| Proposal ID | 055267 |
| Title | A SURVEY OF NAL QUASARS WITH HIGH VELOCITY OUTFLOWS |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0552670201 |
| DOI | https://doi.org/10.5270/esa-gy9xdas |
| Principal Investigator, PI | Dr George Chartas |
| Abstract | Recent spectroscopic observations in the UV band have revealed high velocityoutflows in Narrow Absorption Line (NAL) quasars. Our analysis of exploratoryXMM-Newton observations of NAL quasars indicates that their UV and X-rayproperties connect smoothly to those of BAL quasars. The proposed expansion ofour exploratory sample will allow us to place constraints on correlationsbetween the amount of X-ray absorption and UV properties of the wind to betterunderstand the acceleration mechanism of quasar winds. We will test existingmodels of the nature of NAL quasars. The detected X-ray brightest objects fromthe proposed survey will be followed up with deeper observations to constrainthe kinematic and ionization properties of the absorbers and ultimately constrain their mass outflow rates. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2009-03-28T19:15:35Z/2009-04-29T00:58:04Z |
| 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 | 2010-05-27T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "XMM", "exploratory sample", "mass outflow rates", "XMM-Newton", "exploratory xmm newton", "bal quasars", "ionization properties", "nal quasars", "uv band", "velocity outflows", "xray brightest objects", "quasar winds", "acceleration mechanism", "xray absorption", "test existing models", "uv properties" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr George Chartas, 2010, 'A SURVEY OF NAL QUASARS WITH HIGH VELOCITY OUTFLOWS', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-gy9xdas |