We propose to observe the star CN Leo (spectral type M6Ve) simultaneously withXMM-Newton in the X-ray and optical band (with its optical monitor) and withUVES on Kueyen to obtain time-resolved high-resolution spectroscopy. CN Leo doesshow frequent flares in the X-ray and optical band, hence we expect a number ofsuch events during the proposed observations. With theobservational setup thephotospheric, chromospheric and coronal energy losses of both the quiescent andflaring emission of CN Leo can be simultaneously recorded. The UVES observationswill cover the Fe XIII 3388.1 A line, which also traces the coronal emissionfrom CN Leo from the ground. With its superb spectral resolu tion (R virgul 45000) wecan study in detail the coronal and chromospheric dynamics.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2004-05-19T20:46:03Z/2006-05-24T02:29:31Z
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, Prof J RGEN SCHMITT, 2007, 'SIMULTANEOUS XMM-NEWTON AND UVES OBSERVATIONS OF THE FLARE STAR CN LEONIS', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-z64ray4
