We propose to observe the coronal emission from twosuper-metal-rich (SMR) late-type stars, in order to determine theplasma emission measure distribution vs. temperature, and individualelement abundances, from the analysis of EPIC and RGS spectra.These observations, will help to test current hypotheses about the linkbetween photospheric and coronal abundances, and the possiblerelationship between activity level and metal depletion in stellarcoronae. The characteristics of the coronal structures will be alsostudied by means of direct plasma density estimates from He-like triplets.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2001-01-16T23:52:56Z/2001-01-17T22:10:23Z
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.
European Space Agency, Dr Antonio Maggio, 2002, 'Coronal thermal structure and abundances of super-metal-rich late-type stars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-04b5cwj
