{ "id": "1110.0206", "version": "v1", "published": "2011-10-02T16:58:45.000Z", "updated": "2011-10-02T16:58:45.000Z", "title": "Effects of a New Triple-α Reaction on the S-process in Massive Stars", "authors": [ "Yukihiro Kikuchi", "Masaomi Ono", "Yasuhide Matsuo", "Masa-aki Hashimoto", "Shin-ichiro Fujimoto" ], "comment": "8 pages, 5 figures. Submitted to Prog. Theor. Phys. Letters on October 2, 2011", "journal": "Prog. Theor. Phys. 127 (2012), 171-178", "doi": "10.1143/PTP.127.171", "categories": [ "astro-ph.SR" ], "abstract": "Effects of a new triple-{\\alpha} reaction rate on the s-process during the evolution of a massive star of 25 M\\odot are investigated for the first time. Although the s-process in massive stars has been believed to be established with only minor change, we find that the s-process with use of the new rate during the core He-burning is very inefficient compared to the case with the previous triple-{\\alpha} rate. However, the difference of the overproduction is found to be largely compensated by the subsequent C-burning. Since the s-process in massive stars has been attributed so far to the neutron irradiation during core He-burning, our finding reveals the importance of C-burning for the s-process during the evolution of massive stars.", "revisions": [ { "version": "v1", "updated": "2011-10-02T16:58:45.000Z" } ], "analyses": { "keywords": [ "massive star", "reaction rate", "minor change", "neutron irradiation", "first time" ], "tags": [ "journal article" ], "publication": { "journal": "Progress of Theoretical Physics", "year": 2012, "month": "Jan", "volume": 127, "number": 1, "pages": 171 }, "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "inspire": 930581, "adsabs": "2012PThPh.127..171K" } } }