Currently, the largest complete local X-ray cluster sample with full highquality X-ray coverage is HIFLUGCS. Its selection is based on the ROSAT All-SkySurvey and complete X-ray follow-up has been performed with Chandra andXMM-Newton, resulting in numerous applications in cluster physics and cosmology.The combination of high completeness, large sample size, and high qualityfollow-up has been crucial for this wide applicability. Here, we propose asixfold increase in sample size with a new complete high quality sample of virgul400clusters, eeHIFLUGCS. We demonstrate that this sample constitutes the ultimatestep before eROSITA and that this significantly increased statistics will enablesubstantial (factor virgul3) improvements in precision as well as qualitatively new tests.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2015-06-11T09:20:16Z/2015-12-17T15:26:00Z
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, Prof Thomas Reiprich, 2017, 'eeHIFLUGCS: X-Ray Masses for a Complete Sample of about 400 Galaxy Clusters', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-fu69vnc
