|Title||Looking for binaries in old open clusters|
|Author||Prof Frank Verbunt|
|Description||We propose to observe the old open clusters NGC7142, NGC7789 and NGC3680. Based on the ROSAT observation of M67, we expect to detect up to 10 X-ray sources in each cluster. Most of these will be interacting binaries but a hot white dwarf and-or a cataclysmic variable may also be detected. Interacting binaries in old clusters are excellent test cases for the theory of binary evolution, in particular in relation to circularization and synchronization of the binary orbit by tidal forces. X-ray observations are an efficient way to identify such interacting binaries; furthermore, the detection of X-ray sources in old open clusters is interesting for the comparison with X-ray properties of globular clusters.|
|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, 2004-12-21T00:00:00Z, 015200, 17.56_20190403_1200. https://doi.org/10.5270/esa-swqdxs4|