We have initiated a project to diagnose the intertwined processes of gasheating, dust settling and chemical processing in a set of well-characterizeddisks around T Tauri stars. We have developed detailed models describing gas anddust evolution in accreting disks irradiated by X-ray and UV photons. Thesemodels are tested by molecular diagnostics obtained with (sub-)millimeterinterferometers. However, detailed X-ray spectra are not yet available for manyof these objects. Here, we request observing time to obtain X-ray spectra fromseveral disk-harboring T Tau stars at various inclinations, which will allow tomeasure gas-to-dust ratios and provide important input to our chemical andturbulent models of circumstellar disks.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2009-02-10T00:33:27Z/2009-02-10T13:52:01Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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.
European Space Agency, Dr Manuel Guedel, 2010, 'Gas comma Dust comma and X-Rays in the Disks around T Tauri Stars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-mapnjpe
