4 ms·
The colour computed in the article is anything but infrared, it is at the other end of the planckian locus.
by kelsolaar 5y ago
The colour computed in the article is anything but infrared, it is at the other end of the planckian locus.
- c1ccccc1 5y agoWhen physicists say something is true in the infrared limit, they mean that it is true for low enough wavelengths. In this case the exact definition of "low enough" depends on the temperature. If the temperature is high enough, then that set of "low enough" wavelengths will include the entire visible part of the spectrum. So as T goes to infinity, the light that we can actually see will get brighter and brighter, but the relative power emitted at different wavelengths will stay the same, so the colour will stay the same. But that's just in the visible region. There will be higher and higher frequency x rays and gamma rays emitted, eventually to the point of being lethal to a human observer.
- Dylan16807 5y agoThat's why they said infrared or high-temperature. Combined it's: Anywhere the temperature is high relative to the frequencies being analyzed.