I How do Limb-Darkening curves differ at two different wavelengths?

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Limb-darkening curves exhibit different behaviors at varying wavelengths, with shorter wavelengths (around 4000 Angstroms) typically showing a steeper fall-off compared to longer wavelengths (around 7000 Angstroms). This difference is attributed to the varying opacity and temperature gradients in stellar atmospheres. Research indicates that the effects of limb darkening are more pronounced in the ultraviolet and blue regions of the spectrum. Observational data and theoretical models support these findings, highlighting the importance of wavelength in understanding stellar characteristics. Understanding these differences is crucial for accurate modeling in astrophysics.
AlphaCrucis
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Wavelengths of lets say 4000 Angstroms and 7000 angstroms.
Does the limb-darkening curve fall off faster at shorter wavelengths or at longer wavelengths?
 
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AlphaCrucis said:
Summary:: Wavelengths of let's say 4000 Angstroms and 7000 angstroms.

Does the limb-darkening curve fall off faster at shorter wavelengths or at longer wavelengths?
What research have you done on this? What have you found out?
 

Thread 'Population 3 star (Pop III) candidate LAP1'

"Pop III stars are thought to be composed entirely of helium and hydrogen with trace amounts of lithium, the ingredients left over after the Big Bang. They formed early on, around 200 million years after the universe began. These stars are extremely rare because they died out long ago, although scientists have hoped that the faint light from these distant, ancient objects would be detectable. Previous Population III candidates have been ruled out because they didn't meet the three main...
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