How is our speed (~605km/s) derived from the CMB dipole anisotropy?

[lenfromkits]

Hi. How does the number 605km/s come from the observed CMB wavelength of 1.9mm?
(http://en.wikipedia.org/wiki/Cosmic_microwave_background_radiation)

Please only reply in 'English' and not a bunch of calculations because Google already provides lots of calculations. I am trying to get a general understanding in English.

Most importantly, I am trying to understand if any relativistic math is used to get the speed. Is the Lorentz factor (sqrt(1-v^2/c^2) used in there anywhere? I have applied this formula to the speed of 605 in a project and arrived at a notable result but need to know if I have simply reversed a calc that was done by someone to arrive at the 605.

Thanks.

 

[Chronos]

It is derived from the CMB redshift taken in multiple direction. Subtracting the highest from lowest redshift gives a differential of about 600 kms.

 

[lenfromkits]

It is derived from the CMB redshift taken in multiple direction. Subtracting the highest from lowest redshift gives a differential of about 600 kms.

Thanks. How then is velocity derived from Red Shift exactly? Are certain speed associated with certain changes in frequency? Is it linear or does it follow the lorentz factor curve?

 

[Ich]

           E     h
            n   s
             g i
              l

Redshift = English 

             nE
            g
            l    
            i
             sh

I don't understand how the restriciton to English is supposed to make communication easier. However, the relationship is linear for low verlocities.

 

[pmacias]

The speed of 605km/s is derived from the observed dipole anisotropy in the cosmic microwave background (CMB) radiation. This anisotropy is a result of the relative motion between the Earth and the rest frame of the CMB, which is the frame in which the CMB appears isotropic.

The observed wavelength of the CMB radiation (1.9mm) is used to calculate the speed by applying the Doppler effect formula, which relates the observed wavelength to the speed of the source relative to the observer. This formula does not involve any relativistic math or the Lorentz factor.

It is important to note that the speed of 605km/s is not the actual speed of the Earth, but rather the speed of the Earth relative to the rest frame of the CMB. This means that the observed anisotropy is a result of the Earth's motion through the universe, rather than its rotation or orbit around the sun.

In conclusion, the speed of 605km/s is derived from the observed dipole anisotropy in the CMB radiation using the Doppler effect formula, which does not involve any relativistic math.