GT- We expect variable Fe L emission features in the main-on andshort-on states, as well as changes in the absorbing column density andcontinuum normalization during pre-eclipse dips.Also, differences in the RGS and EPIC PN pulse resolved spectra for main-on andshort-on states will test the tilted accretion disk models used to explain the35 day pseudoperiodic cycle.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2001-03-04T22:14:18Z/2003-03-29T04:58:24Z
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 Albert Brinkman, 2004, 'High resolution Spectroscopy of Hercules X-1 in the High State', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-an006a7
