A star that shows an excess of ultraviolet radiation compared to normal stars. An ultraviolet excess can be used to identify hot O and B stars, white dwarfs, and objects surrounded by an accretion disk, such as neutron stars and black holes.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。