Dear All,

Elise Jennings - Wednesday 1/12/10 4.30pm - Maths 103 QMUL

This week in our Wednesday seminar series, Elise Jennings from the
Durham University will be speaking about "Predictions for large-scale
structure in future galaxy redshift surveys". The abstract is below.
The seminar will start at 4.30pm in Room 103 of the Maths Building on
the Mile End Campus. The discussion group meeting will be held as
usual at 3.15pm in Room 513. As the speaker has to catch a train we
are going to bring her out for lunch, and we will meet at 12.15pm in
the Maths Common Room.

As always, for directions to the building and a list of upcoming
seminars please go to our wiki site at http://cosrel.maths.qmul.ac.uk
.

The School of Mathematical Sciences is undertaking a major
refurbishment programme that will radically change the design to our
building both externally and internally. During the reconstruction, we
regret that access to the building will be limited. If this could
impact upon your intention to attend a seminar, please contact Bill
White on 0207 882 5514 or email to [log in to unmask] to discuss your
particular requirements.

Best wishes,

Ian

---------------------------------------------
Dr Ian Huston

Postdoctoral Researcher
Cosmology and Relativity Group
Astronomy Unit, School of Mathematical Sciences
Queen Mary, University of London

[log in to unmask]
http://www.maths.qmul.ac.uk/~ith
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Predictions for large-scale structure in future galaxy redshift surveys
Elise Jennings - Durham University


Forthcoming galaxy redshift surveys will make high precision
measurements of the clustering of galaxies on scales in excess of
100/h Mpc. In particular, the quantification of the distortion of
clustering due to the peculiar motions of galaxies and the scale of
characteristic features in the galaxy distribution have been proposed
as tests of the cosmic acceleration. To obtain robust constraints on
dark energy, we need to understand any systematic effects which cause
deviations from linear perturbation theory which is commonly applied
on these scales. I will present the predictions for BAO and redshift
space distortions using large volume N-body simulations which
demonstrate that linear theory is not sufficient to model future
surveys. These calculations include the first consistent simulations
of quintessence dark energy models. Some of these models cannot be
distinguished from LCDM using BAO alone. I will also describe a
procedure for analysing redshift-space distortions in a range of
cosmologies which is a major improvement over linear theory.