We propose to observe a flux- and volume-limited complete sample of GPS radiogalaxies. The goal of the proposals is to determine: a. the presence of hotconfining gas around the active nucleus, and its properties, through itsoptically thin soft X-ray emission; b. the presence of cold environment gasthrough the measurement of X-ray absorption - in the most extreme case,Compton-thick. These measurements will provide tests for the current scenariosto explain the origin of these objects. We request 4 targets to be observedwithin the XMM-Newton AO2, for a total allocation time of 80 ks. This listincludes 1404+286, the first GPS radio galaxy where a poor quality ASCAobservation suggests the above components may have been simultaneously detected.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2003-01-31T19:04:50Z/2003-02-01T01:26:46Z
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 Matteo Guainazzi, 2004, 'The X-ray weakness of GPS radio galaxies:a volume-limited complete sample', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-co1vvwz
