|Title||TESTING COLLIDING WIND SHOCK MODELS IN THE WR + O BINARY SYSTEM WR 147|
|Author||Dr STEPHEN SKINNER|
|Description||The X-ray emission of massive WR + OB binaries is thought to originate mainly in a colliding wind (CW) shock between the two stars. Rigorous observational tests of CW shock models have been hampered by imprecise knowledge of the binary components and their winds and by the dearth of WR + OB binaries bright enough in X-rays to acquire good spectra. An exception is the WN8 + O5-7 binary WR 147 whose stellar properties are well-constrained by HST STIS spectra and radio interferometry. We propose to obtain the first high-quality X-ray spectrum of WR 147 with XMM. The EPIC spectra will remove temperature ambiguities that are present in faint ASCA spectra and comparisons of the data with synthetic spectra from numerical hydrodynamic simulations will stringently test CW models.|
|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, 2005-12-04T00:00:00Z, 020074, 17.56_20190403_1200. https://doi.org/10.5270/esa-8sjggza|