Download Slides

Survey

Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Astronomical spectroscopy wikipedia , lookup

Weak gravitational lensing wikipedia , lookup

First observation of gravitational waves wikipedia , lookup

Redshift wikipedia , lookup

Shape of the universe wikipedia , lookup

Expansion of the universe wikipedia , lookup

Dark matter wikipedia , lookup

Weakly-interacting massive particles wikipedia , lookup

Chronology of the universe wikipedia , lookup

Big Bang wikipedia , lookup

Cosmic microwave background wikipedia , lookup

Transcript

How good will it get?
For the favoured cosmological constant the best
signal to noise one can expect is about 7-10.
This requires significant sky
coverage, surveys with large
numbers of galaxies and some
understanding of the bias.
The contribution to (S/N)2 as a
function of multipole moment.
This is proportional to the number
of modes, or the fraction of sky
covered, though this does depend
on the geometry somewhat.
Of course, this assumes we have
the right model-- It might be more!
RC, N. Turok 96
Afshordi 2004

Related documents