There are four massive quasars discovered at z>5. These sources present apuzzle; how black holes grow to 10^9 solar masses in the limited age of theuniverse. We would like to address this by estimating the population of suchobjects. The population estimation requires good constraints on their jetproperties, in particular, the Doppler factor. We propose to observe thehigh-redshift blazar SDSSJ013127.34-032100.1 with XMM and NuSTAR for 40 ks and100 ks, respectively, in order to model the broadband SED accurately. Thebroadband X-ray observation will allow us to measure the Doppler factor for thesource, constraining the high-a supermassive BH population in the earlyuniverse. These measurements will be used to infer the number of similar BHs at high redshifts.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2019-12-30T06:20:37Z/2019-12-30T20:20:37Z
Version
18.00_20191217_1110
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 HONGJUN AN, 2021, 'CONSTRAINING THE POPULATION OF HIGH-SPIN SUPERMASSIVE BLACK HOLES IN THE EARLY U', 18.00_20191217_1110, European Space Agency, https://doi.org/10.57780/esa-jcry2dd
