报告题目:Thermonuclear X-ray bursts on the surface of neutron stars
报告人: 张国宝 研究员
报告时间:2019年4月18号(星期四)早上9:30-11:30
报告地点:行健楼437
报告摘要
Type-I X-ray bursts are thermonuclear explosions occurring on the surface of accreting neutron stars. These events are powerful probes of the extreme environment in which they are produced. In this talk I will show the evolution of the pre-burst emission, mHz quasi-periodic oscillations (QPOs) , the shape of the rising and decaying phases of the burst light curve and the spectral and timing properties during the burst in several systems. Our results indicate that all the above properties are related to the burst ignition site on the neutron-star surface. I will further discuss the effect of this finding on measurements of the neutron-star radius through X-ray bursts.
报告人简介:
教育
2008–2012:荷兰格罗宁根大学,天体物理专业,博士。
2004–2007:河北师范大学,理论物理,硕士。
2000–2004:河北师范大学,物理学,学士。
工作
2017.11–至今:中国科欧洲杯直播
云南天文台,高能天体物理研究组,研究员。
2013.10-2017.10:纽约大学阿布扎比分校,博士后
2012.9-2013.9:荷兰格罗宁根大学,博士后
研究方向: 高能天体物理(X射线双星,恒星级黑洞,中子星,白矮星,I型X射线暴)