A dataset provided by the European Space Agency

Name: XMM Observations of NuSTAR-observed Heavily Obscured Quasars at z &lt; 0.5
Published: 2016-11-12T23:00:00Z

Proposal ID	076491
Title	XMM Observations of NuSTAR-observed Heavily Obscured Quasars at z < 0.5
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0764910201
DOI	https://doi.org/10.5270/esa-vwg5tri
Principal Investigator, PI	Mr George Lansbury
Abstract	Heavily obscured, candidate Compton-thick QSO2s (CTQSO2s) are an extremelychallenging class of objects to study at X-ray wavelengths. Five opticallyselected CTQSO2 candidates have been detected with NuSTAR but, at present, onlytwo of these have sufficient broad-band (0.5-24 keV) X-ray data for reliablespectral modelling, which in each case results in the identification ofCompton-thick material. We propose 60 ks XMM-Newton observations of two moreobjects that would double the number of NuSTAR-detected CTQSO2 candidates withhigh quality spectral modelling. The proposed XMM-Newton observations have thepower to distinguish between Compton-thick and Compton-thin absorption, thusimproving our understanding of the Nh distribution of QSO2s.
Publications	The NuSTAR Extragalactic Surveys: X-Ray Spectroscopic Analysis of the Bright Hard-band Selected Sample \|Zappacosta, L., Comastri, A., et al. \| ApJ \| 854-33 \| 2018 \| 2018ApJ...854...33Z \| http://ui.adsabs.harvard.edu/#abs/2018ApJ...854...33Z The composite X-ray spectra of radio-loud and radio-quiet SDSS quasars \|Zhou, Min-Hua, Gu, Min-Feng, \| RAA \| 21-4 \| 2021 \| 2021RAA....21....4Z \| http://ui.adsabs.harvard.edu/#abs/2021RAA....21....4Z Classification of 4XMM-DR9 sources by machine learning \|Zhang, Yanxia, Zhao, Yongheng, \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z X\\u2011HESS: A large sample of highly accreting serendipitous AGN under the XMM\\u2011Newton microscope \|Laurenti, M., Tombesi, F., et al. \| AN \| 344-20230053 \| 2023 \| 2023AN....34430053L \| http://ui.adsabs.harvard.edu/#abs/2023AN....34430053L From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez, Antonio C., \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R Robust constraints on feebly interacting particles using XMM-Newton \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque, Pedro, Balaji, Shyam, \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
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 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	2016-11-12T23:00:00Z
Keywords	"NuSTAR", "heavily obscured", "heavily obscured quasars", "reliable spectral modelling", "XMM", "xray wavelengths", "compton thin absorption", "nh distribution", "kev xray data", "ctqso2 candidates", "broad band", "quality spectral modelling", "compton thick", "compton thick material", "XMM-Newton", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Mr George Lansbury, 2016, 'XMM Observations of NuSTAR-observed Heavily Obscured Quasars at z < 0.5', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-vwg5tri