| Proposal ID | 014767 |
| Title | Quasar absorption studies |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0147670201 |
| DOI | https://doi.org/10.5270/esa-zndh5ll |
| Principal Investigator, PI | Prof Fabrizio Fiore |
| Abstract | We propose to exploit the unprecedent troughtput of XMM-Newton toperform a systematic study of a sample of quasars in which previousless sensitive observations found evidences for X-ray absorption. The main goals are: 1- measure redshift and column density of the X-rayabsorbers; 2- assess whether absorption at the quasar redshift occurspreferentially in radio-loud objects; 3- test the correlation betweenabsortion and redshift suggested by ROSAT and ASCA data; 4- constrainthe absorber ionization status and metallicity; 5- constrain theabsorber dust content and composition through the comparison betweenthe amount of X-ray absorption and optical dust extinction. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-01-31T14:00:37Z/2003-10-16T11:07:38Z |
| 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 | 2004-11-01T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "absorber dust content", "redshift suggested", "xray absorbers", "xmm newton", "xray absorption", "asca data", "optical dust extinction", "XMM-Newton", "absorber ionization status", "ROSAT", "column density", "radio loud objects", "XMM", "unprecedent troughtput", "quasar absorption" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Fabrizio Fiore, 2004, 'Quasar absorption studies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-zndh5ll |