• Corpus ID: 15138926

Comparison of Spectral Index Determinations

@article{Wright1994ComparisonOS,
  title={Comparison of Spectral Index Determinations},
  author={Edward L. Wright},
  journal={arXiv: Astrophysics},
  year={1994}
}
  • E. Wright
  • Published 1 August 1994
  • Physics
  • arXiv: Astrophysics
The index $n$ of a power law power spectrum of primordial density fluctuations, $P(k) \propto k^n$, has been estimated using many different techniques. The most precise compare the COBE DMR large angular scale $\Delta T$ to the amplitude of the large scale structure, but these are also the most model-dependent. The COBE DMR $\Delta T$ has also been compared to the degree-scale $\Delta T$ from several experiments. And finally, a relatively model-independent value of $n$ can derived from the COBE… 
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References

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submitted to the ApJL
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An extended version of Figure 6 from Peacock & Dodds, showing n = 0.5, 1 and 1.5 extrapolations through the COBE point
  • An extended version of Figure 6 from Peacock & Dodds, showing n = 0.5, 1 and 1.5 extrapolations through the COBE point