A dataset provided by the European Space Agency

Name 076491
Title XMM Observations of NuSTAR-observed Heavily Obscured Quasars at z < 0.5


DOI https://doi.org/10.5270/esa-vwg5tri
Author Mr George Lansbury
Description Heavily obscured, candidate Compton-thick QSO2s (CTQSO2s) are an extremely challenging class of objects to study at X-ray wavelengths. Five optically selected CTQSO2 candidates have been detected with NuSTAR but, at present, only two of these have sufficient broad-band (0.5-24 keV) X-ray data for reliable spectral modelling, which in each case results in the identification of Compton-thick material. We propose 60 ks XMM-Newton observations of two more objects that would double the number of NuSTAR-detected CTQSO2 candidates with high quality spectral modelling. The proposed XMM-Newton observations have the power to distinguish between Compton-thick and Compton-thin absorption, thus improving our understanding of the Nh distribution of QSO2s.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2015-10-23T18:12:34Z/2015-10-24T11:42:34Z
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 2016-11-12T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2016-11-12T23:00:00Z, 076491, 17.56_20190403_1200. https://doi.org/10.5270/esa-vwg5tri