|Title||HD 100546 - A Herbig Star Surrounded by a Formative Planetary System|
|Author||Dr Stephen Skinner|
|Description||A protoplanetary system consisting of at least two giant planets surrounds the young nearby Herbig Be star HD 100546. The inner protoplanet orbits within 13 AU of the star and is exposed to strong stellar UV and X-ray radiation. The detection of very warm disk gas provides evidence that stellar heating is affecting physical conditions in the planet-forming environment. Chandra detected HD 100546 in two short 2.6 ks exposures but there are insufficient counts to reliably extract spectral parameters. We propose a deeper follow-up observation with XMM to obtain a spectrum of sufficient quality to determine the X-ray absorption, temperature distribution, and luminosity. We will use the XMM data to determine the X-ray heating and ionization rates in the disk.|
|Publication||X-Ray Emission and Disk Irradiation of HL Tau and HD 100546 . Skinner, Stephen L., Gu00fcdel, Manuel, . ApJ . 888-15 . 2020 . 2020ApJ...888...15S ,
|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, 2016-07-23T22:00:00Z, 076179, PPS_NOT_AVAILABLE. https://doi.org/10.5270/esa-euhg8xn|