We propose a follow-up XMM observation of THETA Muscae with WC star in front.Our primary goal is to identify the location of the Radiative RecombinationContinua (RRC) by monitoring the flux change in the difference orbital phasefrom the previous observation. If the RRC can exist in any binary with a varietyof the orbital period, we can expect the RRC is common in WC binary. If the RRConly exists in the short binary with period of an order of 10 days, it stronglyrestricts the physical parameters, such as density, of the plasma that formsRRC. The RRC is very unique structure to the WC+O binary, which is hardly seenin the other celestial objects.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2009-07-19T08:31:27Z/2009-07-19T23:36:44Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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.
European Space Agency, Mr Yasuharu Sugawara, 2010, 'Enigmatic X-Ray Emission from a Wolf-Rayet Binary Theta Muscae', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-3qjpxe5
