| Proposal ID | 014035 |
| Title | Coronal abundances in RS CVn with well determined photospheric abundances |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0140350101 |
| DOI | https://doi.org/10.5270/esa-2h8ktyy |
| Principal Investigator, PI | Dr Fabio Favata |
| Abstract | We propose to obtain good S/N RGS observations of two RS CVn-type binaries (V851 Cen and AG Dor) for which we have recently obtained detailed chemical analysis of their photospheric composition. This will allow to study the presence of a FIP (or inverse FIP, as recently indicated by XMM RGS analyses of other active binaries) by detailed comparison with their photospheric abundance -- rather than by comparison with a solar mix. This appears to be particularly r^ant as our photospheric analysis shows that the photosphere chemical composition for these stars appears to be significantly different fromthe solar one. The data obtained here will thus allow a detailed discussion of whether an inverse FIP effect is present in the corona of active binaries. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-03-07T15:04:55Z/2003-03-08T05:58:43Z |
| 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 | 2004-03-25T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "photosphere chemical composition", "stars appears", "photospheric abundance", "photospheric analysis", "photospheric composition", "xmm rgs analyses", "chemical analysis", "inverse fip", "inverse fip effect", "rs cvn", "XMM", "coronal abundance", "solar mix", "ag dor", "active binary" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Fabio Favata, 2004, 'Coronal abundances in RS CVn with well determined photospheric abundances', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-2h8ktyy |