A dataset provided by the European Space Agency

Name: Catching AGN in Deep Minimum States to Unveil Their Core Environment
Published: 2015-12-05T23:00:00Z

Proposal ID	074004
Title	Catching AGN in Deep Minimum States to Unveil Their Core Environment
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0740040101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0740040301
DOI	https://doi.org/10.5270/esa-gv9a9de
Principal Investigator, PI	Dr Norbert Schartel
Abstract	The deep minimum state of AGNs is characterized by a strongly suppressed or evenabsent primary continuum. As the continuum disappears weak spectral featureslike relativistic iron lines or narrow soft X-ray emission lines from ionisedplasmas become highly significant and their parameters can be determined.Therefore deep minimum states offer unique possibilities to investigate indetail the physics of the reprocessed components in AGN, including the immediatevicinity of the supermassive black hole. Applying our experience (several deepminimum observations) we propose 2 triggered 10ks XMM snapshot, one 80ks XMMfollow-up simultaneous with one 80ks NuSTAR observation of an AGN in deepminimum state. We will identify deep minimum states mainly based on Swift and XMM-Newton slew observations.
Publications	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 Swift NuStar and XMM-Newton observations of the NLS1 galaxy RX J2317.8-4422 in an extreme X-ray low flux state \|Grupe Dirk Komossa S. et al. \| MNRAS \| 486-227 \| 2019 \| 2019MNRAS.486..227G \| http://ui.adsabs.harvard.edu/#abs/2019MNRAS.486..227G 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 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	2014-10-29T21:49:55Z/2014-11-18T03:24:40Z
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	2015-12-05T23:00:00Z
Last Update	2025-01-27
Keywords	"deep minimum", "xmm snapshot", "relativistic iron lines", "absent primary continuum", "supermassive black hole", "reprocessed components", "XMM-Newton", "ionised plasmas", "NuSTAR", "XMM", "xmm newton slew", "catching agn"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Norbert Schartel, 2015, 'Catching AGN in Deep Minimum States to Unveil Their Core Environment', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-gv9a9de