|Title||X-ray views of young Sun-like stars with debris disks|
|Author||Dr Antonio Maggio|
|Description||We propose to perform X-ray observations of two young Sun-like stars which show evidence of circumstellar debris disks, likely associated to planetary formation. In particular, we aim to observe DK Dra, a 30 Myr old G-type dwarf, characterized by a warm (T virgul110 K) dusty disk at 4-6 AU from the star, and HD 107146, a young (100 Myr) solar twin, with a cold extended (virgul200 AU) debris disk which was recently resolved in scattered light, and at submillimetric and millimetric wavelengths. The proposed observations will allow us to address several issues concerning the formation and evolution of planetary systems around Sun-like stars, the influence of high-energy radiation on the circumstellar medium, and to complement previous studies on the evolution of the coronal emission of solar-type stars.|
|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, 2010-07-11T00:00:00Z, 060249, 17.56_20190403_1200. https://doi.org/10.5270/esa-qzgkb2p|