A dataset provided by the European Space Agency

Name: X-ray Absorption in the Most-Distant RLQs: Widespread or Exceptional?
Published: 2012-05-06T00:00:00Z

Proposal ID	065034
Title	X-ray Absorption in the Most-Distant RLQs: Widespread or Exceptional?
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0650340201
DOI	https://doi.org/10.5270/esa-jq69kyf
Principal Investigator, PI	Prof William Brandt
Abstract	We propose XMM-Newton spectroscopy of five typical radio-loud quasars (RLQs) atz = 3.98-4.97. Our main goal is to search for X-ray absorption to determine ifit is common among RLQs at the highest redshifts, or if instead it is largelyconfined to the exceptional minority of extremely radio-loud objects. Theresults will clarify whether such absorption is a widespread environmentalphenomenon or instead linked with a powerful jet directed almost precisely alongthe line of sight. Our proposed targets are much more representative of theoverall RLQ population than the small number of highly radio-loud blazarsstudied at z ~ 4. We will also measure X-ray continuum shapes and search forvariability and clustered AGNs.
Publications	Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift \|Yershov V. N. \| Ap&SS \| 354-97 \| 2014 \| 2014Ap&SS.354...97Y \| http://ui.adsabs.harvard.edu/#abs/2014Ap&SS.354...97Y Ensemble X-ray variability of active galactic nuclei. II. Excess variance and updated structure function \|Vagnetti F. Middei R. et al. \| A&A \| 593-55 \| 2016 \| 2016A&A...593A..55V \| http://ui.adsabs.harvard.edu/#abs/2016A&A...593A..55V The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch Eric W. \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F AGN spectral states from simultaneous UV and X-ray observations by XMM-Newton \|Svoboda J. Guainazzi M. \| A&A \| 603-127 \| 2017 \| 2017A&A...603A.127S \| http://ui.adsabs.harvard.edu/#abs/2017A&A...603A.127S X-ray properties of z > 4 blazars \|Ighina L. Caccianiga A. et al. \| MNRAS \| 489-2732 \| 2019 \| 2019MNRAS.489.2732I \| http://ui.adsabs.harvard.edu/#abs/2019MNRAS.489.2732I Blazars at the Cosmic Dawn \|Paliya Vaidehi S. Ajello M. et al. \| ApJ \| 897-177 \| 2020 \| 2020ApJ...897..177P \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...897..177P 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 The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII O VIII and Fe L-shell Transitions \|Pan Zeyang Qu Zhijie et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P 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	2011-04-13T06:38:56Z/2011-04-13T22:09:38Z
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	2012-05-06T00:00:00Z
Keywords	"overall rlq population", "xray absorption", "clustered agns", "xmm newton spectroscopy", "widespread environmental phenomenon", "XMM", "distant rlqs", "radio loud blazar", "radio loud objects", "powerful jet directed", "xray continuum shapes", "XMM-Newton", "x ray absorption"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Prof William Brandt, 2012, 'X-ray Absorption in the Most-Distant RLQs: Widespread or Exceptional?', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-jq69kyf