A dataset provided by the European Space Agency

Name 040455
Title What is the Physical nature of Kaz 102: an Enigmatic X-ray Hard Qadio Quiet QSO
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0404550101

DOI https://doi.org/10.5270/esa-l6idnd4
Author Dr Takamitsu Miyaji
Description We propose to make a detailed broad-band X-ray spectroscopic study of the radio quiet QSO (RQQ) Kaz 102. This RQQ had a power-law spectrum with a photon index Gamma=1 with our ASCA observation. We also found a spectral variability over the timescale of years, from Gamma=2.2 during the ROSAT All Sky Survey to Gamma=1 during the Einstein-ASCA observations. From our ASCA spectra, we couldnt discriminate whether the apparently unusual hard spectrum was caused by warm absorber, Compton reflection, or a simple featureless power-law continuum. High quality spectroscopy with XMM-Newton is essential to unveil the physical nature of the enigmatic hardness and spectral variability of Kaz 102.
Publication No observations found associated with the current proposal
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 Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2007-09-10T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2007-09-10T00:00:00Z, 040455, 17.56_20190403_1200. https://doi.org/10.5270/esa-l6idnd4