We propose joint XMM and NuSTAR observations of 12 high-redshift (z > 3)blazars which exhibit brightest and flattest X-ray spectra and host massive(>1e9 Msun) black holes. Joint Xmm and NuSTAR observations will lead tothe most accurate estimation of the beaming factor which will allow us toput stringent constraint on the space density of blazar parent population,and in turn, the evolution of massive black holes in jetted AGNs withinthe first two billion years. Using XMM+NuSTAR data, we will also probethe role played by the intergalactic medium in the X-ray absorption towardshigh-redshift blazars
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2022-07-17T14:47:22Z/2023-04-26T09:51:53Z
Version
20.10_20230417_1156
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.
European Space Agency, Dr Vaidehi S. Paliya, 2024, 'THE QUEST FOR ELUSIVE COSMIC MONSTERS', 20.10_20230417_1156, European Space Agency, https://doi.org/10.57780/esa-k4nutjj
