Proposal ID | 060509 |
Title | The Effective Eddington Limit for AGN |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0605090101 |
DOI | https://doi.org/10.5270/esa-be3rw1l |
Principal Investigator, PI | Mr Ranjan Vasudevan |
Abstract | Feedback is an integral component of AGN and galaxy co-evolution. The outwardradiation pressure balances the inward gravitational force on the dusty gas inthe galaxy bulge at an effective Eddington limit, which is lower than thecanonical Eddington limit. We have shown that absorption in AGN in The Swift/BAT9-month survey is overwhelmingly located below the effective Eddington limit.Here we propose to observe the only three objects from this survey which are atthis limit. Other sources near this boundary exhibit warm absorbers andoutflows, and searching for evidence of such features in our proposedobservations will provide an unprecedented level of detail in understandingsources in which the AGN is in the process of shaping the host galaxy. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2009-08-06T11:26:55Z/2009-11-06T05:46:03Z |
Version | 17.56_20190403_1200 |
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 | 2010-11-27T00:00:00Z |
Keywords | "overwhelmingly located", "canonical eddington limit", "dusty gas", "galaxy co evolution", "galaxy bulge", "integral component", "effective eddington limit", "inward gravitational force", "month survey" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Mr Ranjan Vasudevan, 2010, 'The Effective Eddington Limit for AGN', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-be3rw1l |