CAJ | 학술논문

当具有各向同性速度分布的相对论电子穿过稠密气体区,或者轰击稠密气体区的表面时,切仑科夫效应将会产生1种特殊的原子或离子发射线,称做切仑科夫线状发射.这一预言在光学波段已由实验室的实验所证实.研究指出了切仑科夫线状辐射在类星体和赛弗特1星系的宽发射线研究中的重要性,利用此新机制有可能解决类星体研究中的一些重大且长期没有解决的疑惑.例如宽氢线之间存在的反常强度比,特别是反常Lyα/Lyβ强度比的问题.并且进一步估计了相对论电子穿过宇宙气体时所产生的各种效应的能耗的数量级,并对各种能耗进行比较,证实了切仑科夫线状发射机制在类星体和塞弗特1型星系中的有效性.
당구유각향동성속도분포적상대론전자천과주밀기체구,혹자굉격주밀기체구적표면시,절륜과부효응장회산생1충특수적원자혹리자발사선,칭주절륜과부선상발사.저일예언재광학파단이유실험실적실험소증실.연구지출료절륜과부선상복사재류성체화새불특1성계적관발사선연구중적중요성,이용차신궤제유가능해결류성체연구중적일사중대차장기몰유해결적의혹.례여관경선지간존재적반상강도비,특별시반상Lyα/Lyβ강도비적문제.병차진일보고계료상대론전자천과우주기체시소산생적각충효응적능모적수량급,병대각충능모진행비교,증실료절륜과부선상발사궤제재류성체화새불특1형성계중적유효성.
When the thermal relativistic electrons with isotropic distribution of velocities move through a dense gas region, or impinge upon the surface of a dense cloud of gas, the Cerenkov effect will produce peculiar atomic or ionic emission lines, which is called as the "Cerenkov line-like radiation". This prediction has been verified by the laboratory experiments in the optical waveband. In this paper, the importance of the Cerenkov line-like radiation in the research on broad emission lines in quasars and Seyfert 1 galaxies is pointed out. By using this mechanism, some long standing and significant puzzles in study of quasars can be solved. Furthermore, the magnitude orders of energy losses due to various effects when a relativistic electron moving through the cosmic gas are estimated and compared with each other to prove the effectiveness of the new mechanism in quasars.