A dataset provided by the European Space Agency

Name 014035
Title Coronal abundances in RS CVn with well determined photospheric abundances


DOI https://doi.org/10.5270/esa-2h8ktyy
Author Dr Fabio Favata
Description 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 from the 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.
Publication No observations found associated with the current proposal
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 Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-03-25T00:00:00Z, 014035, 17.56_20190403_1200. https://doi.org/10.5270/esa-2h8ktyy