| Proposal ID | 080184 |
| Title | RGS Observations of Peculiar Knots in Tychos SNR |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0801840201 |
| DOI | https://doi.org/10.5270/esa-wtl76f8 |
| Principal Investigator, PI | Dr Brian Williams |
| Abstract | Tychos SNR provides a pristine laboratory of what remains four and a halfcenturies after a Type Ia SN. We propose an observation of the southeast portionto observe two bright ejecta knots of interest. Both are Fe-rich, while onecontains significant Si as well. RGS observations of these knots will reveal thenumerous Fe L-shell and Si lines present, from which we can determine the stateof the reverse-shocked ejecta, the thermal line broadening present, search foroxygen, an indicator of a double-degenerate supernova, and possibly measure thetime evolution of the Fe K$alpha$ line at 6.5 keV, something never before done.Observations such as these will be crucial for understanding the physics ofshocked plasmas in preparation for the next generation of high spectral resolution X-ray observatories. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2017-08-04T20:52:35Z/2017-08-13T08:05:57Z |
| 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 | 2018-08-30T22:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "shocked plasmas", "half centuries", "double degenerate supernova", "si lines", "numerous fe", "bright ejecta knots", "time evolution", "pristine laboratory", "fe rich", "thermal line broadening", "type ia sn", "reverse shocked ejecta", "supernova remnant" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Brian Williams, 2018, 'RGS Observations of Peculiar Knots in Tycho's SNR', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-wtl76f8 |