| Proposal ID | 050462 |
| Title | Quasars Outflows: Testing the Paradigm with mini-BALs |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0504620301 |
| DOI | https://doi.org/10.5270/esa-v3ivlcr |
| Principal Investigator, PI | Prof Frederick Hamann |
| Abstract | High velocity outflows are ubiquitous in quasars and an important part of SMBHevolution. They might even be necessary to carry away angular momentum andfacilitate disk accretion. Studies of broad absorption line (BAL) quasars haverevealed large X-ray absorbing columns and some tentative UV-X-ray correlationsconsistent with radiative acceleration in accretion disk winds. But BALs areonly part of the story - sampling a narrow range of flow types or viewingangles. We propose XMM observations of quasars with high-velocity mini-BALs andweak/borderline BALs to extend the range of measured outflow parameters, testthe BAL correlations/physical models, and solidify constraints on the globalwind geometry, orientation, acceleration, mass loss rates, launch radii, etc. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2007-05-06T16:58:46Z/2007-11-04T09:51:09Z |
| 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 | 2008-11-28T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "global wind geometry", "bal correlations", "narrow range", "mini bals", "angular momentum", "facilitate disk accretion", "XMM", "outflow parameters", "mass loss rates", "smbh evolution", "radiative acceleration", "launch radii", "velocity mini bals", "borderline bals", "story sampling", "solidify constraints", "xray absorbing columns", "accretion disk winds", "physical models", "velocity outflows", "quasars outflows", "flow types" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Frederick Hamann, 2008, 'Quasars Outflows: Testing the Paradigm with mini-BALs', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-v3ivlcr |