|Title||The Symbiotic X-ray Binary 3A 1954+319: A close-up view of a slowly rotating Neu|
|Author||Mr Sebastian Mueller|
|Description||We propose for a triggered 40 ksec XMM-Newton-observation of the variable symbiotic X-ray binary 3A 1954+319. Studying the spectral properties of this neutron star system during a bright phase will help us to understand the physics of the accretion region as well as the medium originating from the stellar wind surrounding the neutron star. The so far nearly unobserved soft part of the spectrum will provide us with information about the 6.4 keV iron Ka line complex and the temperature and composition of the absorbing medium close tho the X-ray source. Additionally we intend to study the phase resolved behavior of the spectral parameters which are assumed to be strongly dependent on the pulse phase.|
|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, 2012-10-25T00:00:00Z, 067513, 17.56_20190403_1200. https://doi.org/10.5270/esa-mcf4g46|