We propose to observe 3 Magnetic Chemically Peculiar stars in order to getmoderately-exposed PN spectra of two of them known to be X-ray sources, and totry and detect emission from the third star. These X-ray sources are moderatelyfaint and spectrally soft, and hence the XMM-Newton EPIC is the best instrumentto observe them. We will analyze the spectra for evidence that the X-rayemitting plasma is intrinsic to the MCP stars rather than from unresolvedlow-mass companions, e.g., by determining elemental abundances to see if theyare significantly non-solar. We will also study the X-ray emission, both overthe entire detected energy range and as function of energy, as a function oftime, and will also apply for supporting contemporaneous VLA observations.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2003-09-05T19:21:12Z/2003-09-06T01:31:22Z
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 Stephen Drake, 2004, 'Are Magnetic He--W/Si Stars Intrinsic X-Ray Emitters', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-48dbzy3
