A dataset provided by the European Space Agency

Name 082169
Title Understanding the Nature and Environment of Ultra-Steep Spectrum Radio Relics


DOI https://doi.org/10.5270/esa-uogus5s
Author Dr Scott Randall
Description We propose follow-up observations of three galaxy clusters containing ultra-steep spectrum (USS) radio relic sources that have existing low-frequency GMRT observations. Comparing the morphology and thermal structure of the ICM to the diffuse radio emission will allow constraints to be placed on the nature of these relatively poorly studied sources. For example, a correlation between merger shocks and radio emission implies direct shock acceleration, as with classical radio relics, whereas a lack of correlation in a disturbed system suggests acceleration of an existing particle population by adiabatic compression.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2018-04-20T20:52:21Z/2018-08-13T07:06:41Z
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 2019-08-24T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2019-08-24T22:00:00Z, 082169, 17.56_20190403_1200. https://doi.org/10.5270/esa-uogus5s