Difference between revisions of "Hubble time dilation"
m |
DavidB4-bot (talk | contribs) (→top: Spelling, Grammar, and General Cleanup, typos fixed: propotional → proportional) |
||
| (11 intermediate revisions by one other user not shown) | |||
| Line 1: | Line 1: | ||
| − | The '''Hubble time dilation''' is | + | The '''Hubble time dilation''' is a hypothetical effect of accumulation of time dilation (in curved space) with distance from observer, so for small distances it looks roughly proportional to the distance. The exact effect is |
| − | The above equation implies that the '' | + | :<math>d\tau/dt=exp(-r/R_s)</math>, |
| + | |||
| + | where <math>\tau</math> is proper time at event in deep space (time of deep space), <math>t</math> is coordinate time of the event (time of observer), <math>r</math> is distance to the event in deep space from observer, and <math>R_s</math> is radius of curvature of space (about 13 billion light years, called by cosmologists ''[[Einstein's radius of universe]]'', or <math>R_E</math>). The above equation implies that the observed cosmological redshift is caused by the difference between <math>\tau</math> and <math>t</math> and the ''[[Hubble constant]]'' of our universe equals | ||
| + | |||
| + | :<math>H_o=c/R_s</math>, | ||
| + | |||
| + | where <math>c</math> is speed of light in vacuum and <math>R_s</math> is as before the radius of curvature of space. When this ''[[Hubble constant]]'', being in reality an exponential function | ||
| + | |||
| + | :<math>H(r)=Z/r=[exp(r/R_s)-1]/r</math>, | ||
| + | |||
| + | where Z is observed redshift of deep space galaxy, r is distance to this deep space galaxy, is split into Taylor series around <math>r=ct=0</math> it simmulates an accelerating expansion of space as observed in 1998 with accuracy to one standard deviation (maximum available accuracy of observation confirming an astronomical oservation as consistent with theory) as | ||
| + | |||
| + | :<math>dH/dt=-H_o^2/2</math>, | ||
| + | |||
| + | where <math>dH/dt</math> is change of [[Hubble constant]] with distance in time units <math>t</math>, and <math>H_o</math> is [[Hubble constant]] itself. | ||
| + | |||
| + | This result has been then taken for the action of ''"[[dark energy]]"'' since news about ''[[gravitation demystified]]'' were not published since February 1985 when the fact that our universe is stationary has been discovered through never done before, simple, Newtonian calculation of redshift in stationary universe of density approximately | ||
| + | |||
| + | :<math>6\times 10^{-27}kg/m^3</math> | ||
| + | |||
| + | as explained in [[gravitation demystified]] article. | ||
| + | |||
| + | [[Category:Astronomy]] | ||
| + | [[Category:Cosmology]] | ||
| + | [[Category:Physics]] | ||
Latest revision as of 17:53, July 11, 2016
The Hubble time dilation is a hypothetical effect of accumulation of time dilation (in curved space) with distance from observer, so for small distances it looks roughly proportional to the distance. The exact effect is
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle d\tau/dt=exp(-r/R_s)} ,
where Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \tau} is proper time at event in deep space (time of deep space), Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle t} is coordinate time of the event (time of observer), Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle r} is distance to the event in deep space from observer, and is radius of curvature of space (about 13 billion light years, called by cosmologists Einstein's radius of universe, or ). The above equation implies that the observed cosmological redshift is caused by the difference between Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \tau} and Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle t} and the Hubble constant of our universe equals
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle H_o=c/R_s} ,
where Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle c} is speed of light in vacuum and Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle R_s} is as before the radius of curvature of space. When this Hubble constant, being in reality an exponential function
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle H(r)=Z/r=[exp(r/R_s)-1]/r} ,
where Z is observed redshift of deep space galaxy, r is distance to this deep space galaxy, is split into Taylor series around Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle r=ct=0} it simmulates an accelerating expansion of space as observed in 1998 with accuracy to one standard deviation (maximum available accuracy of observation confirming an astronomical oservation as consistent with theory) as
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle dH/dt=-H_o^2/2} ,
where Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle dH/dt} is change of Hubble constant with distance in time units Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle t} , and Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle H_o} is Hubble constant itself.
This result has been then taken for the action of "dark energy" since news about gravitation demystified were not published since February 1985 when the fact that our universe is stationary has been discovered through never done before, simple, Newtonian calculation of redshift in stationary universe of density approximately
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 6\times 10^{-27}kg/m^3}
as explained in gravitation demystified article.