We propose to make a detailed broad-band X-ray spectroscopic study of the radioquiet QSO (RQQ) Kaz 102. This RQQ had a power-law spectrum with a photon indexGamma=1 with our ASCA observation. We also found a spectral variability over thetimescale of years, from Gamma=2.2 during the ROSAT All Sky Survey to Gamma=1during the Einstein/ASCA observations. From our ASCA spectra, we couldntdiscriminate whether the apparently unusual hard spectrum was caused by warmabsorber, Compton reflection, or a simple featureless power-law continuum. Highquality spectroscopy with XMM-Newton is essential to unveil the physical natureof the enigmatic hardness and spectral variability of Kaz 102.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2006-08-16T09:43:26Z/2006-08-16T17:03:44Z
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 Takamitsu Miyaji, 2007, 'What is the Physical nature of Kaz 102: an Enigmatic X-ray Hard Qadio Quiet QSO', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-l6idnd4
