Polarization constraints on the X-ray corona in Seyfert Galaxies: MCG-05-23-16

Marinucci, A.; Muleri, F.; Dovčiak, Michal; Bianchi, Stefano; Marin, F.; Matt, G.; Ursini, F.; Middei, R.; Marshall, H.L.; Baldini, L.; Barnouin, Thibault; Rodriguez, N. Cavero; De Rosa, A.; Di Gesu, L.; Harper, D.; Ingram, A.; Karas, V.; Krawczynski, H.; Madejski, G.; Panagiotou, C..; Petrucci, P.O.; Podgorny, J.; Puccetti, S.; Tombesi, F.; Veledina, A.; Zhang, W.; Agudo, Ivan; Antonelli, L.A.; Bachetti, Matteo; Baumgartner, Wayne H.; Bellazzini, Ronaldo; Bongiorno, S.D.; Bonino, Raffaella; Brez, Alessandro; Bucciantini, Niccolò; Capitanio, Fiamma; Castellano, Simone; Cavazzuti, Elisabetta; Ciprini, Stefano; Costa, E.; Del Monte, E.; Di Lalla, N.; Di Marco, A.; Donnarumma, I.; Doroshenko, V.; Ehlert, Steven R.; Enoto, T.; Evangelista, Yuri; Fabiani, Sergio; Ferrazzoli, R.; Garcia, J.A.; Gunji, S.; Hayashida, K.; Heyl, J.; Iwakiri, W.; Jorstad, S.G.; Kitaguchi, T.; Kolodziejczak, J.J.; La Monaca, F.; Latronico, L.; Liodakis, I.; Maldera, S.; Manfreda, A.; Marscher, A.P.; Mitsuishi, I.; Mizuno, T.; Ng, C.-Y.; O’Dell, S.L.; Omodei, N.; Oppedisano, C.; Papitto, A.; Pavlov, G.G.; Peirson, A.L.; Perri, M.; Pesce-Rollins, M.; Pilia, M.; Possenti, A.; Poutanen, J.; Ramsey, B.D.; Rankin, J.; Ratheesh, A.; Romani, R.W.; Sgrš, C.; Slane, P.; Soffitta, P.; Spandre, G.; Tamagawa, T.; Tavecchio, F.; Taverna, R.; Tawara, Y.; Tennant, A.F.; Thomas, N.E.; Trois, A.; Tsygankov, S.S.; Turolla, R.; Vink, J.; Weisskopf, M.C.; Wu, K.; Xie, F.; Zane, S.

Polarization constraints on the X-ray corona in Seyfert Galaxies: MCG-05-23-16

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Polarization_constraints_on_the_X-ray_corona_in_Se.pdf(989.67 KB)

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Date

2022-10-03

DOI

10.1093/mnras/stac2634

Authors

Marinucci, A.

Muleri, F.

Dovčiak, Michal

Bianchi, Stefano

Marin, F.

Matt, G.

Ursini, F.

Middei, R.

Marshall, H.L.

Baldini, L.

URI

https://hdl.handle.net/2144/46393

OA Version

Published version

Citation

A. Marinucci, F. Muleri, M. Dovciak, S. Bianchi, F. Marin, G. Matt, F. Ursini, R. Middei, H.L. Marshall, L. Baldini, T. Barnouin, N.C. Rodriguez, A. De Rosa, L. Di Gesu, D. Harper, A. Ingram, V. Karas, H. Krawczynski, G. Madejski, C. Panagiotou, P.O. Petrucci, J. Podgorny, S. Puccetti, F. Tombesi, A. Veledina, W. Zhang, I. Agudo, L.A. Antonelli, M. Bachetti, W.H. Baumgartner, R. Bellazzini, S.D. Bongiorno, R. Bonino, A. Brez, N. Bucciantini, F. Capitanio, S. Castellano, E. Cavazzuti, S. Ciprini, E. Costa, E. Del Monte, N. Di Lalla, A. Di Marco, I. Donnarumma, V. Doroshenko, S.R. Ehlert, T. Enoto, Y. Evangelista, S. Fabiani, R. Ferrazzoli, J.A. Garcia, S. Gunji, K. Hayashida, J. Heyl, W. Iwakiri, S.G. Jorstad, T. Kitaguchi, J.J. Kolodziejczak, F. La Monaca, L. Latronico, I. Liodakis, S. Maldera, A. Manfreda, A.P. Marscher, I. Mitsuishi, T. Mizuno, C.-Y. Ng, S.L. O’Dell, N. Omodei, C. Oppedisano, A. Papitto, G.G. Pavlov, A.L. Peirson, M. Perri, M. Pesce-Rollins, M. Pilia, A. Possenti, J. Poutanen, B.D. Ramsey, J. Rankin, A. Ratheesh, R.W. Romani, C. Sgrš, P. Slane, P. Soffitta, G. Spandre, T. Tamagawa, F. Tavecchio, R. Taverna, Y. Tawara, A.F. Tennant, N.E. Thomas, A. Trois, S.S. Tsygankov, R. Turolla, J. Vink, M.C. Weisskopf, K. Wu, F. Xie, S. Zane. 2022. "Polarization constraints on the X-ray corona in Seyfert Galaxies: MCG-05-23-16" Monthly Notices of the Royal Astronomical Society, Volume 516, Issue 4, pp.5907-5913. https://doi.org/10.1093/mnras/stac2634

Abstract

We report on the first observation of a radio-quiet active galactic nucleus (AGN) in polarized X-rays: the Seyfert 1.9 galaxy MCG-05-23-16. This source was pointed at with the Imaging X-ray Polarimetry Explorer (IXPE) starting on 2022 May 14 for a net observing time of 486 ks, simultaneously with XMM-Newton (58 ks) and NuSTAR (83 ks). A polarization degree Π smaller than 4.7 per cent (at the 99 per cent confidence level) is derived in the 2–8 keV energy range, where emission is dominated by the primary component ascribed to the hot corona. The broad-band spectrum, inferred from a simultaneous fit to the IXPE, NuSTAR, and XMM-Newton data, is well reproduced by a power law with photon index Γ = 1.85 ± 0.01 and a high-energy cutoff EC = 120 ± 15 keV. A comparison with Monte Carlo simulations shows that a lamp-post and a conical geometry of the corona are consistent with the observed upper limit, a slab geometry is allowed only if the inclination angle of the system is less than 50°.

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This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2022 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

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