|Title||X-ray Emission from Hydrogen Poor PNe with [WC]-type Central Stars|
|Author||Dr Rodolfo Montez|
|Description||The effects of heat conduction, though promising in application to H-rich PNe, are uncertain in the case of H-poor PNe. Here, we propose observations of two H-poor, [WC]-type, PNe, NGC 6369 and NGC 1501. These two PNe, which harbor central stars with high effective temperatures, will provide heretofore missing constraints on evolutionary models of PNe and thereby motivate the development of H-poor heat conduction studies. The large (20-30 radii), well defined shells of these nebulae, combined with their moderate extinction and relative proximity, make them optimal candidates for X-ray detection and study in moderate (40 and 25 ks) exposure times with XMM-Newton.|
|Publication||No observations found associated with the current proposal|
|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, 2000-01-02T00:00:00Z, 067319, 17.56_20190403_1200. https://doi.org/10.5270/esa-x5sdekm|