|Title||XMM follow-up of the massive particle accelerator HD167971: half a period after!|
|Author||Dr Michael De Becker|
|Description||The investigation of massive colliding-wind binaries offers the opportunity to probe stimulating physical processes, including copious X-ray emission and particle acceleration. Among the massive systems known accelerate particles, HD167971 is of particular interest in the sense that it is a quite long period system (about 21 years) whose wind-wind interaction is a powerful thermal (in X-rays) and non-thermal (in radio) emitter, despite the significant geometrical dilution of the wind outflows due to the rather large stellar separation. This fact makes HD167971 the longest period massive system accelerating particles whose X-ray emission is easily accessible with present observatories. The aim is to pursue its X-ray study in light of new crucial information about its orbit.|
|Publication||Long-term XMM-Newton investigation of two particle-accelerating colliding-wind binaries in NGC 6604: HD 168112 and HD 167971 . De Becker, M., . MNRAS . 451-1070 . 2015 . 2015MNRAS.451.1070D ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Is the Pollock.s paradigm of X-ray emission for O stars correct? . Ryspaeva, E. B., Kholtygin, A. F., . AN . 338-959 . 2017 . 2017AN....338..959R ,
Analysis of the X-ray emission of OB stars: O stars . Ryspaeva, Elizaveta, Kholtygin, Alexander, . RAA . 18-104 . 2018 . 2018RAA....18..104R ,
|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, 2015-09-26T22:00:00Z, 074099, 17.56_20190403_1200. https://doi.org/10.5270/esa-0y3aidp|