| Name | 065034 |
| Title | X-ray Absorption in the Most-Distant RLQs: Widespread or Exceptional? |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0650340201 |
| DOI | https://doi.org/10.5270/esa-jq69kyf |
| Author | European Space Agency |
| Description | We propose XMM-Newton spectroscopy of five typical radio-loud quasars (RLQs) at z = 3.98-4.97. Our main goal is to search for X-ray absorption to determine if it is common among RLQs at the highest redshifts, or if instead it is largely confined to the exceptional minority of extremely radio-loud objects. The results will clarify whether such absorption is a widespread environmental phenomenon or instead linked with a powerful jet directed almost precisely along the line of sight. Our proposed targets are much more representative of the overall RLQ population than the small number of highly radio-loud blazars studied at z virgul 4. We will also measure X-ray continuum shapes and search for variability and clustered AGNs. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2011-04-13T06:38:56Z/2011-04-13T22:09:38Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 | 2012-05-06T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2012, X-Ray Absorption In The Most-Distant Rlqs: Widespread Or Exceptionalquestionmark, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-jq69kyf |