| Proposal ID | 050158 |
| Title | A Promising Ultra-High Velocity Outflow in PDS 456 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0501580101 |
| DOI | https://doi.org/10.5270/esa-wmbrncp |
| Principal Investigator, PI | Dr Ehud Behar |
| Abstract | Although still controversial, ultra-high velocity outflows (UHVOs definedloosely by velocities exceeding 10,000 km/s) in AGNs are potentially the mostexciting new discovery in AGN physics of the XMM-Newton and Chandra era. Theluminous quasar PDS 456 is the brightest X-ray source among the grating-detectedUHVOs. We propose to obtain the best yet high-resolution spectrum of a UHVOsource. Using RGS for the soft X-ray band and EPIC for the Fe-K spectral region,we aim at measuring the UHVO velocity, column density, and thus its mass outflowrate and kinetic luminosity. Presently, the XMM-Newton/RGS with its higheffective area is the only viable configuration that can guarantee the high S/Nspectrum required for this study. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2007-09-12T01:07:18Z/2007-09-15T02:41:18Z |
| 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 | 2008-10-26T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "xmm newton", "spectral region", "kinetic luminosity", "agn physics", "uhvo source", "soft xray band", "viable configuration", "resolution spectrum", "brightest xray source", "EPIC", "chandra era", "mass outflow rate", "XMM-Newton", "column density", "uhvo velocity", "pds 456", "000 km", "velocity outflow", "XMM", "promising ultra" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Ehud Behar, 2008, 'A Promising Ultra-High Velocity Outflow in PDS 456', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-wmbrncp |