| Name | 015213 |
| Title | Weighing the largest mass concentrations in the Great Attractor region |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0152130101 |
| DOI | https://doi.org/10.5270/esa-f8zjtg4 |
| Author | European Space Agency |
| Description | We propose XMM observations of 10 galaxy clusters at z<0.075 , located within a 40\times 40 deg ^2 region around the approximate location of the Great Attractor (GA), to explain the observed large-scale flow toward and beyond the GA. All targets were found in the course of the CIZA X-ray cluster survey, 9 of them are new discoveries. Our total sample of 12, which also includes A3627 and Triangulum Australis, represents a complete census of the most X-ray luminous and thus likely most massive clusters in this region. The proposed observations will allow us to measure accurate cluster masses, which in turn will permit a reconstruction of the local gravitational field that is independent of and complementary to the one based on the density of IRAS-selected field galaxies. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-02-10T12:57:32Z/2003-09-06T05:13:13Z |
| 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 | 2004-10-09T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2004, Weighing The Largest Mass Concentrations In The Great Attractor Region, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-f8zjtg4 |