|Title||The X-ray coolest gas in cool core clusters|
|Author||Dr Jeremy Sanders|
|Description||We propose to continue our programme of deep RGS observations by observing the next best three clusters spanning a range of redshift, luminosity and temperature in order to make definitive statements about the range of temperature in the clusters and the level of cooling. All three clusters have cool cores, short central cooling times and central radio sources. The main spectral target is the FeXVII emission lines at 15 and 17A, the ratio of which depends on the gas temperature in the 3-7 million K range. In the case of A1835 we shall for the first time probe mass cooling rates similar to the observed star formation rate. These observations will exploit the unique capability of the RGS, and build on one of XMM.s major discoveries.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2009-08-27T00:00:00Z, 055183, 17.56_20190403_1200. https://doi.org/10.5270/esa-maob1mr|