| Proposal ID | 020252 |
| Title | EVOLUTION OF THE X-RAY PROPERTIES OVER THE LIFETIMES OF RADIO-LOUD AGN |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0202520101 |
| DOI | https://doi.org/10.5270/esa-rkx66xl |
| Principal Investigator, PI | Dr IGNAS SNELLEN |
| Abstract | The new X-ray observatories have given us great insights into the energeticaccretion processes in active galaxies, providing important clues about possibleconnections between different classes of radio-quiet and radio-loud AGN.Although much of the current work is focused on parameterizing the X-rayemission of AGN, virtually nothing is known about the possible evolution of theX-ray properties over the lifetime of an AGN. We propose to perform the firstX-ray observations of the 5 most famous and extensively studied young GPS radiogalaxies in the sky. This will yield important information on the evolution ofthe accretion flow over the AGN-lifecycle, and the mass and distribution ofcircumnuclear material around young radio sources. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-12-25T19:30:08Z/2004-10-21T14:21:23Z |
| Version | 21.51_20241115_1113 |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2005-11-18T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "accretion flow", "radio quiet", "gps radiogalaxy", "radio loud agn", "agn lifecycle", "active galaxy", "radio sources", "xray emission", "xray properties", "xray observatories", "circumnuclear material", "energetic accretion processes" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr IGNAS SNELLEN, 2005, 'EVOLUTION OF THE X-RAY PROPERTIES OVER THE LIFETIMES OF RADIO-LOUD AGN', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-rkx66xl |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |