|Title||Interstellar dust silicates unveiled through the scattering halo of GX9+1|
|Author||Dr Elisa Costantini|
|Description||We propose to observe the bright X-ray source GX 9+1 as the optimal candidate to study the chemistry of silicates in the vicinity of the galactic center. We will study the two phases of ISM (gas and dust) through the spectroscopy of the absorbed spectrum, and the spectral and spatial analysis of the X-ray dust scattering halo, with particular emphasis on the Mg and Si features. This approach has been successful for another XMM-Newton target (Cyg X-2, Costantini et al. 2005), unveiling, for the first time, features from the interstellar dust constituents. To perform a quantitative study of the chemistry of the interstellar dust grains, a large collecting area, a large field of view, and a broad band coverage, as provided by XMM-Newton, are essential.|
|Publication||Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
|Instrument||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, 2007-11-07T00:00:00Z, 040064, 17.56_20190403_1200. https://doi.org/10.5270/esa-lms9xle|