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Contains:  Other
Amateur Radio Astronomy :  1.42 GHz H line Milky Way arms Doppler shift , 





    
        

            Wanni

Amateur Radio Astronomy : 1.42 GHz H line Milky Way arms Doppler shift

Description

These are two of my measurements of the milky way spiral arms seen in the frequency domain
as doppler -shift of the H - line rest frequency 1.4204 GHz

A description of my Radio Telescope is here :
"http://www.astrobin.com/297645/D"
P.S.
A photon is emitted at exact 1.4204 GHz or 21.1 cm wavelength if a Hydrogen proton and the surrounding electron flip from parallel to anti - parallel spin.
The transition propability is only 1 in 10 million, however the interstellar medium is full of hydrogen
especially within the spiral arms of galaxies.
Systematic measurements of the milky way spiral arms started after WW2 in the Netherlands
(1955, van de Hulst, J.H. Oort)

Milky way chart source: https://www.nasa.gov/jpl/charting-the-milky-way-from-the-inside-out

Comments

Author

wanni60
Wanni
License: None (All rights reserved)
2303
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Revisions

  • Amateur Radio Astronomy :  1.42 GHz H line Milky Way arms Doppler shift , 





    
        

            Wanni
    Original
  • Final
    Amateur Radio Astronomy :  1.42 GHz H line Milky Way arms Doppler shift , 





    
        

            Wanni
    B

B

Milky way arms spread over frequ.

Histogram

Amateur Radio Astronomy :  1.42 GHz H line Milky Way arms Doppler shift , 





    
        

            Wanni