Question about gravitational waves, E modes

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SUMMARY

The discussion clarifies the distinction between E modes in the cosmic microwave background (CMB) and gravitational waves. E modes are not gravitational waves; they are polarization patterns in the CMB that originated during the recombination era, not during inflation. The confusion arises from the timing of their production, as E modes are detectable from the recombination period, which follows the Big Bang.

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  • Concept of inflation in cosmology
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  • Study the process of recombination in the early universe
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Frank Einstein
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Hi everybody, I have been reading about gravitational waves, but I don't get how the E modes work; in one place I read that they were created during the inflation time, but in other I read that they come from the recombination.
Does it mean that they were produced almost when the Big Bang happened but I cam only see the ones from the recombination era?

Thanks for reading.
 
Astronomy news on Phys.org
Do you mean E modes in the cosmic microwave background? Those are not gravitational waves.
 

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