| Name | 010306 |
| Title | X-ray observations of high-redshift quasars |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0103060101 |
| DOI | https://doi.org/10.5270/esa-g2m9t36 |
| Author | Dr Bernd Aschenbach |
| Description | GT-This study aims at a detailed spectral comparison of high-z radio-loud and radio-quiet quasars. The data can provide new insights in quasar formation processes, the evolution and the enigmatic radio-loud/quiet dichotomy. In particular the following questions can be addressed: Do spectral differences between radio-loud and radio-quiet quasars persist to high redshifts? Do radio quiet quasars show intrinsic absorption similar to radio-loud quasars, and do they show spectral evolution? High redshift quasars further serve as back- ground sources to study intervening systems like the intergalactic medium and damped Ly-alpha systems. Is is important to note that XMM provides the last possibility for the foreseeable future to study the X-ray spectra of RQQs. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2001-05-01T03:21:11Z/2002-08-01T20:11:05Z |
| 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 | 2003-09-11T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Bernd Aschenbach, 2003, 010306, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-g2m9t36 |