| Proposal ID | 072101 |
| Title | Mapping the Inner Accretion Disk Wind in the Quasar PDS 456 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721010201 |
| DOI | https://doi.org/10.5270/esa-qsixpuj |
| Principal Investigator, PI | Dr James Reeves |
| Abstract | PDS 456 is the most luminous nearby AGN, more typical of quasars at highredshift. A previous 40ks XMM-Newton (2001) observation revealed deep, highlyionised absorption at iron K and at 1 keV in the RGS spectrum. Subsequent Suzakuobservations resolved the powerful ionised outflow, moving at 0.25c and revealeda direct response of the iron K absorption to a decrease in the ionising flux.We propose to monitor the remarkable spectral variability and outflow from PDS456, through a series of 5x100ks XMM-Newton observations. From the timescale ofthe absorber variability we will probe the inner structure of the quasar wind,on scales of 10s-100s of Rg from the black hole and determine the intrinsicmechanism for the rapid variability in PDS 456. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2013-08-27T04:23:26Z/2014-02-27T22:52:06Z |
| 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 | 2015-03-26T23:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "absorber variability", "powerful ionised outflow", "XMM", "quasar pds 456", "rapid variability", "inner structure", "ionised absorption", "quasar wind", "pds 456", "xmm newton 2001", "XMM-Newton", "spectral variability", "subsequent suzaku", "luminous nearby agn", "ionising flux", "5x100 xmm newton", "rgs spectrum" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr James Reeves, 2015, 'Mapping the Inner Accretion Disk Wind in the Quasar PDS 456', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-qsixpuj |