A dataset provided by the European Space Agency

Name: Spectral states in the Seyfert 2 galaxy NGC 2992
Published: 2025-03-25T09:54:37Z

Proposal ID	1020006
Obs ID	10200060001
Title	Spectral states in the Seyfert 2 galaxy NGC 2992
Download Data Associated to the proposal	https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:1020006
DOI	https://doi.org/10.57780/esa-mksbrl5
Author	Beckmann
Abstract	We request an INTEGRAL observation of 500 ksec of the bright Seyfert 2 galaxy NGC 2992. Analysis using the latest OSA-9 software of the INTEGRAL observations in 2005 shows a cut-off power law, consistent with previous observations (e.g. by BeppoSAX). At the same time, NGC 2992 has been shown to be the most variable Seyfert at hardest X-rays on months time-scale. Observing NGC 2992 again after 8 years enables us to study this Seyfert 2 galaxy at a possibly different flux state and in a different spectral state. The observations can help to clarify whether super massive black holes follow a similar spectral behaviour as Galactic black hole systems.INTEGRAL offers the unique possibility to study the physics involved in absorbed AGN and even enables us to study the connection between flux variation, high-energy cut-off, reflection component, and iron fluorescenceline. The variation in flux over the time of the observation in various energy bands can reveal the geometry of this source. In the case that the state of the source is similar as 7 years ago, the observation will help to further constrain the high energy spectrum of this source. A simultaneous 10 ks XMM-Newton observation will measure precisely the amount of absorption in the line of sight, the strength of the iron K-alpha line, and will allow us to determine the reflection component to a precision of (Delta R) ~ 0.3.
Publications	Background modelling for I3-ray spectroscopy with INTEGRAL/SPI - Siegert, Thomas, Diehl, Roland,Weinberger, Christoph,Pleintinger, Moritz M. M.,Greiner, Jochen,Zhang, Xiaoling (2019-06-01) http://ui.adsabs.harvard.edu/#abs/2019A&A...626A..73S Comparing simulated ²⁶Al maps to gamma-ray measurements - Pleintinger, Moritz M. M., Siegert, Thomas,Diehl, Roland,Fujimoto, Yusuke,Greiner, Jochen,Krause, Martin G. H.,Krumholz, Mark R. (2019-12-01) http://ui.adsabs.harvard.edu/#abs/2019A&A...632A..73P Discovery of blue companions to two southern Cepheids: WW Car and FN Vel - Kovtyukh, V., Szabados, L.,Chekhonadskikh, F.,Lemasle, B.,Belik, S. (2015-04-01) http://ui.adsabs.harvard.edu/#abs/2015MNRAS.448.3567K Dose Measured On-Board INTEGRAL After More Than 12 Years in Space - Claret, Arnaud, Laurent, Philippe,Sauvageon, Aymeric,Savchenko, Volodymyr (2015-12-01) http://ui.adsabs.harvard.edu/#abs/2015ITNS...62.2784C Extreme relativistic electron fluxes in the Earths outer radiation belt: Analysis of INTEGRAL IREM data - Meredith, Nigel P., Horne, Richard B.,Sandberg, Ingmar,Papadimitriou, Constantinos,Evans, Hugh D. R. (2017-07-01) http://ui.adsabs.harvard.edu/#abs/2017SpWea..15..917M Gamma-Ray Emission of ⁶⁰Fe and ²⁶Al Radioactivity in Our Galaxy - Wang, W., Siegert, T.,Dai, Z. G.,Diehl, R.,Greiner, J.,Heger, A.,Krause, M.,Lang, M.,Pleintinger, M. M. M.,Zhang, X. L. (2020-02-01) http://ui.adsabs.harvard.edu/#abs/2020ApJ...889..169W Hoinga: a supernova remnant discovered in the SRG/eROSITA All-Sky Survey eRASS1 - Becker, W., Hurley-Walker, N.,Weinberger, Ch.,Nicastro, L.,Mayer, M. G. F.,Merloni, A.,Sanders, J. (2021-04-01) http://ui.adsabs.harvard.edu/#abs/2021A&A...648A..30B INTEGRAL 11-year hard X-ray survey above 100 keV - Krivonos, R., Tsygankov, S.,Lutovinov, A.,Revnivtsev, M.,Churazov, E.,Sunyaev, R. (2015-04-01) http://ui.adsabs.harvard.edu/#abs/2015MNRAS.448.3766K INTEGRAL/SPI {$gamma$}-ray line spectroscopy. Response and background characteristics - Diehl, Roland, Siegert, Thomas,Greiner, Jochen,Krause, Martin,Kretschmer, Karsten,Lang, Michael,Pleintinger, Moritz,Strong, Andrew W.,Weinberger, Christoph,Zhang, Xiaoling (2018-03-01) http://ui.adsabs.harvard.edu/#abs/2018A&A...611A..12D Multicolour modelling of SN 2013dx associated with GRB 130702A^★ - Volnova, A. A., Pruzhinskaya, M. V.,Pozanenko, A. S.,Blinnikov, S. I.,Minaev, P. Yu.,Burkhonov, O. A.,Chernenko, A. M.,Ehgamberdiev, Sh. A.,Inasaridze, R.,Jelinek, M.,Khorunzhev, G. A.,Klunko, E. V.,Krugly, Yu. N.,Mazaeva, E. D.,Rumyantsev, V. V.,Volvach, A. E. (2017-05-01) http://ui.adsabs.harvard.edu/#abs/2017MNRAS.467.3500V New hard X-ray sources discovered in the ongoing INTEGRAL Galactic plane survey after 14 yr of observations - Krivonos, Roman A., Tsygankov, Sergey S.,Mereminskiy, Ilya A.,Lutovinov, Alexander A.,Sazonov, Sergey Yu.,Sunyaev, Rashid A. (2017-09-01) http://ui.adsabs.harvard.edu/#abs/2017MNRAS.470..512K ²⁶Al gamma rays from the Galaxy with INTEGRAL/SPI - Pleintinger, Moritz M. M., Diehl, Roland,Siegert, Thomas,Greiner, Jochen,Krause, Martin G. H. (2023-04-01) http://ui.adsabs.harvard.edu/#abs/2023A&A...672A..53P The Galactic Bulge Diffuse Emission in Broadband X-Rays with NuSTAR - Perez, Kerstin, Krivonos, Roman,Wik, Daniel R. (2019-10-01) http://ui.adsabs.harvard.edu/#abs/2019ApJ...884..153P The INTEGRAL/IBIS AGN catalogue: an update - Malizia, A., Landi, R.,Molina, M.,Bassani, L.,Bazzano, A.,Bird, A. J.,Ubertini, P. (2016-07-01) http://ui.adsabs.harvard.edu/#abs/2016MNRAS.460...19M Type I X-ray Bursts Detected by the JEM-X Telescope Onboard the INTEGRAL Observatory in 2003-2015 - Chelovekov, I. V., Grebenev, S. A.,Mereminskiy, I. A.,Prosvetov, A. V. (2017-12-01) http://ui.adsabs.harvard.edu/#abs/2017AstL...43..781C Unveiling the nature of INTEGRAL objects through optical spectroscopy. X. A new multi-year, multi-observatory campaign - Masetti, N., Parisi, P.,Palazzi, E.,Jimenez-Bailon, E.,Chavushyan, V.,McBride, V.,Rojas, A. F.,Steward, L.,Bassani, L.,Bazzano, A.,Bird, A. J.,Charles, P. A.,Galaz, G.,Landi, R.,Malizia, A.,Mason, E.,Minniti, D.,Morelli, L.,Schiavone, F.,Stephen, J. B.,Ubertini, P. (2013-08-01) http://ui.adsabs.harvard.edu/#abs/2013A&A...556A.120M VerticaVertical position of the Sun with gamma-rays - Siegert, Thomas, (2019-12-01) http://ui.adsabs.harvard.edu/#abs/2019A&A...632L...1S Water megamaser emission in hard X-ray selected AGN - Panessa, F., Castangia, P.,Malizia, A.,Bassani, L.,Tarchi, A.,Bazzano, A.,Ubertini, P. (2020-09-01) http://ui.adsabs.harvard.edu/#abs/2020A&A...641A.162P X-ray absorption in INTEGRAL active galactic nuclei. Host galaxy inclination - Malizia, A., Bassani, L.,Stephen, J. B.,Bazzano, A.,Ubertini, P. (2020-07-01) http://ui.adsabs.harvard.edu/#abs/2020A&A...639A...5M
Temporal Coverage	2013-05-10T02:25:29Z / 2013-05-20T12:39:29Z
Version	1.0
Mission Description	The INTEGRAL (International Gamma-Ray Astrophysics Laboratory) mission, launched by the European Space Agency (ESA) on October 17, 2002, was designed to study high-energy phenomena in the universe. INTEGRAL was operating until february 2025 and it was equipped with three high-energy instruments: the Imager on Board the INTEGRAL Satellite (IBIS), the Spectrometer on INTEGRAL (SPI), and the JEM-X (Joint European Monitor for X-rays). Its Optical Monitoring Camera (OMC) provided optical V-band magnitude measurements, complementing the high-energy observations.
Creator Contact	https://www.cosmos.esa.int/web/integral/helpdesk
Date Published	2025-03-25T09:54:37Z
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Beckmann, 2025, 'Spectral states in the Seyfert 2 galaxy NGC 2992', 1.0, European Space Agency, https://doi.org/10.57780/esa-mksbrl5