A dataset provided by the European Space Agency

Name: Variable absorption in BAL QSOs: catching the origin of AGN winds
Published: 2016-06-30T22:00:00Z

Proposal ID	072818
Title	Variable absorption in BAL QSOs: catching the origin of AGN winds
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0728180201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0728180301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0728180401 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0728180501
DOI	https://doi.org/10.5270/esa-14ne1qk
Principal Investigator, PI	Dr Margherita Giustini
Abstract	We want to investigate the nature of the gas located in the central regions ofQSOs. Hence, we propose to observe a small sample of four BAL QSOs, among theX-ray brightest in the Palomar Green sample. Our goal is to monitor thevariability of their absorption properties to study the physics of the wind seenin BAL QSOs along the line of sight. As such, timescales of days and years mustbe investigated to probe distances between tens to thousands gravitational radiifrom the central SMBH. To this end, each source must have been observed at leastthree times by XMM-Newton (in at least 2 close pointings for the intra-dayvariability plus a distant one for the intra-year variability). We thus requestthat XMM-Newton re-observes some BAL QSOs for a total of 240 ks.
Publications	Unveiling the X-ray/UV properties of disk winds in active galactic nuclei using broad and mini-broad absorption line quasars \|Giustini, M., \| AN \| 337-459 \| 2016 \| 2016AN....337..459G \| http://ui.adsabs.harvard.edu/#abs/2016AN....337..459G 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 An X-ray view of central engines of low-luminosity quasars (LLQSO) in the local Universe \|Laha, Sibasish, Ghosh, Ritesh, et al. \| MNRAS \| 480-1522 \| 2018 \| 2018MNRAS.480.1522L \| http://ui.adsabs.harvard.edu/#abs/2018MNRAS.480.1522L 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 Coordinated X-ray and UV absorption within the accretion disk wind of the active galactic nucleus PG 1126-041 \|Giustini, M., Rodr\\u00edguez Hidalgo, P., et al. \| A&A \| 679-73 \| 2023 \| 2023A&A...679A..73G \| http://ui.adsabs.harvard.edu/#abs/2023A&A...679A..73G 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	2014-06-01T06:07:18Z/2015-06-14T12:04:49Z
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	2016-06-30T22:00:00Z
Keywords	"close pointings", "central smbh", "agn winds", "xray brightest", "XMM", "variable absorption", "gas located", "central region", "thousands gravitational radii", "variability plus", "XMM-Newton", "palomar green sample", "absorption properties", "probe distances", "bal qsos", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Margherita Giustini, 2016, 'Variable absorption in BAL QSOs: catching the origin of AGN winds', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-14ne1qk