The small group of Oe stars are usually considered as the hot analogs of theBe-type objects. A possible explanation for their equatorial outflow is thattheir stellar wind is magnetically channeled towards the equator, where it formsa circumstellar disk. A magnetic signature is best unveiled in the high-energydomain. We therefore request observations of the three brightest Oe stars,HD45314, HD60848 and HD155806, for 20ks each in order to pinpoint the origin oftheir Oe characteristics.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2008-08-26T02:00:34Z/2008-08-26T12:15:47Z
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, Dr Yael Naze, 2009, 'Probing the magnetic confinement of the winds of Oe stars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-oudf6q4
