A dataset provided by the European Space Agency

Name: Variable Compton-thin Absorption in the Seyfert 2 NGC 526a
Published: 2015-01-20T23:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	072173
Title	Variable Compton-thin Absorption in the Seyfert 2 NGC 526a
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721730301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721730401
DOI	https://doi.org/10.5270/esa-yn1hj6o
Principal Investigator, PI	Dr Alex Markowitz
Abstract	We request two new XMM-Newton observations of the X-ray bright Compton-thin Sy 2NGC 526a, each 40 ksec in duration, with one in each visibility window duringAO12. We will compare the newly-obtained spectra with archival spectra for thisobject obtained with XMM-Newton and other missions; this will allow us toquantify the variability in the parameters of the partial- and full-coveringneutral components over timescales of both years and months. The results willyield observational constraints for new, clumpy-absorber models.
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 X-ray variability of Seyfert 1.8/1.9 galaxies \|Hernandez-Garcia L. Masegosa J. et al. \| A&A \| 602-65 \| 2017 \| 2017A&A...602A..65H \| http://ui.adsabs.harvard.edu/#abs/2017A&A...602A..65H 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 The Variable and Non-variable X-Ray Absorbers in Compton-thin Type II Active Galactic Nuclei \|Laha Sibasish Markowitz Alex G. et al. \| ApJ \| 897-66 \| 2020 \| 2020ApJ...897...66L \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...897...66L 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 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	2013-12-21T11:06:11Z/2013-12-23T03:51:36Z
Version	21.51_20241115_1113
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	2015-01-20T23:00:00Z
Last Update	2026-07-09
Keywords	"XMM-Newton", "neutral components", "NGC 526", "clumpy absorber models", "ngc 526a", "XMM", "visibility window", "xmm newton", "archival spectra"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Alex Markowitz, 2015, 'Variable Compton-thin Absorption in the Seyfert 2 NGC 526a', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-yn1hj6o
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.