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Cosmic Mnemonics
Cosmology and Nongalactic Astrophysics · Submitted 10 Sep 2013
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Using constraints from the Planck satellite, in combination with other data sets, we explore several such quantities, highlighting some specific examples.
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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
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The abstract, sentence by sentence
Our current description of the large-scale Universe is now known with a precision undreamt of a generation ago. Within the simple standard cosmological model only six basic parameters are required. The usual parameter set includes quantities most directly probed by the cosmic microwave background, but the nature of these quantities is somewhat esoteric. However, many more numbers can be derived that quantify various aspects of our Universe. Using constraints from the Planck satellite, in combination with other data sets, we explore several such quantities, highlighting some specific examples.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Our current description of the large-scale Universe is now known with a precision undreamt of a generation ago. | background 1.00 | 0.07 | 0.06 | asserted 1.00 |
| s1 | Within the simple standard cosmological model only six basic parameters are required. | background 1.00 | 0.06 | 0.05 | asserted 1.00 |
| s2 | The usual parameter set includes quantities most directly probed by the cosmic microwave background, but the nature of these quantities is somewhat esoteric. | background 0.88 | 0.06 | 0.04 | asserted 0.98 |
| s3 | However, many more numbers can be derived that quantify various aspects of our Universe. | background 0.86 | 0.12 | 0.08 | asserted 0.99 |
| s4 | Using constraints from the Planck satellite, in combination with other data sets, we explore several such quantities, highlighting some specific examples. | contribution 0.84 | 0.94 | 0.16 | asserted 0.97 |
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The paper
Original abstract
Our current description of the large-scale Universe is now known with a precision undreamt of a generation ago. Within the simple standard cosmological model only six basic parameters are required. The usual parameter set includes quantities most directly probed by the cosmic microwave background, but the nature of these quantities is somewhat esoteric. However, many more numbers can be derived that quantify various aspects of our Universe. Using constraints from the Planck satellite, in combination with other data sets, we explore several such quantities, highlighting some specific examples.
Human review
How the literature uses it
8 arXiv papers cite this in 11 sentences
Papers citing it · 7 sentences without a confident label
Uses its data or values 2 papers
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(The total mass density of the present universe is about 13/9 times this, or about 5.2 protons per cubic meter [ref] .)
Anthropic Estimates for Many Parameters of Physics and Astronomy · Approximate Anthropic Estimates for Other Physical and Astronomical Parameters · 0.90
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(Incidentally, the Planck+highL+WMAP+BAO satellite and other data [ref] give the mean observed value of the asymptotic de Sitter entropy of our universe, $S_dS = A/4 = 3π/Λ$, as being within 0.32%, or within $1/11$ of a standard deviation of about 3.7%, of $5^3 2^400$, which is a useful mnemonic, along with the fact that the present age of the universe is, within about $1/50$ of a standard deviation of about 2.7%, $1.6 π 2^200$ in Planck units, the fact that within $1/70$ of a standard deviation the cosmological constant $Λ$ is $1/(10 Gyr)^2 = 10^-20$yr$^-2$, the fact that within $1/8$ of a standard deviation the cosmological constant is also ten square attohertz or $10 aHz^2 = 10^-35$s$^-2$, the fact that the present cosmic microwave background radiation (CMB) temperature is, within a bit less than one standard deviation of about 0.02%, $2^-100/41$ in units of the Planck temperature $T_
Excluding Black Hole Firewalls with Extreme Cosmic Censorship · Introduction · 0.98
Cites it as background 2 papers
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The standard cosmological model successfully describes a wide range of observational phenomena using just six parameters in the context of a framework that requires only a handful of basic assumptions [ref] .
Pi in the sky · Introduction · 0.96
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In addition to the usual six parameters, it is also possible to calculate the constraints on any combination of those parameters, or indeed any function of them (see e.g. Ref. [ref] for more examples).
Some Times in Standard Cosmology · Introduction · 0.83
What it cites · 8 sentences without a confident label
Uses the method or tool of 1 paper
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Reference [ref] describes how a Monte Carlo Markov chain approach is used to fit cosmological models to the data, and hence to extract parameter values and uncertainties.
Planck 2013 results. XVI. Cosmological parameters · Cosmological data · 0.91
Uses data or values from 5 papers
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We use data constraints provided by the Planck satellite [ref] , which maps the pattern of temperature variations on the microwave sky.
Planck 2013 results. I. Overview of products and scientific results · Cosmological data · 0.98
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Following the Planck Collaboration we elect to use the constraints coming from the Planck data combined with: large-angle polarisation measurements from WMAP [ref] ; small scale (i.e. high multipole $ℓ$) CMB data from the ACT [ref] and SPT [ref] experiments; and a set of estimates of the so-called `baryon acoustic oscillations' [ref] in the relatively nearby Universe.
Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results · Cosmological data · 1.00
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Following the Planck Collaboration we elect to use the constraints coming from the Planck data combined with: large-angle polarisation measurements from WMAP [ref] ; small scale (i.e. high multipole $ℓ$) CMB data from the ACT [ref] and SPT [ref] experiments; and a set of estimates of the so-called `baryon acoustic oscillations' [ref] in the relatively nearby Universe.
The Atacama Cosmology Telescope: Temperature and Gravitational Lensing Power Spectrum Measurements from Three Seasons of Data · Cosmological data · 1.00
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