The XXL survey has constructed the most pure and reliable sample of distant(z>1) X-ray-selected clusters of galaxies, thanks to its well-calibratedselection function and our complete Chandra follow-up to identify anycontaminating point sources. In this proposal we initiate a programme of deeperXMM observations of these clusters to measure their properties and evolution,examine their morphologies, compare them with distant SZE-selected clusters, andprobe the parameter space where distant eROSITA clusters will be found. Werequest 268 ks to observe three clusters, completing an initial sample of sixChandra-validated z>1 XXL clusters.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2018-05-13T03:06:36Z/2019-02-06T03:37:02Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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.
European Space Agency, Dr Ben Maughan, 2020, 'A systematic study of z>1 XXL galaxy clusters', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-y8qqwg2
