The project entails investigations of astrophysical reactions in explosive stellar phenomena, using direct and indirect experimental techniques

该项目需要使用直接和间接实验技术来研究爆炸性恒星现象中的天体物理反应

• 批准号: 1944090
• 金额: --
• 依托单位: University of Surrey
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1944090
• 关键词: project; entails; investigations; astrophysical; reactions

Classical novae are among the most frequent and violent stellar explosions to occur in our Galaxy, thereby playing a key role in its chemical evolution. Recently, remarkable advances in astronomy and meteoritics have produced a wealth of observational data on these cataclysmic astronomical events, giving us unprecedented insight into their properties. However, our understanding of this latest data is severely hindered by large uncertainties in the underlying nuclear physics processes involving unstable nuclei that drive these stellar scenarios. Modern state-of-the-art radioactive beams facilities provide the means to resolve this issue through their ability to recreate the conditions that occur in explosive stellar phenomena in a terrestrial laboratory. In particular, it is now possible to obtain direct measures of astrophysical reactions involving unstable nuclei that govern both the path of nucleosynthesis and rate of energy release in classical novae. In this project, astrophysical reactions influencing key nova observables will be investigated at world-leading radioactive beam facilities such as TRIUMF and CERN with an emphasis on direct measurements.

经典新星是银河系中发生最频繁、最猛烈的恒星爆炸之一，因此在其化学演化中发挥着关键作用。最近，天文学和陨石学的显着进步产生了关于这些灾难性天文事件的大量观测数据，使我们对它们的特性有了前所未有的了解。然而，我们对这一最新数据的理解受到了潜在核物理过程的巨大不确定性的严重阻碍，其中涉及驱动这些恒星场景的不稳定核。现代最先进的放射性束设施能够在地面实验室中重现爆炸性恒星现象中发生的条件，从而提供了解决这一问题的方法。特别是，现在可以获得涉及不稳定核的天体物理反应的直接测量，这些不稳定核控制着经典新星的核合成路径和能量释放速率。在该项目中，将在TRIUMF和CERN等世界领先的放射性束设施中研究影响关键新星观测的天体物理反应，重点是直接测量。

项目成果

Multi-quasiparticle sub-nanosecond isomers in 178W

• DOI: 10.1016/j.physletb.2019.135140
• 发表时间: 2020-02
• 期刊: Physics Letters B
• 影响因子: 4.4
• 作者: M. Rudigier;P. Walker;R. Canavan;Z. Podolyák;P. Regan;P. Söderström;M. Lebois;J. Wilson;N. Jovančević;A. Blazhev;J. Benito;S. Bottoni;M. Brunet;N. Cieplicka-Oryńczak;S. Courtin;D. Doherty;L. Fraile;K. Hadyńska-Klęk;M. Heine;Ł. Iskra;J. Jolie;V. Karayonchev;A. Kennington;P. Koseoglou;G. Lotay;G. Lorusso;M. Nakhostin;C. Nita;S. Oberstedt;L. Qi;J. Régis;V. Sánchez-Tembleque;R. Shearman;W. Witt;V. Vedia;K. Zell

Shape coexistence in 94 Zr studied via Coulomb excitation

通过库仑激发研究 94 Zr 的形状共存

• DOI: 10.1051/epjconf/201922301038
• 发表时间: 2019
• 期刊: EPJ Web of Conferences
• 作者: Marchini N

Half-life measurements in Dy 164 , 166 using ? - ? fast-timing spectroscopy with the ? -Ball spectrometer

Dy 164、166 的半衰期测量使用？

• DOI: 10.1103/physrevc.101.024313
• 发表时间: 2020
• 期刊: Physical Review C
• 影响因子: 3.1
• 作者: Canavan R