A dataset provided by the European Space Agency

Name: NGC 7582: A SEYFERT 2 ANALOGY OF NARROW-LINE SEYFERT 1.SquestionMark
Published: 2006-06-23T00:00:00Z

Proposal ID	020461
Title	NGC 7582: A SEYFERT 2 ANALOGY OF NARROW-LINE SEYFERT 1.S?
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204610101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204610201
DOI	https://doi.org/10.5270/esa-9ho1l17
Principal Investigator, PI	Dr NICHOLAS SCHURCH
Abstract	We propose a 100 ks XMM observation of the bright, rapidly variable Seyfert 2galaxy; NGC 7582. The primary aim of the observation is to measure the X-rayvariability properties of this Seyfert 2 and to use this to confirm thesimilarities between NGC 7582 and the narrow-line Seyfert 1 class of AGN(NLS1s). Many of the intrinsic properties of NLS1s are exhibited by NGC 7582,however the link is far from certain. The proposed observation will measure theshort time scale power spectral density (PSD) of the X-ray variability in NGC7582, a break in which will result in the first estimate of the mass of thecentral black hole in NGC 7582 and confirm the link with NLS1s. This observationwill also result in the first high resolution soft X-ray spectrum of NGC 7582.
Publications	XMM-Newton broad-band observations of NGC 7582: N{H} variations and fading out of the active nucleus \|Piconcelli, E., Bianchi, S., et al. \| A&A \| 466-855 \| 2007 \| 2007A&A...466..855P \| http://ui.adsabs.harvard.edu/#abs/2007A&A...466..855P XMM-Newton Observations of the Seyfert 2 Galaxy NGC 7590: The Nature of X-ray Absorption \|Shu, X. W., Liu, T., \| ApJ \| 722-96 \| 2010 \| 2010ApJ...722...96S \| http://ui.adsabs.harvard.edu/#abs/2010ApJ...722...96S The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue \|Watson, M. G., Schroder, A. C., et al. \| A&A \| 493-339 \| 2009 \| 2009A&A...493..339W \| http://ui.adsabs.harvard.edu/#abs/2009A&A...493..339W Statistical evaluation of the flux cross-calibration of the XMM-Newton EPIC cameras \|Mateos, S., Saxton, R. D., et al. \| A&A \| 496-879 \| 2009 \| 2009A&A...496..879M \| http://ui.adsabs.harvard.edu/#abs/2009A&A...496..879M X-ray colour-colour selection for heavily absorbed active galactic nuclei \|Brightman, Murray, Nandra, Kirpal, \| MNRAS \| 422-1166 \| 2012 \| 2012MNRAS.422.1166B \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.422.1166B The XMM Cluster Survey: optical analysis methodology and the first data release \|Mehrtens, Nicola, Romer, A. Kathy, et al. \| MNRAS \| 423-1024 \| 2012 \| 2012MNRAS.423.1024M \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.1024M Evidence for ultra-fast outflows in radio-quiet AGNs. I. Detection and statistical incidence of Fe K-shell absorption lines \|Tombesi, F., Cappi, M., et al. \| A&A \| 521-57 \| 2010 \| 2010A&A...521A..57T \| http://ui.adsabs.harvard.edu/#abs/2010A&A...521A..57T The Difference in Narrow Fe Kalpha Line Emission Between Seyfert 1 and Seyfert 2 Galaxies \|Liu, Teng, Wang, Jun-Xian, \| ApJ \| 725-2381 \| 2010 \| 2010ApJ...725.2381L \| http://ui.adsabs.harvard.edu/#abs/2010ApJ...725.2381L 2XMM ultraluminous X-ray source candidates in nearby galaxies \|Walton, D. J., Roberts, T. P., et al. \| MNRAS \| 416-1844 \| 2011 \| 2011MNRAS.416.1844W \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.416.1844W Uncovering Obscured Active Galactic Nuclei in Homogeneously Selected Samples of Seyfert 2 Galaxies \|LaMassa, Stephanie M., Heckman, T. M., et al. \| ApJ \| 729-52 \| 2011 \| 2011ApJ...729...52L \| http://ui.adsabs.harvard.edu/#abs/2011ApJ...729...52L A large catalogue of ultraluminous X-ray source candidates in nearby galaxies \|Walton, D. J., Gladstone, J. C., et al. \| AN \| 332-354 \| 2011 \| 2011AN....332..354W \| http://ui.adsabs.harvard.edu/#abs/2011AN....332..354W An XMM-Newton spectral survey of 12 mum selected galaxies - I. X-ray data \|Brightman, Murray, Nandra, Kirpal, \| MNRAS \| 413-1206 \| 2011 \| 2011MNRAS.413.1206B \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.413.1206B An All-Sky Atlas of Radio/X-ray Associations \|Flesch, E., \| PASA \| 27-283 \| 2010 \| 2010PASA...27..283F \| http://ui.adsabs.harvard.edu/#abs/2010PASA...27..283F Fe Kalpha line profile in AGNs: average shape and redshift dependence \|Mao, Wei-Ming, Hu, Chen, et al. \| RAA \| 10-905 \| 2010 \| 2010RAA....10..905M \| http://ui.adsabs.harvard.edu/#abs/2010RAA....10..905M An XMM-Newton spectral survey of 12 mum selected galaxies - II. Implications for AGN selection and unification \|Brightman, Murray, Nandra, Kirpal, \| MNRAS \| 414-3084 \| 2011 \| 2011MNRAS.414.3084B \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.414.3084B A new technique to efficiently select Compton-thick AGN \|Severgnini, P., Caccianiga, A., \| A&A \| 542-46 \| 2012 \| 2012A&A...542A..46S \| http://ui.adsabs.harvard.edu/#abs/2012A&A...542A..46S The XMM Cluster Survey: X-ray analysis methodology \|Lloyd-Davies, E. J., Romer, A. Kathy, et al. \| MNRAS \| 418-14 \| 2011 \| 2011MNRAS.418...14L \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.418...14L Exospheric solar wind charge exchange as seen by XMM-Newton \|Carter, J. A., Semba, S., \| AN \| 333-313 \| 2012 \| 2012AN....333..313C \| http://ui.adsabs.harvard.edu/#abs/2012AN....333..313C The cosmological analysis of X-ray cluster surveys - II. Application of the CR-HR method to the XMM archive \|Clerc, N., Sadibekova, T., et al. \| MNRAS \| 423-3561 \| 2012 \| 2012MNRAS.423.3561C \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.3561C X-ray variability of 104 active galactic nuclei. XMM-Newton power-spectrum density profiles \|Gonzalez-Martin, O., Vaughan, S., \| A&A \| 544-80 \| 2012 \| 2012A&A...544A..80G \| http://ui.adsabs.harvard.edu/#abs/2012A&A...544A..80G Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog \|Lin, Dacheng, Webb, Natalie A., \| ApJ \| 756-27 \| 2012 \| 2012ApJ...756...27L \| http://ui.adsabs.harvard.edu/#abs/2012ApJ...756...27L The X-ray nature of the nucleus in Seyfert 2 galaxy NGC 7590 \|Shu, Xin-Wen, Wang, Jun-Xian, et al. \| RAA \| 12-1247 \| 2012 \| 2012RAA....12.1247S \| http://ui.adsabs.harvard.edu/#abs/2012RAA....12.1247S Disentangling AGN and Star Formation in Soft X-Rays \|LaMassa, Stephanie M., Heckman, T. M., \| ApJ \| 758-82 \| 2012 \| 2012ApJ...758...82L \| http://ui.adsabs.harvard.edu/#abs/2012ApJ...758...82L An XMM-Newton Survey of the Soft X-Ray Background. II. An All-Sky Catalog of Diffuse O VII and O VIII Emission Intensities \|Henley, David B., Shelton, Robin L., \| ApJS \| 202-14 \| 2012 \| 2012ApJS..202...14H \| http://ui.adsabs.harvard.edu/#abs/2012ApJS..202...14H The XMM-Newton serendipitous ultraviolet source survey catalogue \|Page, M. J., Brindle, C., et al. \| MNRAS \| 426-903 \| 2012 \| 2012MNRAS.426..903P \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.426..903P Properties of the integrated spectrum of serendipitous 2XMM catalog sources \|Chaudhary, P., Brusa, M., et al. \| A&A \| 518-58 \| 2010 \| 2010A&A...518A..58C \| http://ui.adsabs.harvard.edu/#abs/2010A&A...518A..58C Rest-frame stacking of 2XMM catalog sources. Properties of the Fe Kalpha line \|Chaudhary, P., Brusa, M., et al. \| A&A \| 537-6 \| 2012 \| 2012A&A...537A...6C \| http://ui.adsabs.harvard.edu/#abs/2012A&A...537A...6C A systematic cross-search for radio/infrared counterparts of XMM- Newton sources \|Combi, J. A., Albacete Colombo, J. F., et al. \| Ap&SS \| 331-53 \| 2011 \| 2011Ap&SS.331...53C \| http://ui.adsabs.harvard.edu/#abs/2011Ap&SS.331...53C High spectral resolution X-ray observations of AGN \|Kaastra, J. S., \| AN \| 329-162 \| 2008 \| 2008AN....329..162K \| http://ui.adsabs.harvard.edu/#abs/2008AN....329..162K Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog: Objects of Special Interest \|Lin, Dacheng, Webb, Natalie A., \| ApJ \| 780-39 \| 2014 \| 2014ApJ...780...39L \| http://ui.adsabs.harvard.edu/#abs/2014ApJ...780...39L Automatic Classification of Time-variable X-Ray Sources \|Lo, Kitty K., Farrell, Sean, et al. \| ApJ \| 786-20 \| 2014 \| 2014ApJ...786...20L \| http://ui.adsabs.harvard.edu/#abs/2014ApJ...786...20L The diversity of quasars unified by accretion and orientation \|Shen, Yue, Ho, Luis C., \| Natur \| 513-210 \| 2014 \| 2014Natur.513..210S \| http://ui.adsabs.harvard.edu/#abs/2014Natur.513..210S Search for X-ray occultations in active galactic nuclei \|Torricelli-Ciamponi, G., Pietrini, P., et al. \| MNRAS \| 442-2116 \| 2014 \| 2014MNRAS.442.2116T \| http://ui.adsabs.harvard.edu/#abs/2014MNRAS.442.2116T 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 Sunyaev-Zel.dovich effect or not? Detecting the main foreground effect of most galaxy clusters \|Xiao, Weike, Chen, Chen, et al. \| MNRAS \| 432-41 \| 2013 \| 2013MNRAS.432L..41X \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.432L..41X Non-detection of X-ray emission from sterile neutrinos in stacked galaxy spectra \|Anderson, Michael E., Churazov, Eugene, \| MNRAS \| 452-3905 \| 2015 \| 2015MNRAS.452.3905A \| http://ui.adsabs.harvard.edu/#abs/2015MNRAS.452.3905A X-ray spectral parameters for a sample of 95 active galactic nuclei \|Vasylenko, A. A., Zhdanov, V. I., \| Ap&SS \| 360-71 \| 2015 \| 2015Ap&SS.360...71V \| http://ui.adsabs.harvard.edu/#abs/2015Ap&SS.360...71V Compton-thick Accretion in the Local Universe \|Ricci, C., Ueda, Y., et al. \| ApJ \| 815-13 \| 2015 \| 2015ApJ...815L..13R \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...815L..13R The Interaction of the Fermi Bubbles with the Milky Way.s Hot Gas Halo \|Miller, Matthew J., Bregman, Joel N., \| ApJ \| 829-9 \| 2016 \| 2016ApJ...829....9M \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...829....9M SPIDERS: the spectroscopic follow-up of X-ray selected clusters of galaxies in SDSS-IV \|Clerc, N., Merloni, A., et al. \| MNRAS \| 463-4490 \| 2016 \| 2016MNRAS.463.4490C \| http://ui.adsabs.harvard.edu/#abs/2016MNRAS.463.4490C 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 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 Anisotropy of the galaxy cluster X-ray luminosity-temperature relation \|Migkas, Konstantinos, Reiprich, Thomas H., \| A&A \| 611-50 \| 2018 \| 2018A&A...611A..50M \| http://ui.adsabs.harvard.edu/#abs/2018A&A...611A..50M The Near-infrared CO Absorption Band as a Probe to the Innermost Part of an AGN-obscuring Material \|Baba, Shunsuke, Nakagawa, Takao, et al. \| ApJ \| 852-83 \| 2018 \| 2018ApJ...852...83B \| http://ui.adsabs.harvard.edu/#abs/2018ApJ...852...83B 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 The XMM Cluster Survey: Present status and latest results \|Viana, P. T. P., Mehrtens, N., et al. \| AN \| 334-462 \| 2013 \| 2013AN....334..462V \| http://ui.adsabs.harvard.edu/#abs/2013AN....334..462V A new, clean catalogue of extragalactic non-nuclear X-ray sources in nearby galaxies \|Earnshaw, H. P., Roberts, T. P., et al. \| MNRAS \| 483-5554 \| 2019 \| 2019MNRAS.483.5554E \| http://ui.adsabs.harvard.edu/#abs/2019MNRAS.483.5554E Broad-band X-ray analysis of local mid-infrared-selected Compton-thick AGN candidates \|La Caria, M.-M., Vignali, C., et al. \| MNRAS \| 487-1662 \| 2019 \| 2019MNRAS.487.1662L \| http://ui.adsabs.harvard.edu/#abs/2019MNRAS.487.1662L X-ray occultations in active galactic nuclei: distribution in size of orbiting clouds and total mass content in the cloud ensemble \|Pietrini, P., Torricelli-Ciamponi, G., \| A&A \| 628-26 \| 2019 \| 2019A&A...628A..26P \| http://ui.adsabs.harvard.edu/#abs/2019A&A...628A..26P Testing emergent gravity on galaxy cluster scales \|Tamosiunas, Andrius, Bacon, David, et al. \| JCAP \| 5-53 \| 2019 \| 2019JCAP...05..053T \| http://ui.adsabs.harvard.edu/#abs/2019JCAP...05..053T 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 Water masers in Compton-thick AGN. II. The high detection rate and EVN observations of ASTROBJIRAS 15480-0344ASTROBJ_CLOSE \|Castangia, P., Surcis, G., et al. \| A&A \| 629-25 \| 2019 \| 2019A&A...629A..25C \| http://ui.adsabs.harvard.edu/#abs/2019A&A...629A..25C Chandra Follow-up of the SDSS DR8 Redmapper Catalog Using the MATCha Pipeline \|Hollowood, Devon L., Jeltema, Tesla, et al. \| ApJS \| 244-22 \| 2019 \| 2019ApJS..244...22H \| http://ui.adsabs.harvard.edu/#abs/2019ApJS..244...22H Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters \|Palmese, A., Annis, J., et al. \| MNRAS \| 493-4591 \| 2020 \| 2020MNRAS.493.4591P \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.493.4591P X-ray properties of the X-CLASS-redMaPPer galaxy cluster sample: the luminosity-temperature relation \|Molham, Mona, Clerc, Nicolas, et al. \| MNRAS \| 494-161 \| 2020 \| 2020MNRAS.494..161M \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.494..161M 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 Multiwavelength classification of X-ray selected galaxy cluster candidates using convolutional neural networks \|Kosiba, Matej, Lieu, Maggie, et al. \| MNRAS \| 496-4141 \| 2020 \| 2020MNRAS.496.4141K \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.496.4141K SPIDERS: overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release \|Clerc, N., Kirkpatrick, C. C., et al. \| MNRAS \| 497-3976 \| 2020 \| 2020MNRAS.497.3976C \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.497.3976C An X-Ray- and SZ-bright Diffuse Source toward M31: A Local Hot Bridge \|Qu, Zhijie, Huang, Rui, et al. \| ApJ \| 907-14 \| 2021 \| 2021ApJ...907...14Q \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...907...14Q A nearby galaxy perspective on dust evolution. Scaling relations and constraints on the dust build-up in galaxies with the DustPedia and DGS samples \|Galliano, Fr\\u00e9d\\u00e9ric, Nersesian, Angelos, et al. \| A&A \| 649-18 \| 2021 \| 2021A&A...649A..18G \| http://ui.adsabs.harvard.edu/#abs/2021A&A...649A..18G 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 impact of precession on the observed population of ULXs \|Khan, Norman, Middleton, Matthew J., et al. \| MNRAS \| 509-2493 \| 2022 \| 2022MNRAS.509.2493K \| http://ui.adsabs.harvard.edu/#abs/2022MNRAS.509.2493K The Solar Cycle Temporal Variation of the Solar Wind Charge Exchange X-Ray Lines \|Qu, Zhijie, Koutroumpa, Dimitra, et al. \| ApJ \| 930-21 \| 2022 \| 2022ApJ...930...21Q \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...930...21Q AGN impact on the molecular gas in galactic centres as probed by CO lines \|Esposito, Federico, Vallini, Livia, et al. \| MNRAS \| 512-686 \| 2022 \| 2022MNRAS.512..686E \| http://ui.adsabs.harvard.edu/#abs/2022MNRAS.512..686E The Redshift Evolution of Ultraluminous X-Ray Sources out to z 0.5: Comparison with X-Ray Binary Populations and Contribution to the Cosmic X-Ray Background \|Scott Barrows, R., Comerford, Julia M., et al. \| ApJ \| 932-27 \| 2022 \| 2022ApJ...932...27S \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...932...27S A hard look at the X-ray spectral variability of NGC 7582 \|Lefkir, Mehdy, Kammoun, Elias, et al. \| MNRAS \| 522-1169 \| 2023 \| 2023MNRAS.522.1169L \| http://ui.adsabs.harvard.edu/#abs/2023MNRAS.522.1169L Dynamical Response of Solar Wind Charge Exchange Soft X-Ray Emission in Earth.s Magnetosphere to the Solar Wind Proton Flux \|Zhang, Yingjie, Sun, Tianran, et al. \| ApJ \| 948-69 \| 2023 \| 2023ApJ...948...69Z \| http://ui.adsabs.harvard.edu/#abs/2023ApJ...948...69Z 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	2005-04-29T11:27:52Z/2005-04-30T17:29:09Z
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	2006-06-23T00:00:00Z
Keywords	"NGC 7582", "XMM", "variable seyfert", "agn nls1s", "xray variability properties", "narrow line seyfert", "central blackhole", "ngc 7582", "xray variability"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr NICHOLAS SCHURCH, 2006, 'NGC 7582: A SEYFERT 2 ANALOGY OF NARROW-LINE SEYFERT 1.SquestionMark', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-9ho1l17