网站首页  情感咨询  情感美文  情感百科  情感生活  学习充电  旧版美文

请输入您要查询的词汇:

 

词汇 Markarian galaxies
分类 英语词汇 英语翻译词典
释义

Markarian galaxies

中文百科

马克仁星系

天球图上的点代表马卡良星系位置。白色区域是受到银河系遮挡因素。

马克仁星系Markarian galaxies)是一种和其他星系相比,其星系核紫外线辐射超量的一种星系。苏联籍亚美尼亚天文学家班杰明·马克仁于1963年首次注意到这种星系。这种星系的核心颜色偏蓝,相当于A至F型光谱恒星。而它们的偏蓝核心在其他星系中并不会出现,而且其光谱是连续谱,代表这是非热辐射。大多数的马克仁星系光谱都有发射线,而且因为代表它们相当活跃而引人注意 。

英语百科

Markarian galaxies 马克仁星系

Sky plot showing locations of Markarian galaxies.  White band is due to the Milky Way.

The Markarian galaxies are a class of galaxies that have nuclei with excessive amounts of ultraviolet emissions compared with other galaxies. Benjamin Markarian drew attention to these types of galaxies starting in 1963. The nuclei of the galaxies had a blue colour that in a star would be classed from A to F. This blue core did not match the rest of the galaxy. The spectrum in detail tends to show a continuum that Markarian concluded was produced non-thermally. Most of these have emission lines and are interesting because of their energetic activity. Markarian Catalogue entries are of the form "Markarian ####", and can frequently use the abbreviations Mrk, Mkr, Mkn; and rarely Ma, Mk, Mark.

随便看

 

依恋情感网英汉例句词典收录3870147条英语例句词条,基本涵盖了全部常用英语单词的释义及例句,是英语学习的有利工具。

 

Copyright © 2004-2024 Yiyi18.com All Rights Reserved
京ICP备2021023879号 更新时间:2025/10/9 12:07:37