| Name | 020151 |
| Title | ABELL 520: A COMPLEX MERGING CLUSTER WITH AN UNUSUAL RADIO HALO |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0201510101 |
| DOI | https://doi.org/10.5270/esa-tmhtrmf |
| Author | European Space Agency |
| Description | The cluster Abell 520 is undergoing significant dynamical evolution. Optical data reveal a number of condensations at z=0.199. X-rays show an outer elongation NE-SW and perpendicular elongation NW-SE in the core. A 10 ks Chandra observation of the core reveals a bright X-ray tongue extending from the core outward, and a possible shock beyond the tip of the tongue. Radio data reveal the presence of diffuse central halo emission with a sharp edge at the shock location. Here we propose to investigate the effects of the merger on the ICM and the connection of the merger to the formation of the diffuse radio source. XMM-Newton is the only instrument capable of providing the sensitivity, field of view, and resolution required to study this complex merger system. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-09-16T07:25:57Z/2004-09-16T20:22:49Z |
| 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 | 2005-10-08T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2005, Abell 520: A Complex Merging Cluster With An Unusual Radio Halo, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-tmhtrmf |