A dataset provided by the European Space Agency

Name: Interstellar dust silicates unveiled through the scattering halo of GX9+1
Published: 2007-11-07T00:00:00Z

Proposal ID	040064
Title	Interstellar dust silicates unveiled through the scattering halo of GX9+1
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0400640101
DOI	https://doi.org/10.5270/esa-lms9xle
Principal Investigator, PI	Dr Elisa Costantini
Abstract	We propose to observe the bright X-ray source GX 9+1 as the optimal candidate tostudy the chemistry of silicates in the vicinity of the galactic center. We willstudy the two phases of ISM (gas and dust) through the spectroscopy of theabsorbed spectrum, and the spectral and spatial analysis of the X-ray dustscattering halo, with particular emphasis on the Mg and Si features. Thisapproach has been successful for another XMM-Newton target (Cyg X-2, Costantiniet al. 2005), unveiling, for the first time, features from the interstellar dustconstituents. To perform a quantitative study of the chemistry of theinterstellar dust grains, a large collecting area, a large field of view, and abroad band coverage, as provided by XMM-Newton, are essential.
Publications	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 \| http://ui.adsabs.harvard.edu/#abs/2014Ap&SS.354...97Y The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch Eric W. \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F Classification of 4XMM-DR9 sources by machine learning \|Zhang Yanxia Zhao Yongheng \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z
Instrument	EPN, OM, RGS1, RGS2
Temporal Coverage	2006-09-24T15:48:32Z/2006-09-24T19:10:25Z
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.
Creator Contact	https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published	2007-11-07T00:00:00Z
Last Update	2025-01-27
Keywords	"spatial analysis", "interstellar dust constituents", "broad band coverage", "scattering halo", "interstellar dust grains", "xmm newton", "XMM-Newton", "absorbed spectrum", "XMM", "optimal candidate", "ism gas", "galactic center"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Elisa Costantini, 2007, 'Interstellar dust silicates unveiled through the scattering halo of GX9+1', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-lms9xle