Viewing a response to: @rifkan/introduction-to-stellar-atmosphere-formation-of-spectra-and-modeling-the-stellar-atmosphere
Hi Rifkan, this is a nice article and the fun thing is you can go outside at night and observe the absorption spectra of stellar atmospheres with an inexpensive diffraction grating and an ordinary telescope. I am a bit rusty on the theory side (I had to go and look up Plank Distribution for example! ) Just a question, do you have any thoughts on what the atmospheres and photospheres of red supergiants would look like?
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| author | terrylovejoy |
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Thank you so much. I am fan ou your works firstly. In the case of red supergiants, the atmosphere should be so much large, it can be few hundred times solar radii. It happens during the last period of low mass stars (around 10 solar mass) which cannot go all the way to iron core through fusion. As the atmosphere is large it should be cold, so it should look more reddish or a part of it can be in infrared part.
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Thank you @rifkan I am glad you like my blog posts here! Some of these stars are so large they may not have a distinct photosphere, judging by direct imaging of Betelguese.
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| author | terrylovejoy |
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Yeah cause for other stars photosphere is so thin as gravity hold it. But for this kind ots not as the pressure pushing outward dominates so there is no distinct photosphere can be found :)
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| author | rifkan |
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