A dataset provided by the European Space Agency

Name 086222
Title Excavating a dinosaur in the Ophiuchus Cluster


DOI https://doi.org/10.57780/esa-7y7k3br
Author Dr Maxim Markevitch
Description The Ophiuchus cluster exhibits a curious concave gas discontinuity near its core. It was discovered by Werner et al, who considered a possibility of it being a boundary of an AGN-inflated bubble, but discounted it because it required too powerful an outburst. Using very low-frequency (70-240 MHz) data from MWA-GLEAM and GMRT, we found that it is in fact a giant bubble filled with diffuse radio emission with an extremely steep spectrum. It appears to be a fossil of the most powerful AGN outbursts seen in any cluster - with the central AGN being a negligible radio source at present. We propose to survey this sector of the cluster to map the X-ray cavity, look for signs of cluster-scale sloshing possibly triggered by this powerful event (hinted at by ROSAT), and clarify the merger details.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2020-08-31T00:25:44Z/2021-03-19T08:10:07Z
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 2022-04-16T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2022-04-16T00:00:00Z, 086222, 19.16_20210326_1200. https://doi.org/10.57780/esa-7y7k3br