天体物理中的星等概念比较  

Discussions on the conception of magnitude in Astrophysic

作　　者：刘伟民[1] 

机构地区：[1]商丘师范学院物理与信息工程系,河南商丘476000

出　　处：《商丘师范学院学报》2011年第9期34-36,共3页Journal of Shangqiu Normal University

基　　金：国家自然科学基金资助项目(10873011)

摘　　要：通过讨论天体物理中光度,亮度和照度之间的差别,引入星等概念.对包含视星等和绝对星等的关系式进行细化推论,明确了视星等和绝对星等之间的差异以及在天体物理中的重要联系,随后举例介绍了天体物理中的超新星爆发现象.最后归纳出几条重要结论.The conception of magnitude is introduced by discussing the difference among the luminosity,the light,and the illumination in astrophysics.Detailed deduction on the relationship between apparent magnitude and absolute magnitude is carried out.Then,the difference and the connexion between the two kinds of magnitudes is described clearly and the supernovae burst is introduced as an application example.Finally,some key conclusions are listed.

关 键 词：星等 视星等 绝对星等 光度 亮度 

分 类 号：P144.6[天文地球—天体物理]