|Title||High Resolution Spectroscopy of Knots in the Puppis A Supernova Remnant|
|Author||Dr Una Hwang|
|Description||We propose observations of two prominent knots in the Puppis A supernova remnant using the XMM gratings. These knots are comparable in extent to sources that have been successfully observed with the RGS, and have relatively high surface brightness compared to their surroundings. They are believed to be interstellar clouds in different density environments that are interacting with the remnant.s forward shock. Puppis A.s rich O, Ne, and Fe emission line spectrum is well-matched to the bandpass of the XMM gratings. High resolution spectra are the only way to directly measure line fluxes that would provide important diagnostics of the nonequilibrium ionization state of each element, and their relative abundances, including signatures of possible enrichment by the ejecta.|
|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, 2004-09-17T00:00:00Z, 015015, 17.56_20190403_1200. https://doi.org/10.5270/esa-f2rhjhc|