Objective
If galaxy clusters, containing 80% dark matter, formed hierarchically under the influence of gravity alone, we would expect their intrinsic properties to follow self-similar scaling derived, assuming hydrostatic equilibrium, from basic viral relations. Such similarity applies equally to the hot X-ray emitting intra-cluster medium and thedark matter components. For instance, the total mass would be proportional to the X-ray temperature (M µ T³/²) and the X-ray luminosity would be proportional to the square of the X-ray temperature (Lx µ T²). While observations of the ICM have shown that there is an obvious similarity in the form of the gas temperature and density profiles, the scaling relations break down in the low mass limit. That real clusters do not follow the expected scaling laws points to the influence of non-gravitational processes during their formation. That the similarity breaking occurs in the low mass limit implies that here, the non-gravitational processes affect the properties of the ICM in direct competition with gravity. I propose to use high-quality XMM-Newton and Chancre data to attack the question of why galaxy clusters donor follow the expected scaling relations. Radial temperature, density, chemical abundance, mass and entropy profiles will be obtained for a large sample of clusters across a wide mass/temperature range. Such a sample will allow a global and integrated approach to testing the current theories of non-gravitational input presumed responsible for modifying the observed scaling properties. In particular, I will be able to test whether the dark matter component is collision or non-collision, and investigate he non-gravitational energy input through examination of the entropy and chemical abundance profiles. The project will make extensive use of the European Space Agency's XMM-Newton satellite, and will entail collaboration with a number of other European institutes.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology mechanical engineering vehicle engineering aerospace engineering satellite technology
- natural sciences physical sciences astronomy astrophysics dark matter
- social sciences law
You need to log in or register to use this function
Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2002-MOBILITY-5
See other projects for this call
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
MUENCHEN
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.