|The properties and environments of double-double radio galaxies
|Dr Chiranjib Konar
|Double-double radio galaxies (DDRGs), in which two epochs of jet activity can be observed in a single object, are very important for investigating many aspects of radio-galaxy physics including particle content, source dynamics, environmental impact and duty cycles. We request XMM observations of 3 DDRGs, in order to detect inverse-Compton emission from their radio lobes and thermal emission from their surrounding hot-gas. This will allow us to measure both the internal pressure from the relativistic plasma, and external pressures acting on the outer lobes, which are no longer fed by the jets, and are expected to be in pressure balance. We can therefore investigate the presence of heavy particles in the outer lobes, which may be crucial for the inner lobe confinement.
|No observations found associated with the current proposal
|EMOS1, EMOS2, EPN, OM, RGS1, RGS2
|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
|European Space Agency, 2011, 060126, 17.56_20190403_1200. https://doi.org/10.5270/esa-08gpqbj