|Title||Classifying the compact object in the unusual X-ray binary CI Cam|
|Author||Dr Thomas Nelson|
|Description||CI Cam is a unique X-ray binary that represents either a potential new evolutionary pathway towards type Ia supernovae (if it is a white dwarf), or an ideal object to study accretion disk geometry at a regime where an advection dominated flow is expected (if it is a black hole or neutron star). However, existing data cannot discriminate between these possibilities. We propose a 120 ks observation of CI Cam with the primary objective of identifying the nature of the compact object. We will do this by 1) resolving the 6.7 He-like and 6.97 H-like Fe lines, if present 2) investigating the origin of the brightness fluctuations in the system and 3) obtaining the deepest observation yet of the faint soft component in order to constrain appropriate physical models.|
|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, 2013-03-13T00:00:00Z, 067205, 17.56_20190403_1200. https://doi.org/10.5270/esa-i00tlwi|