| Name | 088471 |
| Title | An XMM-Newton+HST study of an extreme, high-redshift cluster merger |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0884710101 |
| DOI | https://doi.org/10.57780/esa-eyllfta |
| Author | European Space Agency |
| Description | We propose XMM-Newton+HST observations of SPT-CLJ2228 5828, a high-redshift (z=0.73) galaxy cluster merger. It exhibits two widely-separated (940 kpc) centers in the galaxy distribution with counterparts identified in a weak lensing analysis. From an SPT-SZ map, the cluster gas appears to be located in between the two peaks of the galaxy distribution and mass map, suggesting a dissociative merger. If confirmed, SPT-CLJ2228 5828 would be among the widest dissociated mergers known. The requested high-resolution X-ray observations will allow us to confirm the dissociated merger nature and to constrain the cluster X-ray temperature and luminosity to 10%. We request complementary HST observations to substantially improve the mass reconstruction using strong and weak gravitational lensing. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-05-01T07:24:36Z/2021-05-02T10:56:16Z |
| Version | 19.16_20210326_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 | 2022-06-01T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2022, An Xmm-Newton+Hst Study Of An Extreme Comma High-Redshift Cluster Merger, 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-eyllfta |