|Title||X-ray scanning a supergiant wind-accretor: eclipse egress in Vela X-1|
|Author||Dr Peter Kretschmar|
|Description||We propose to use one XMM-Newton orbit observing the eclipse egress and early post-eclipse phase of the VelavirgulX-1-HDvirgul77581 binary system. We plan to use EPIC-pn CCD spectra and pulse profiles together with RGS results for emission lines in order to study in unprecedented detail the emerging neutron star.s emission and measure the scale height of the supergiant.s extended atmosphere with high accuracy. Small time scale variations in the observed column density will track clumps in the lower stellar wind.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, 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, 2009-02-08T00:00:00Z, 040643, 17.56_20190403_1200. https://doi.org/10.5270/esa-hnev4dv|