This page describes an image 一顆 M 型恒星的光譜
Download File ( image 90.92 kB)
Download PDF File (PDF file 88.01 kB)
Diagram caption:
M 型恒星 2MASS J15581272+8457104 的光譜。波長在 400 納米到 700 納米之間的光譜綫的顔色大緻與人眼看到的該波長光綫的顔色一緻。波長低於 400 納米和高於 700 納米時，人眼幾乎看不到光，這兩條綫分彆被染成藍色和紅色。
黑綫顯示的是恒星大氣中不同元素的原子、離子和分子造成的光譜吸收綫。這些原子、離子和分子會吸收特定波長的光綫，從而在光譜中形成尖銳的暗綫。這些綫條的強度取決於恒星大氣層的溫度。如果兩顆恒星的大氣層溫度不同，那麼由相同元素混閤而成的兩顆恒星的光譜中可能會齣現截然不同的光譜綫。M 型恒星的大氣層足夠冷，可以形成一些化閤物。這些化閤物通常在天文學中被稱為分子，盡管它們在化學中並不是嚴格意義上的分子。這些分子會在 M 型恒星的光譜中産生如此之多的譜綫，以至於這些譜綫看起來會閤並成巨大的條帶，從而從光譜中去除一大塊。在 M 型恒星中，氧化鈦在可見光中有大量這樣的波段，占據瞭光譜的大部分區域。
Diagram credit: IAU OAE/SDSS/Niall Deacon.
Diagram translation status: Not yet approved by a reviewer
Diagram translators: An automated transliteration from the simplified Chinese translation by - Lin Shijie
Diagram license: Creative Commons 姓名標示 4.0 國際 (CC BY 4.0) Creative Commons 姓名標示 4.0 國際 (CC BY 4.0) icons
Related glossary terms:
M 型星
, 光譜
, 波長
Categories:
Stars
Want to make your own version of this diagram? Then have a look at the code that
produced this diagram on Github
You can also make your own version or translation of this diagram by adding adding text to a version of
this diagram with no text. Just download one of the following files:
Download Text-Free File ( image 70.79 kB)
Download Text-Free PDF File (PDF file 64.77 kB)
Linked Diagrams
一顆 O 型恒星的光譜一顆 B 型恒星的光譜
A 型恒星的光譜
一顆 F 型恒星的光譜
一顆 G 型恒星的光譜
一顆 K 型恒星的光譜
恒星光譜類型
恒星光譜類型 - 波段
In Other Languages
英語: Spectrum of an M-type star義大利語: Spettro di una stella di tipo M
法語: Spectre d'une étoile de type M
西班牙語: Espectro de una estrella tipo M
阿拉伯語: طيف نجم من النوع M
簡體中文: 一颗 M 型恒星的光谱
The diagram captions presented on the OAE website were written, translated and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits for our translation project here. All media file captions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE". The media files themselves may have different licenses (see above) and should be credited as listed above under "credit".
If you notice a error in this diagram or its caption then please get in touch.
