Sunday, March 23, 2014

Are Artifacts of CMB Right Next to Me?

 Looking back seems strange to me and that if one is to take such a position then evidence must exist in this very moment?

Models of Earlier Events

This may seem like a stupid question to some, but for me it is really about looking at where I exist in the universe and what exists right next to us in the same space. I am not sure if that makes any sense but hopefully somebody out there can help me focus better.

ESA and the Planck Collaboration
The mission's main goal is to study the cosmic microwave background – the relic radiation left over from the Big Bang – across the whole sky at greater sensitivity and resolution than ever before.
The cosmic microwave background (CMB) is the furthest back in time we can explore using light.
The cosmic microwave background (CMB) is detected in all directions of the sky and appears to microwave telescopes as an almost uniform background. Planck’s predecessors (NASA's COBE and WMAP missions) measured the temperature of the CMB to be 2.726 Kelvin (approximately -270 degrees Celsius) almost everywhere on the sky. 
So with parsing some of these points from the link associated above with picture, I am not sure if my question has been properly asked.

 A discussion about the definition of nothing.

For me then too, I would always wonder about "what nothing is" as that to relates to the question about what can exist right next to me. It was meant to be logical and not metaphysical question, so as to be reduced to those first moments.

***

If BICEP2′s recent result is correct:

” -as big as a large fraction of a percent of the Planck temperature (where the universe would have been hot enough to make black holes just from its own heat) or

– as small as the temperature corresponding to about the energy of the Large Hadron Collider (where it would barely have been hot enough to make Higgs particles)”


History of the Universe
“not of the whole universe but rather just the part of the universe (called, on this website, “the observable patch of the universe“) that we can observe today,”

Why is this “observable patch” important and where in the CMB map is this located? As strange a question as this might be, can this “observable patch” be right next to us?

So I am constructing a method here to help us see the universe as if I am on a location within this CMB map.

"The cosmic microwave background (CMB) is detected in all directions of the sky and appears to microwave telescopes as an almost uniform background. " -See: ESA and Planck Collaboration

So of course you look at the map,  and for me,  I wonder where we are located on that map. So with regard to that particular patch what does the background look like?-




"The contents point to a Euclidean flat geometry, with curvature (\Omega_{k}) of −0.0027+0.0039 −0.0038. The WMAP measurements also support the cosmic inflation paradigm in several ways, including the flatness measurement."- WMAP

So such a illustration and my question about our location and where we are in that "all sky map(CoBE, WMAP, and PLanck)" tells us something about the region we are in? Right next to us,  in this map while seeking our placement, I am curious as to what this region looks like in relation to say another point on that map.


Cosmological parameters from 2013 Planck results[23][24][25]
Parameter Age of the universe (Gy) Hubble's constant
( kmMpc·s )
Physical baryon density Physical cold dark matter density Dark energy density Density fluctuations at 8h−1 Mpc Scalar spectral index Reionization optical depth
Symbol t_0 H_0 \Omega_b h^2 \Omega_c h^2 \Omega_\Lambda \sigma_8 n_s \tau
Planck
Best fit
13.819 67.11 0.022068 0.12029 0.6825 0.8344 0.9624 0.0925
Planck
68% limits
13.813±0.058 67.4±1.4 0.02207±0.00033 0.1196±0.0031 0.686±0.020 0.834±0.027 0.9616±0.0094 0.097±0.038
Planck+lensing
Best fit
13.784 68.14 0.022242 0.11805 0.6964 0.8285 0.9675 0.0949
Planck+lensing
68% limits
13.796±0.058 67.9±1.5 0.02217±0.00033 0.1186±0.0031 0.693±0.019 0.823±0.018 0.9635±0.0094 0.089±0.032
Planck+WP
Best fit
13.8242 67.04 0.022032 0.12038 0.6817 0.8347 0.9619 0.0925
Planck+WP
68% limits
13.817±0.048 67.3±1.2 0.02205±0.00028 0.1199±0.0027 0.685+0.018
−0.016
0.829±0.012 0.9603±0.0073 0.089+0.012
−0.014
Planck+WP
+HighL
Best fit
13.8170 67.15 0.022069 0.12025 0.6830 0.8322 0.9582 0.0927
Planck+WP
+HighL
68% limits
13.813±0.047 67.3±1.2 0.02207±0.00027 0.1198±0.0026 0.685+0.017
−0.016
0.828±0.012 0.9585±0.0070 0.091+0.013
−0.014
Planck+lensing
+WP+highL
Best fit
13.7914 67.94 0.022199 0.11847 0.6939 0.8271 0.9624 0.0943
Planck+lensing
+WP+highL
68% limits
13.794±0.044 67.9±1.0 0.02218±0.00026 0.1186±0.0022 0.693±0.013 0.8233±0.0097 0.9614±0.0063 0.090+0.013
−0.014
Planck+WP
+highL+BAO
Best fit
13.7965 67.77 0.022161 0.11889 0.6914 0.8288 0.9611 0.0952
Planck+WP
+highL+BAO
68% limits
13.798±0.037 67.80±0.77 0.02214±0.00024 0.1187±0.0017 0.692±0.010 0.826±0.012 0.9608±0.0054 0.092±0.013


So as we look at this map much is told to us about the Cosmological Parameters and what can be defined in this location we occupy.



Parameter Value Description
Ωtot 1.0023^{+0.0056}_{-0.0054} Total density
w -0.980\pm0.053 Equation of state of dark energy
r <0.24, k0 = 0.002Mpc−1 (2σ) Tensor-to-scalar ratio
d ns / d ln k -0.022\pm0.020, k0 = 0.002Mpc−1 Running of the spectral index
Ωvh2 < 0.0062 Physical neutrino density
Σmν <0.58 eV (2σ) Sum of three neutrino masses


See:
***

See Also:

No comments:

Post a Comment