| Proposal ID | 015335 |
| Title | The hard X-ray spectra of symbiotic stars: Any need for colliding winds |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0153350101 |
| DOI | https://doi.org/10.5270/esa-0s9rv7l |
| Principal Investigator, PI | Dr Peter Wheatley |
| Abstract | I have proposed a new interpretation of the X-ray spectra of symbiotic stars:that they are dominated by absorption by the partially-ionised wind of the redgiant, and not by emission from colliding winds as was previously thought.My interpretation predicts that all systems with apparent colliding-wind ROSATspectra should also have hard X-ray emission. I propose XMM-Newton observationsof three bright symbiotic stars aimed at detecting this emission. Once thecolliding-wind model has been disproved these observations will also be used tomodel the partially-ionised absorption which will provide a powerful probe ofthe red giant wind and of wind accretion onto a compact object. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2002-10-14T10:14:54Z/2002-10-14T15:05:12Z |
| 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 | 2003-11-16T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "XMM", "xray spectra", "XMM-Newton", "wind accretion", "partially ionised absorption", "colliding winds", "hard xray emission", "hard xray spectra", "xmm newton", "partially ionised wind", "symbiotic stars", "powerful probe", "ROSAT", "red giant", "colliding wind model", "compact object", "red giant wind" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Peter Wheatley, 2003, 'The hard X-ray spectra of symbiotic stars: Any need for colliding winds', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-0s9rv7l |