Dear All,
This week's London Relativity and Cosmology seminar at QMUL will be
given by Prof Peter Dunsby of the University of Cape Town who
completed his PhD here under the supervision of Malcolm MacCallum. In
his talk Prof Dunsby will be asking "How close can an Inhomogeneous
Universe mimic the Concordance Model?". The abstract for the talk is
provided below. The seminar will take place as usual at 4.30pm in Room
103 of the Maths Building on the Mile End Campus.
Prof Dunsby would like to go for lunch with the group as he is
travelling in the evening. Provisionally I recommend that anyone
wishing to go for lunch meets at 12.15pm in the Common Room (102). The
timing may be changed depending on Prof Dunsby's arrival time.
The discussion group meeting will take place as usual at 3.15pm in
Room 513 and all are welcome to attend. For details on the location of
the Maths Building and a list of upcoming seminars please see 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
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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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How close can an Inhomogeneous Universe mimic the Concordance Model?
Professor Peter KS Dunsby, of the Cosmology and Gravity Group in the
University of Cape Town
Abstract: Recently, spatially inhomogeneous cosmological models have
been proposed as an alternative to the LCDM model, with the aim of
reproducing the late time dynamics of the Universe without introducing
a cosmological constant or dark energy. This paper investigates the
possibility of distinguishing such models from the standard LCDM using
background or large scale structure data. It also illustrates and
emphasizes the necessity of testing the Copernican principle in order
to confront the tests of general relativity with the large scale
structure.
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