| Name | 020418 |
| Title | DARK MATTER IN THE RELAXED GALAXY CLUSTER A2589 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204180101 |
| DOI | https://doi.org/10.5270/esa-di2qzda |
| Author | European Space Agency |
| Description | There is now a great urgency to discover the nature of the dark matter (DM) which, along with the dark energy, comprise the foundation of the new cosmological paradigm. A2589 is an ideal target for X-ray studies of its DM because it is bright, nearby (z=0.042), and has an exceptionally smooth relaxed morphology as revealed by the Chandra and ROSAT images. We propose an XMM-EPIC observation of A2589 to map the DM over 0.01-0.3r_vir. The radial DM density profile will be compared to theoretical profiles especially to address the ..core controversy. for DM halos. We will also calculate the (1) ellipticity of the DM, (2) total gas fraction, its radial variation, and Omega_m, and (3) iron abundance profile and assess its implications for SNe enrichment using theoretical gasdynamical models. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-06-04T11:17:42Z/2004-06-05T00:19:29Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2005-07-04T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2005, Dark Matter In The Relaxed Galaxy Cluster A2589, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-di2qzda |