| Proposal ID | 020210 |
| Title | QSO2 CANDIDATES FROM THE ROSAT NEP SURVEY |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0202100101 |
| DOI | https://doi.org/10.5270/esa-sj9wed2 |
| Principal Investigator, PI | Dr ANNA WOLTER |
| Abstract | We propose to obtain XMM-Newton spectra for the only three QSO2 candidates foundin the completely identified ROSAT North Ecliptic Pole survey. These objectsshow optical narrow high-ionization lines and very high X-ray luminosities.Obscured QSO2 are a key ingredient in models of the diffuse X-ray background,but they are not found in large number as expected. The spectra that we proposeto obtain will confirm the classification as obscured QSO2 if we detectabsorption also in the X-ray band. It will be possible to probe the internalstructure of the emitting region, and detect the presence of absorbing orreflecting material. The complete identification status of the survey will allowus for the first time to compute QSO2 spatial density in the soft X-ray sky. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-03-11T19:00:19Z/2004-06-27T21:59:25Z |
| 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 | 2005-07-27T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "optical narrow", "qso2 candidates", "xmm newton spectra", "emitting region", "diffuse xray background", "obscured qso2", "complete identification status", "key ingredient", "xray band", "XMM-Newton", "ionization lines", "ROSAT", "xray luminosities", "reflecting material", "internal structure", "XMM", "soft xray sky", "rosat nep survey" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr ANNA WOLTER, 2005, 'QSO2 CANDIDATES FROM THE ROSAT NEP SURVEY', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-sj9wed2 |