|Title||THE DEPENDENCE OF CORONAL STRUCTURE ON STELLAR ROTATION USING YOUNG K DWARFS|
|Author||Dr ALEXANDER BROWN|
|Description||We will study how coronal structure changes as a function of rotation rate by obtaining RGS and EPIC spectra for a sample of essentially identical, nearby (within 50 pc), Pleiades-age K dwarfs. Our targets (HD220140 2.76d, HD174429 0.95d, HD17925 6.6d, and HD82443 5.4d), plus stars already observed,cover the rotation period range from 0.5 to 6.6 days,and thus sample both the saturated and linearly-dependent portions of the coronal rotation-activity relation. We will measure coronal temperature-emission measure distributions, elemental abundances, and electron densities, investigate the coronal energy budget and how it relates to TR properties, and combine our results with those for other K dwarfs (e.g.AB Dor) to understand how activity level controls coronal structure.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2006-06-29T00:00:00Z, 020306, 17.56_20190403_1200. https://doi.org/10.5270/esa-q2tdnxs|