|Title||Inner Disk Structure and Transport Mechanisms in the Transitional Disk around T|
|Author||Dr Alexander Brown|
|Description||To better understand how Earth-like planets form around low-mass stars, we propose to study the UV (HST), X-ray (XMM), and optical (LCOGT) variability of the young star T Cha. Changing sight lines through the disk allow measurement of the temperature and column density, and the physical properties of the dust grains, as well as determining the gas-to-dust ratio. Three 5 orbit visits, separated by 3-7 days, are required for use of analysis techniques comprising both differential "pair-method" comparison of spectra with differing A_v and detailed spectral fitting of gas absorption features at each epoch. The inner disk of T Cha allows study of the gas and dust structure in the terrestrial planet formation zone during this important rapid phase of protoplanetary disk evolution.|
|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, 2019-03-27T23:00:00Z, 081022, 17.56_20190403_1200. https://doi.org/10.5270/esa-8kxpjqk|