We aim to search for extended X-ray absorption fine structures (EXAFS), in thedirection of Cygnus X-2. This is driven by the recent significant detection byour group of EXAFS absorption in spectra in the line of sight towards Sco X-1,which opens up a new frontier in the study of interstellar dust. We now have thepossibility to probe the details of the composition and solid structure ofinterstellar dust particles by direct observations. By resolving EXAFSstructures in different line of sights we will enable a clearer identificationof the solid materials of which the dust particles are made of and will help toresolve questions on the generation and evolution of interstellar dustparticles.
Instrument
EPN, RGS1, RGS2
Temporal Coverage
2010-11-22T03:53:53Z/2010-11-26T21:52:02Z
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, Dr Cor de Vries, 2011, 'Resolving the structure of solid dust particles towards Cygnus X-2', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-wf4fvi2
