We propose XMM-Newton observations of Abell 3653, the rich cluster with one ofthe largest known cD galaxy peculiar velocities. Previous Chandra observationsof A2670 and A2107, two other clusters with large cD motions, have shown thatthey are merging systems. Our recent Chandra observation of Abell 3653 shows acold front (CF) associated with the high velocity cD galaxy. We will use thestagnation condition to determine the speed of the CF, which will be compared tohe optical z of the cD. Recent surveys show that rapidly moving cDs are notterribly rare. We will study the origin of these motions, and the implicationsfor the origin of cD galaxies, and the dynamics of cluster cores.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2013-03-18T08:14:31Z/2013-03-19T02:16:28Z
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 Craig Sarazin, 2014, 'Abell 3653 and the Origin of Large cD Peculiar Velocities', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-tqezuk1
