|Title||The Earliest Production of Hot Gas in Young Planetary Nebulae|
|Author||Dr Martin Guerrero|
|Description||Planetary nebulae (PNe) consist of stellar material ejected by stars with masses <10 solar masses. Both fast stellar winds and collimated outflows contribute to the shaping of PN shells and fill the shell interiors with shock-heated gas at temperatures higher than 10E6 K. XMM and Chandra observations have produced the first unambiguous detections of diffuse X- ray emission from PNe, but the observed X-ray luminosities of PNe are generally much lower than theoretical expectations. Observations of a few young PNe hint at a short-lived phase of bright X- ray emission in early evolutionary stages. We request XMM observations of 4 very young PNe to further investigate the earliest history and physical conditions of hot gas produced by fast winds and collimated outflows in PNe.|
|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, 2008-04-13T00:00:00Z, 040238, 17.56_20190403_1200. https://doi.org/10.5270/esa-elldo2p|