The magnetic field strength in the lobes of FRII radio galaxies and quasars is avital parameter for understanding their energetics and dynamics, since itcontrols the internal energy density and pressure. The only way of measuring itis by observing inverse-Compton emission from the lobes, but existing detectionsare marginal and do not give a consistent value for the ratio of particle tomagnetic field energy density in a typical radio source. XMM.s sensitivity toextended structure makes it the instrument of choice for a systematic search forinverse-Compton emission in typical FRII radio sources. We have selected a smallsample of such objects which will detect inverse-Compton emission, confirm itsnature by determining its spectrum, and measure magnetic field strength to 10%.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2003-12-15T20:07:05Z/2004-02-14T14:21:40Z
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 MARTIN HARDCASTLE, 2005, 'INVERSE-COMPTON EMISSION & PHYSICAL CONDITIONS IN LOBES OF FRII RADIO GALAXIES', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-z11qe4d
