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Journal Articles Monthly Notices of the Royal Astronomical Society Year : 2022

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

A. Marinucci
  • Function : Author
F. Muleri
  • Function : Author
M. Dovciak
  • Function : Author
S. Bianchi
  • Function : Author
G. Matt
  • Function : Author
F. Ursini
  • Function : Author
R. Middei
  • Function : Author
H. L. Marshall
  • Function : Author
L. Baldini
  • Function : Author
N. Cavero Rodriguez
  • Function : Author
A. De Rosa
  • Function : Author
L. Di Gesu
  • Function : Author
D. Harper
  • Function : Author
A. Ingram
  • Function : Author
V. Karas
  • Function : Author
H. Krawczynski
  • Function : Author
G. Madejski
  • Function : Author
C. Panagiotou
  • Function : Author
S. Puccetti
  • Function : Author
F. Tombesi
  • Function : Author
A. Veledina
  • Function : Author
W. Zhang
  • Function : Author
I. Agudo
  • Function : Author
L. A. Antonelli
  • Function : Author
M. Bachetti
  • Function : Author
W. H. Baumgartner
  • Function : Author
R. Bellazzini
  • Function : Author
S. D. Bongiorno
  • Function : Author
R. Bonino
  • Function : Author
A. Brez
  • Function : Author
N. Bucciantini
  • Function : Author
F. Capitanio
  • Function : Author
S. Castellano
  • Function : Author
E. Cavazzuti
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S. Ciprini
  • Function : Author
E. Costa
  • Function : Author
E. del Monte
  • Function : Author
N. Di Lalla
  • Function : Author
A. Di Marco
  • Function : Author
I. Donnarumma
  • Function : Author
V. Doroshenko
  • Function : Author
S. R. Ehlert
  • Function : Author
T. Enoto
  • Function : Author
Y. Evangelista
  • Function : Author
S. Fabiani
  • Function : Author
R. Ferrazzoli
  • Function : Author
J. A. Garcia
  • Function : Author
S. Gunji
  • Function : Author
K. Hayashida
  • Function : Author
J. Heyl
  • Function : Author
W. Iwakiri
  • Function : Author
S. G. Jorstad
  • Function : Author
T. Kitaguchi
  • Function : Author
J. J. Kolodziejczak
  • Function : Author
F. La Monaca
  • Function : Author
L. Latronico
  • Function : Author
I. Liodakis
  • Function : Author
S. Maldera
  • Function : Author
A. Manfreda
  • Function : Author
A. P. Marscher
  • Function : Author
I. Mitsuishi
  • Function : Author
T. Mizuno
  • Function : Author
C. -Y. Ng
  • Function : Author
S. L. O'Dell
  • Function : Author
N. Omodei
  • Function : Author
C. Oppedisano
  • Function : Author
A. Papitto
  • Function : Author
G. G. Pavlov
  • Function : Author
A. L. Peirson
  • Function : Author
M. Perri
  • Function : Author
M. Pesce-Rollins
  • Function : Author
M. Pilia
  • Function : Author
A. Possenti
  • Function : Author
J. Poutanen
  • Function : Author
B. D. Ramsey
  • Function : Author
J. Rankin
  • Function : Author
A. Ratheesh
  • Function : Author
R. W. Romani
  • Function : Author
C. Sgrš
  • Function : Author
P. Slane
  • Function : Author
P. Soffitta
  • Function : Author
G. Spandre
  • Function : Author
T. Tamagawa
  • Function : Author
F. Tavecchio
  • Function : Author
R. Taverna
  • Function : Author
Y. Tawara
  • Function : Author
A. F. Tennant
  • Function : Author
N. E. Thomas
  • Function : Author
A. Trois
  • Function : Author
S. S. Tsygankov
  • Function : Author
R. Turolla
  • Function : Author
J. Vink
  • Function : Author
M. C. Weisskopf
  • Function : Author
K. Wu
  • Function : Author
F. Xie
  • Function : Author
S. Zane
  • Function : Author

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 May 14, 2022 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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Dates and versions

insu-03794870 , version 1 (06-07-2023)

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A. Marinucci, F. Muleri, M. Dovciak, S. Bianchi, F. Marin, et al.. Polarization constraints on the X-ray corona in Seyfert Galaxies: MCG-05-23-16. Monthly Notices of the Royal Astronomical Society, 2022, 516 (4), pp.5907-5913. ⟨10.1093/mnras/stac2634⟩. ⟨insu-03794870⟩
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