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Understanding the Dark Universe with 3D Weak Gravitational Lensing

Objective

"Understanding the twin cosmological puzzles of dark matter and dark energy remains the most fundamental challenge in modern cosmology. Almost the entire contents of the universe consist of dark matter or dark energy, but they are invisible and almost nothing is known about them. They are most effectively probed via the gravitational deflection of light from distant galaxies, a process known as ""gravitational lensing"". This is a purely geometrical effect, which is uniquely clean of astrophysical assumptions. Several dedicated gravitational lensing experiements have recently begun throughout Europe, to exploit rapid developments in telescope technology on the ground and in space. These include the VST/KIDS and Pan-Starrs surveys, as well as ESA's proposed DUNE satellite. However, measurements of gravitational lensing require the extraction of a very subtle signal, and the exploitation of such data has reached a systematic floor due to limitations in data analysis techniques. A great deal of preparation is urgently needed before the scientific potential of these funded surveys can be fully exploited. My recent work in America generated the largest ever survey from the Hubble Space Telescope. Through that experience, I have built a unique toolset that can help tap Europe's new data. I have also been deeply involved in the development of proposed American satellites SNAP and GRALE, which have very similar goals to DUNE. As a member of scientific teams on both sides of the Atlantic, I will be able to foster closer links between these complementary efforts, as well as helping to advance the project in Europe. I plan to be based at the university of Edinburgh, a centre of excellence for gravitational lensing observations, and the only institute that is a member of all three major projects. With this timely confluence of new data and analysis techniques, I would expect to make a major contribution to Europe's leadership in understanding the dark universe."

Field of science

  • /natural sciences/physical sciences/astronomy/observational astronomy
  • /natural sciences/physical sciences/astronomy/planetary science/satellites
  • /natural sciences/physical sciences/astronomy/observational astronomy/optical astronomy
  • /natural sciences/physical sciences/astronomy/physical cosmology
  • /natural sciences/computer and information sciences/data science/data analysis
  • /natural sciences/physical sciences/astronomy/astrophysics/dark matter

Call for proposal

FP7-PEOPLE-2007-4-3-IRG
See other projects for this call

Funding Scheme

MC-IRG - International Re-integration Grants (IRG)

Coordinator

UNIVERSITY OF DURHAM
Address
Stockton Road The Palatine Centre
DH1 3LE Durham
United Kingdom
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 37 500
Administrative Contact
Wendy Harle (Ms.)

Participants (1)

THE UNIVERSITY OF EDINBURGH

Participation ended

United Kingdom
EU contribution
€ 62 500
Address
Old College, South Bridge
EH8 9YL Edinburgh
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Angela Noble (Ms.)