YLL. 2021. Evolution of accretor stars in massive binaries: Broader implications from modeling ζ Ophiuchi. The Astrophysical Journal. 923(2), 277.","ama":"Renzo M, Götberg YLL. Evolution of accretor stars in massive binaries: Broader implications from modeling ζ Ophiuchi. <i>The Astrophysical Journal</i>. 2021;923(2). doi:<a href=\"https://doi.org/10.3847/1538-4357/ac29c5\">10.3847/1538-4357/ac29c5</a>","apa":"Renzo, M., &#38; Götberg, Y. L. L. (2021). Evolution of accretor stars in massive binaries: Broader implications from modeling ζ Ophiuchi. <i>The Astrophysical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.3847/1538-4357/ac29c5\">https://doi.org/10.3847/1538-4357/ac29c5</a>","short":"M. Renzo, Y.L.L. Götberg, The Astrophysical Journal 923 (2021).","chicago":"Renzo, M., and Ylva Louise Linsdotter Götberg. “Evolution of Accretor Stars in Massive Binaries: Broader Implications from Modeling ζ Ophiuchi.” <i>The Astrophysical Journal</i>. American Astronomical Society, 2021. <a href=\"https://doi.org/10.3847/1538-4357/ac29c5\">https://doi.org/10.3847/1538-4357/ac29c5</a>."},"publication":"The Astrophysical Journal","oa_version":"Preprint","abstract":[{"text":"Most massive stars are born in binaries close enough for mass transfer episodes. These modify the appearance, structure, and future evolution of both stars. We compute the evolution of a 100-day-period binary, consisting initially of a 25 M⊙ star and a 17 M⊙ star, which experiences stable mass transfer. We focus on the impact of mass accretion on the surface composition, internal rotation, and structure of the accretor. To anchor our models, we show that our accretor broadly reproduces the properties of ζ Ophiuchi, which has long been proposed to have accreted mass before being ejected as a runaway star when the companion exploded. We compare our accretor to models of single rotating stars and find that the later and stronger spin-up provided by mass accretion produces significant differences. Specifically, the core of the accretor retains higher spin at the end of the main sequence, and a convective layer develops that changes its density profile. Moreover, the surface of the accretor star is polluted by CNO-processed material donated by the companion. Our models show effects of mass accretion in binaries that are not captured in single rotating stellar models. This possibly impacts the further evolution (either in a binary or as single stars), the final collapse, and the resulting spin of the compact object.","lang":"eng"}],"date_created":"2023-08-03T10:10:48Z","oa":1,"publisher":"American Astronomical Society","external_id":{"arxiv":["2107.10933"]},"day":"29","article_type":"original","author":[{"first_name":"M.","full_name":"Renzo, M.","last_name":"Renzo"},{"id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","last_name":"Götberg","full_name":"Götberg, Ylva Louise Linsdotter","first_name":"Ylva Louise Linsdotter","orcid":"0000-0002-6960-6911"}],"year":"2021","language":[{"iso":"eng"}],"issue":"2","month":"12","article_processing_charge":"No","extern":"1","date_published":"2021-12-29T00:00:00Z","quality_controlled":"1","title":"Evolution of accretor stars in massive binaries: Broader implications from modeling ζ Ophiuchi","volume":923,"type":"journal_article","_id":"13453","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2107.10933"}],"doi":"10.3847/1538-4357/ac29c5","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","scopus_import":"1","intvolume":"       923","publication_status":"published","status":"public","date_updated":"2023-08-21T11:59:34Z","article_number":"277","keyword":["Space and Planetary Science","Astronomy and Astrophysics"]}