A dataset provided by the European Space Agency

Proposal ID 069399
Title X-ray spectroscopy of the first z>7 QSO
Download Data Associated to the proposal

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0693990101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0693990201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0693990301

DOI https://doi.org/10.5270/esa-sfc98w7
Principal Investigator, PI Dr Mathew Page
Abstract We have recently discovered the most distant QSO, ULAS J1120+0641, at z=7.085,just 760 Myr after the big bang. As the first luminous, persistent source to bediscovered at z>7, ULAS J1120 is a unique probe of the intergalactic medium deepin the epoch of reionization, and already constrains the neutral fraction to bemore than 10% at z=7. Its black hole is estimated to be 2.0e9 Msun, and thesmall size of the ionized region in which it is embedded implies it has beenshining for less than 10^7 yrs. Thus it also provides important constraints onthe formation and evolution of massive black holes. We propose to obtain anX-ray spectrum with XMM-Newton to examine the physical conditions in this youngQSO, and to better determine its ionizing spectrum for reionization modelling.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2012-05-23T10:49:06Z/2012-06-21T16:12:42Z
Version 17.56_20190403_1200
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 2013-07-12T00:00:00Z
Last Update 2025-01-27
Keywords "physical conditions", "ulas j1120", "xmm newton", "x ray spectroscopy", "XMM-Newton", "intergalactic medium deep", "massive black holes", "ionizing spectrum", "reionization modelling", "neutral fraction", "0e9 msun", "distant qso", "XMM", "xray spectrum", "persistent source", "ionized region", "760 myr", "embedded implies"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Mathew Page, 2013, 'X-ray spectroscopy of the first z>7 QSO', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-sfc98w7