2013 Fiscal Year Final Research Report
Mixed phase in the first-order phase transition of nuclear matter at finite temperature
| Project/Area Number |
23540325
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
|---|
| Research Institution | Japan Atomic Energy Agency |
|---|
Principal Investigator |
MARUYAMA Toshiki 独立行政法人日本原子力研究開発機構, 原子力科学研究部門 先端基礎研究センター, 研究主幹 (50354882)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
TATSUMI Toshitaka 京都大学, 理学研究科, 助教 (40155099)
|
|---|
| Project Period (FY) |
2011 – 2013
|
| Keywords | 中性子星 / 超新星コア / 原子核物質 / 相転移 / パスタ構造 / 有限温度 |
|---|
| Research Abstract |
We have explored the properties and structures of nuclear matter relevant to the core of supernovae. Particularly, the appearance of mixed phase of liquid and gas was studied in detail. The cooling process of neutron stars by the Urca process was studied by considering hadron-quark mixed phase. We succeeded in explaining the cooling of Cas A neutron star.
We have revised our model of hadron-quark mixed phase at high density and succeeded in explaining the mass and radius of neutron star as heavy as twice the solar mass.
|
