|Title||An XMM Study of Low-Activity Coronal Stars of 1-2 Solar Masses|
|Author||Dr Stephen Drake|
|Description||We propose observing solar-mass stars having X-ray luminosities similar to the Sun.s so as to determine the thermal structure and elemental abundances Z characteristic of such .low-activity. coronae, observations of which are very underrepresented in the XMM GTO Program. We have selected 3 stars of different surface gravities (Tau Cet, Beta Hyi and Beta Gem) so that we can compare the coronal properties as a function of g. We will utilise the H- and He-like lines of abundant elements such as O, Ne, Mg, and Si, as well as the Fe L complex lines between 0.7 and 1.5 keV, and the continuum emission in other spectral regions to derive T and Z.|
|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, 2003-05-06T00:00:00Z, 000601, 17.56_20190403_1200. https://doi.org/10.5270/esa-n1h8bo4|