A dataset provided by the European Space Agency

Name 014745
Title Confining the lobes of giant radio galaxies
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0147450301

DOI 10.5270/esa-v4eca84
Author Prof Mark Birkinshaw
Description Giant radio galaxies, which extend to more than 1 Mpc in size, pose a difficult physical problem. The radio lobes that they generate must span regions of very different gas density and pressure, and yet they maintain relatively uniform widths over their entire structures. This is difficult to achieve unless the lobes are propagating through a medium which is more extended, and more uniform, than the gas in a cluster of galaxies. We propose to use XMM to image a carefully-chosen set of four giant radio galaxies to detect X-ray emission from this external gas, and so characterise this unusual, and potentially cosmologically-important, medium.
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Cla...
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-03-26T09:21:45Z/2003-03-26T21:33:43Z
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 2004-04-16T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-04-16T00:00:00Z, 014745, 17.56_20190403_1200. https://doi.org/10.5270/esa-v4eca84