Timeline for Why is the solar spectrum at the surface of the Earth strongest in the visible light range? [duplicate]
Current License: CC BY-SA 4.0
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| May 31, 2023 at 14:21 | comment | added | Agnius Vasiliauskas | For $100nm$ part. Since it can't be the result of black body radiation of photosphere, I suspect it's mostly photons emitted from Solar transition region, where chromosphere transits to solar corona layer. $2000 km$ above sun atmosphere, there is some uniform of $2×10^4 K$ temperature zone which would have radiation peak at $145nm$. Not exactly a hard-UV $100nm$ peak given in black body discrepancy chart, but I think main reasons is that sun strictly speaking is not a black body. Black body just good approximates visible spectrum part. | |
| May 31, 2023 at 4:55 | comment | added | longtry | Thank you 3. According to ProfRob's link, the claim that "It actually takes the average gamma ray photon about 170,000 years to diffuse out of the radiative zone" in an answer in John's link is absolutely wrong, because any gamma ray will be 'absorbed' within nanoseconds. But then why is the ratio of solar flux to that of a black body so low between 120 & 300nm, and so high when <100nm? en.wikipedia.org/wiki/Sunlight#/media/… | |
| May 30, 2023 at 22:15 | comment | added | ProfRob | But IS a duplicate of physics.stackexchange.com/questions/103987/… | |
| May 30, 2023 at 12:54 | history | left closed in review |
naturallyInconsistent Michael Seifert Jon Custer |
Original close reason(s) were not resolved | |
| May 30, 2023 at 10:07 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
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| May 30, 2023 at 9:07 | comment | added | Agnius Vasiliauskas | IMHO, it's not a duplicate because OP wants to know why the peak of radiation which we receive is in the visible EM spectrum part (and not in other, shorter or longer wavelengths). | |
| May 30, 2023 at 9:04 | review | Reopen votes | |||
| May 30, 2023 at 12:54 | |||||
| S May 30, 2023 at 9:03 | history | closed | John Rennie visible-light Users with the visible-light badge or a synonym can single-handedly close visible-light questions as duplicates and reopen them as needed. | Duplicate of How is Earth protected from the gamma rays generated by the Sun? | |
| S May 30, 2023 at 9:03 | comment | added | John Rennie | Does this answer your question? How is Earth protected from the gamma rays generated by the Sun? | |
| May 30, 2023 at 8:36 | history | asked | longtry | CC BY-SA 4.0 |
