A major puzzle in AGN physics is whether the Fanaroff-Riley dichotomy observedin large-scale structures of radio galaxies is a result of the impact of thehot-gas environment on the jet propagating through it, or instead due tointrinsic differences in the nuclei of these sources. Our X-ray studies ofradio-galaxy nuclei have suggested that there may indeed be a nuclearFanaroff-Riley dichotomy, but the crucial observations needed to confirm thishave yet to be made. We propose a series of short (10-15 ks) EPIC observationsof the nuclei of 5 sources that span the Fanaroff-Riley divide in 178-MHz power.We will search for, and constrain the luminosity of, absorbed components in thespectra of these sources, directly testing for a nuclear Fanaroff-Riley dichotomy.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2006-08-08T05:51:03Z/2007-04-29T00:52:57Z
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 Daniel Evans, 2008, 'A Direct Test of the Fanaroff-Riley Dichotomy in the Nuclei of Radio Galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-tygmbp0
