|Title||A Direct Test of the Fanaroff-Riley Dichotomy in the Nuclei of Radio Galaxies|
|Author||Dr Daniel Evans|
|Description||A major puzzle in AGN physics is whether the Fanaroff-Riley dichotomy observed in large-scale structures of radio galaxies is a result of the impact of the hot-gas environment on the jet propagating through it, or instead due to intrinsic differences in the nuclei of these sources. Our X-ray studies of radio-galaxy nuclei have suggested that there may indeed be a nuclear Fanaroff-Riley dichotomy, but the crucial observations needed to confirm this have yet to be made. We propose a series of short (10-15 ks) EPIC observations of 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 the spectra of these sources, directly testing for a nuclear Fanaroff-Riley dichotomy.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2008-06-01T00:00:00Z, 040405, 17.56_20190403_1200. https://doi.org/10.5270/esa-tygmbp0|