| Proposal ID | 076173 |
| Title | X-ray properties of z~1.5 active black holes with very high and very low spin |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0761730301 |
| DOI | https://doi.org/10.5270/esa-hoh5euw |
| Principal Investigator, PI | Prof Hagai Netzer |
| Abstract | We propose to observe the 1-25 keV (rest-frame) SED of 6 active galactic nucleifrom a unique z~1.55 VLT/X-shooter sample. Our soon-to-be published observationsof the sources show that their 1200-9800A rest-frame SED can be fitted,accurately, by thin accretion disk spectra, which allows us to measure the BHspin parameter, a*, in this sample. This XMM proposal is a pilot study aimed atthe understanding of the X-ray properties of two sub-groups of this sample: fourobjects with the largest spin (a* = 0.998) and four with the lowest spin (a* <0.3). The data will be used to look for high and low spin indicators in theX-ray SED of luminous AGNs, in particular the 2-10 keV slope, alpha-OX and,perhaps, by stacking analysis, some information on K-alpha. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2015-07-01T02:50:20Z/2015-11-26T02:27:32Z |
| Version | PPS_NOT_AVAILABLE |
| 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 | 2016-12-14T23:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "stacking analysis", "lowest spin", "bh spin parameter", "x shooter sample", "largest spin", "x ray properties", "low spin indicators", "kev slope", "alpha ox", "low spin", "xray properties", "luminous agns", "active blackhole", "XMM", "xray sed", "active galactic nuclei" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Hagai Netzer, 2016, 'X-ray properties of z~1.5 active black holes with very high and very low spin', PPS_NOT_AVAILABLE, European Space Agency, https://doi.org/10.5270/esa-hoh5euw |