| PROPOSAL OVERVIEW | |
| Proposal Title | Galaxy groups as the ultimate probe of AGN feedback |
| Proposal Category | Galaxies, Groups of Galaxies, Clusters of Galaxies and Superclusters |
| Proposal Type | LARGE PROGRAM |
| Proposal Id | 090389 |
| Number of Observations | 36 |
| Total exposure time (ks) | 859 |
| PI DETAILS | |
| PI | Dr. Dominique Eckert |
| Institute | Universite de Geneve |
| Country | SWITZERLAND |
| CO-INVESTIGATORS | ||
| Name | Country | |
| A. Le Brun | FRANCE | |
| A. Finoguenov | FINLAND | |
| L. Lovisari | ITALY | |
| I. McCarthy | UNITED KINGDOM | |
| B. Oppenheimer | UNITED STATES | |
| H. Lietzen | ESTONIA | |
| E. Tempel | ESTONIA | |
| G. Mamon | FRANCE | |
| G. Schellenberger | UNITED STATES | |
| M. Sun | UNITED STATES | |
| S. Ettori | ITALY | |
| ABSTRACT | |
| Every major modern hydrodynamical simulation suite now includes a prescription for AGN feedback to reproduce realistic populations of galaxies. However, these simulations generally do not offer much insight into the nature of feedback. On the other hand, the hot gas content of galaxy groups is highly sensitive to the implemented feedback scheme: the predicted gas fraction differs by an order of magnitude from one simulation to another. Here we propose to observe a sample of 40 galaxy groups exhibiting X-ray emission on scales >12', with the aim of providing benchmark thermodynamic and gas fraction profiles out to R500 without requiring any extrapolation. The proposed program will gather a well controlled sample of systems spanning an order of magnitude in mass 1e13 < M500 < 1e14 Mo. | |
| PAPERS |
| - CLASS 1: | papers that present specific XMM-Newton observations |
| - CLASS 2: | papers that refer to published XMM-Newton results with complementary observations, follow-up analysis, or theoretical analysis |
| - CLASS 3: | further deliveries which resulted from the program and which are made available to the community (e.g. source catalogues, processed images or spectra in public data base) |
| - CLASS 4: | comments and suggestions from PI |