| Name | 040405 |
| Title | A Direct Test of the Fanaroff-Riley Dichotomy in the Nuclei of Radio Galaxies |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0404050101 |
| DOI | https://doi.org/10.5270/esa-tygmbp0 |
| 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 |
| Temporal Coverage | 2006-08-08T05:51:03Z/2007-04-29T00:52:57Z |
| 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 | 2008-06-01T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Daniel Evans, 2008, 040405, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-tygmbp0 |