| Name | 076437 |
| Title | Measuring coronal properties of a high redshift, luminous quasar |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0764370201 |
| DOI | https://doi.org/10.5270/esa-57rifwn |
| Author | Dr Guido Risaliti |
| Description | We propose XMM and NuSTAR joint observations of a z=1.77 quasar, with the goal of measuring its high-energy cutoff and hence, its coronal temperature and optical depth. Only recently high S-N spectra allowed precise measurements of these parameters for the brightest local AGN, finding cutoff energies above 100virgulkeV. Here we demonstrate that the same estimates are possible for the brightest high-z quasars, if both XMM and NuSTAR are employed. The scientific outcome is of great value: we will test whether the same physical conditions hold in quasars at luminosities three orders of magnitude higher than those probed so far in the nearby Universe. An important additional goal will be the study of the X-ray absorption, both at the source rest frame and in the intervening intergalactic medium. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2015-11-06T13:50:11Z/2015-11-07T13:43:31Z |
| 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 | 2016-11-30T23:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2016-11-30T23:00:00Z, 076437, 17.56_20190403_1200. https://doi.org/10.5270/esa-57rifwn |