We are proposing XMM observations of a small sample of Ultraluminous X-raysources (ULXs)which have high enough XMM counting rates to enable sensitivesearches for mHz QPOs and broadband power spectral features. Recent detection ofQPOs in a ULX in M82 demonstrates that timing studies can provide a powerful newtool to probe the properties of ULXs. Some of the primary goals of our studyinclude: 1) Search for mHz QPOs. 2) Obtain broad band power spectra to determinethe typical rms variability levels with photon energy and 3) To make detailedcomparisons with the timing properties of Galactic black hole systems of knownmass.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2004-09-26T06:55:52Z/2004-09-27T16:01:58Z
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 TOD STROHMAYER, 2005, 'X-RAY TIMING OBSERVATIONS OF ULTRALUMINOUS X-RAY SOURCES', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-qmulabd
