A dataset provided by the European Space Agency

Name: XMM Observations of NuSTAR-observed Heavily Obscured Quasars at z < 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 Xu2011HESS: A large sample of highly accreting serendipitous AGN under the XMMu2011Newton 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 Investigating the nuclear properties of highly accreting active galactic nuclei with XMM-Newton \|Laurenti M. Tombesi F. et al. \| A&A \| 689-A337 \| 2024 \| 2024A&A...689A.337L \| http://ui.adsabs.harvard.edu/#abs/2024A&A...689A.337L Search for Young Stellar Objects within 4XMM-DR13 Using CatBoost and SPE \|Ma Xiangyao Zhang Yanxia et al. \| AJ \| 168-210 \| 2024 \| 2024AJ....168..210M \| http://ui.adsabs.harvard.edu/#abs/2024AJ....168..210M New 511 keV Line Data Provide Strongest sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 973-L6 \| 2024 \| 2024ApJ...973L...6D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...973L...6D
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
Last Update	2025-08-04
Keywords	"XMM", "ctqso2 candidates", "XMM-Newton", "NuSTAR", "reliable spectral modelling", "heavily obscured quasars", "kev xray data", "compton thick material", "xmm newton", "broad band", "nh distribution", "heavily obscured", "xray wavelengths", "compton thick", "compton thin absorption", "quality spectral modelling"
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