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ムトウ タクミ
Takumi Muto
武藤 巧 所属 千葉工業大学 情報変革科学部 教育センター（情報変革科学部） 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2014/05 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Quark beta decay in the inhomogeneous chiral phase and cooling of compact stars |
| 執筆形態 | 共著 |
| 掲載誌名 | Physical Review D |
| 掲載区分 | 国外 |
| 出版社・発行元 | American Physical Society |
| 巻・号・頁 | 89,pp.103005-1-103005-13 |
| 著者・共著者 | Toshitaka Tatsumi, Takumi Muto |
| 概要 | A novel cooling mechanism is proposed for neutron stars, based on the recent development in the studies of the QCD phase diagram. Possible appearance of the inhomogeneous chiral phase makes the quark beta decay without gluonic interaction. An estimate of the neutrino emissivity shows the order of $10^{24-26}(T/10^9)^6$(erg$¥cdot$cm$^{-3}$ $¥cdot$ s$^{-1}$) near the phase boundaries, whose efficiency is comparable with the usual quark cooling or pion cooling, but it works only in the limited density region. These features may give another cooling scenario of neutron stars. |
| DOI | 10.1103/PhysRevD.89.103005 |