| Name | 055618 |
| Title | The nature of the low energy turnover in powerful FRII sources |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0556180101 |
| DOI | https://doi.org/10.5270/esa-5404go3 |
| Author | Ms Mary Erlund |
| Description | The direct detection of the low-energy turnover in the eastern hotspot of 6C0905+3955 puts serious constraints on the models of the acceleration process. To detect similar turnovers, and investigate their dependence on luminosity, we have chosen a sample of large, powerful, distant, FRII radio sources that contain huge reservoirs of aged synchrotron plasma, emitting X-rays via inverse-Compton scattering of CMB photons. We aim to exploit XMM.s excellent soft response and sensitivity to detect this emission and in doing so expand not only our sample of sources with putative low-energy turnovers in their hotspots but also measure the energy contained in the low Lorentz-factor electrons in these sources, which has important implications for the energy dumped into any group or cluster medium. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2008-05-03T10:48:14Z/2008-09-30T01:05:45Z |
| 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 | 2009-11-08T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Ms Mary Erlund, 2009, 055618, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5404go3 |