A dataset provided by the European Space Agency

Name: Probing AGN Variability on 10-100 kyr Timescales
Published: 2013-03-27T00:00:00Z

Proposal ID	067266
Title	Probing AGN Variability on 10-100 kyr Timescales
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0672660401 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0672660501
DOI	https://doi.org/10.5270/esa-xgznjli
Principal Investigator, PI	Dr Kevin Schawinski
Abstract	Following the discovery of IC 2497 and Hannys Voorwerp, the citizen scientiststaking part in the Galaxy Zoo project have identified a sample of low-redshiftgalaxies with extended AGN-photoionized clouds indicative of a Seyfert-luminosity AGN. We select a sample of 7 such galaxies where the lack of infraredemission makes it plausible that the AGN phase illuminating the cloud has shutdown within the light travel time to the cloud. We propose to use XMM-Newton toobserve these objects, as in IC 2497, to test whether these AGN have indeed shutdown and thus providing a measurement of significant AGN variability onpreviously inaccessible timescales.
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 A Tale of Two Narrow-line Regions: Ionization Kinematics and Spectral Energy Distributions for a Local Pair of Merging Obscured Active Galaxies \|Hainline Kevin N. Hickox Ryan C. et al. \| ApJ \| 823-42 \| 2016 \| 2016ApJ...823...42H \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...823...42H 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 The close environments of accreting massive black holes are shaped by radiative feedback \|Ricci Claudio Trakhtenbrot Benny et al. \| Natur \| 549-488 \| 2017 \| 2017Natur.549..488R \| http://ui.adsabs.harvard.edu/#abs/2017Natur.549..488R BAT AGN Spectroscopic Survey (BASS) - VI. The GammaX-L/LEdd relation \|Trakhtenbrot Benny Ricci Claudio et al. \| MNRAS \| 470-800 \| 2017 \| 2017MNRAS.470..800T \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.470..800T BAT AGN Spectroscopic Survey. V. X-Ray Properties of the Swift/BAT 70-month AGN Catalog \|Ricci C. Trakhtenbrot B. et al. \| ApJS \| 233-17 \| 2017 \| 2017ApJS..233...17R \| http://ui.adsabs.harvard.edu/#abs/2017ApJS..233...17R The Swift/BAT AGN Spectroscopic Survey. IX. The Clustering Environments of an Unbiased Sample of Local AGNs \|Powell M. C. Cappelluti N. et al. \| ApJ \| 858-110 \| 2018 \| 2018ApJ...858..110P \| http://ui.adsabs.harvard.edu/#abs/2018ApJ...858..110P Hot corona properties of Swift/BAT-detected AGNs \|Wang Chan Yu Li-Ming et al. \| MNRAS \| 487-2463 \| 2019 \| 2019MNRAS.487.2463W \| http://ui.adsabs.harvard.edu/#abs/2019MNRAS.487.2463W 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	2012-03-02T09:59:47Z/2012-03-02T19:01:02Z
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	2013-03-27T00:00:00Z
Last Update	2025-01-27
Keywords	"seyfert luminosity agn", "galaxy zoo project", "agn phase illuminating", "probing agn variability", "low redshift galaxy", "light travel time", "xmm newton", "agn variability", "XMM-Newton", "inaccessible timescales", "indeed shut", "infrared emission makes", "XMM", "kyr timescales", "ic 2497"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Kevin Schawinski, 2013, 'Probing AGN Variability on 10-100 kyr Timescales', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-xgznjli