Proposal ID | 074182 |
Title | Gas-Phase Abundance Variations from Dust Grain Sputtering in an SNR Shock |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0741820101 |
DOI | https://doi.org/10.5270/esa-o60fiep |
Principal Investigator, PI | Dr Brian Williams |
Abstract | Sputtering in an SNR shock erodes dust grains, returning elements such as Fe,Si, and Mg to the gas phase. Since these elements are thought to besignificantly depleted onto grains, the gas phase abundances in the post-shockregion of an SNR shock should be a function of the time since the gas wasshocked. This has never been directly observed, as doing so would require alarge, well-resolved, edge-on shock from an SNR, detailed infrared modeling ofthe emission from warm dust in the post shock region, and sufficient counts inthe X-ray spectra to place tight constraints on the abundances. The P7..region in the northeast Cygnus Loop satisfies all these criteria, and we proposea deep observation of this non-radiative shock region. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2014-05-27T05:18:13Z/2014-05-28T09:54:53Z |
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 | 2015-06-30T22:00:00Z |
Keywords | "supernova remnant", "supernova remnant shock", "infrared modeling", "returning elements", "gas phase abundance", "post shock region", "tight constraints", "xray spectra", "radiative shock region", "dust grain sputtering", "gas phase", "warm dust" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Brian Williams, 2015, 'Gas-Phase Abundance Variations from Dust Grain Sputtering in an SNR Shock', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-o60fiep |