赫罗图的建立

ON THE ESTABLISHMENT OF THE HR DIAGRAM

本文着重讨论赫罗图的建立及其在天文学史上的意义。在天体测量学和天体物理学发展的基础上,赫茨普龙研究恒星光谱型与光度的关系,首先发现了巨星序和矮星序,并发表了第一幅星团的颜色-星等图。罗素发现巨星序和矮星序较赫氏略迟,但他发表了第一幅场星的光谱-光度图,并首先将赫罗图用来讨论恒星演化问题。因此赫、罗二氏是赫罗图的创始人,他们在创建中具有同等的功绩。蒙克虽然最早讨论恒星光谱型与光度的关系,但由于研究方法上的缺陷,他最终未能获得正确的结果。

This thesis mainly deals with the establishment of the HR diagram and its significance in the history of astronomy. Based on the advance in astrometry and astrophysics, E. Hertzsprung studied the relation between the spectral types and luminosity of stars. He was the first to discover the giant star sequence and the dwarf star sequence, and published the first cluster colour-magnitude diagram. H. N. Russell's discovery of the giant star sequence was slightly later than that of Hertzsprung, but he published the first spectral types-luminosity diagram for field stars, and first used the HR diagram for discussing stellar evolution. So Hertzsprung and Russell were the originators of the HR diagram and made equivalent contributions to this achievement. Although W. H. S. Monck first discussed the relation between the spectral types and luminosity of stars, he couldn't eventually obtain the correct result because of the defects in hisresearch method.