A dataset provided by the European Space Agency

Proposal ID 076392
Title Probing the nature of the X-ray continuum in the quasar MR 2251-178
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DOI https://doi.org/10.5270/esa-cp46gdt
Principal Investigator, PI Dr Emanuele Nardini
Abstract We propose to carry out a joint XMM-Newton/NuSTAR campaign on the radio-quietquasar MR 2251-178, arranged into four 25-ks observations. The goal is tounderstand the origin of the puzzling curvature in the X-ray continuum by takingadvantage of both the simultaneous, high-quality spectral coverage over morethan two decades in photon energy and the possible changes in the broadbandspectral shape to distinguish among alternative physical models. This willprovide fundamental insights into the emission process in the central regions ofthis X-ray bright quasar, and into the coupling between the illuminatingcontinuum and the photoionized gas across various spatial scales, from thecircumnuclear warm absorber to the 100-kpc wide emitting nebula.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2015-05-18T08:19:14Z/2015-12-12T01:54:45Z
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 2016-12-30T23:00:00Z
Keywords "broadband spectral shape", "NuSTAR", "xray continuum", "photon energy", "spatial scales", "central region", "XMM-Newton", "xray bright quasar", "xmm newton", "wide emitting nebula", "radio quiet quasar", "photoionized gas", "alternative physical models", "fundamental insights", "XMM", "illuminating continuum", "emission process", "quality spectral coverage", "taking advantage", "circumnuclear warm absorber", "nustar campaign", "2251 178"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Emanuele Nardini, 2016, 'Probing the nature of the X-ray continuum in the quasar MR 2251-178', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-cp46gdt