We propose to observe with XMM-Newton the Z source GXvirgul340+0 for 40 ks. A broademission feature compatible with a highly ionized iron line has been detectedboth in BeppoSAX and in Chandra observations of the source. The Chandra spectrumsuggests that the line might be of relativistic origin, but does not allow todiscriminate between Compton and relativistic broadening of the line. Thesuperior collecting area at the iron line energy of XMM-Newton is required togive a definitive answer to the problem of the origin of this broad line.
Instrument
EMOS1, EPN, RGS1, RGS2
Temporal Coverage
2007-09-02T12:58:10Z/2007-09-03T02:33:22Z
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 Antonino D'Ai, 2008, 'XMM Observation of GX 340+0: study of the Fe Kalpha region', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-vlgfun2
