|Title||Constraining Dust Grain Models with X-Ray and Multiwavelength Observations|
|Author||Dr Lynne Valencic|
|Description||While interstellar dust is vitally important to Galactic cycling, necessary in both stellar system and molecule formation, the grains. exact nature remains mysterious. An improved understanding of dust will lead to robust models that can more accurately recover intrinsic spectral energy distributions, as well as probing the grains. environment. Current grain models, constrained by UV-NIR regimes and elemental abundances, are degenerate; we must look to other wavelength regimes to break the degeneracy and thus produce more realistic models. X-ray dust halos observed with XMM-Newton-EPIC are an excellent, and mostly untapped, grain characteristic diagnostic and can provide badly needed constraints on grain models.|
|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, 2009-04-02T00:00:00Z, 050003, 17.56_20190403_1200. https://doi.org/10.5270/esa-f74vvrw|