A dataset provided by the European Space Agency

Name 084402
Title Unveiling the nuclear properties of the most luminous quasar in the Universe


DOI https://doi.org/10.5270/esa-wet6m21
Author Dr Luca Zappacosta
Description Hyperluminous (>10^47 erg-s) and overmassive (>>10^9 Msun) quasars at z>virgul4.5-5 provide invaluable testbeds for supermassive black-hole (SMBH) formation models. Currently only three broad-line radio-quiet quasars are known with bolometric luminosities Lbol >1e+48 erg-s. Two of them have measured masses larger than 10-billions Msun. The most luminous of them is the only one lacking (i) X-ray observations and (ii) a measure of the SMBH mass (M_SMBH). We propose here joint XMM-Newton and VLT-X-SHOOTER observations of this quasar in order to shed light on its nuclear X-ray properties, obtain a reliable measure of M_SMBH and estimate its radiative output in terms of the Eddington luminosity.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2019-10-24T16:49:37Z/2019-10-25T14:38:01Z
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 2020-12-02T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2020, 084402, 17.56_20190403_1200. https://doi.org/10.5270/esa-wet6m21