|Title||The Coronae of G Giants|
|Author||Dr Philippe Gondoin|
|Description||We propose to perform XMM-Newton observations of two slowly rotating G giants, HD 85444 and HD 141714, for a total exposure of 158 ksec. RGS and EPIC spectra will be used to constrain the geometry of coronal loop systems in their coronae. Results will be compared with those obtained from the analysis of XMM-Newton spectra of rapidly rotating G giants. The study intend to test whether a transition from star-size magnetic structures to compact coronal arcades occurs in the coronae of giants between slow and fast rotators.|
|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, 2004-03-29T00:00:00Z, 014037, 17.56_20190403_1200. https://doi.org/10.5270/esa-pizwwht|