Uncovering the geometry of the hot X-ray corona in the seyfert galaxy NGC 4151 with IXPE

V. E. Gianolli; D. E. Kim; S. Bianchi; B. Agís-González; G. Madejski; F. Marin; A. Marinucci; G. Matt; R. Middei; P. -O. Petrucci; P. Soffitta; D. Tagliacozzo; F. Tombesi; F. Ursini; T. Barnouin; A. De Rosa; L. Di Gesu; A. Ingram; V. Loktev; C. Panagiotou; J. Podgorny; J. Poutanen; S. Puccetti; A. Ratheesh; A. Veledina; W. Zhang; I. Agudo; L. A. Antonelli; M. Bachetti; L. Baldini; W. H. Baumgartner; R. Bellazzini; S. D. Bongiorno; R. Bonino; A. Brez; N. Bucciantini; F. Capitanio; S. Castellano; E. Cavazzuti; C. -T. Chen; S. Ciprini; E. Costa; E. del Monte; N. Di Lalla; A. Di Marco; I. Donnarumma; V. Doroshenko; M. Dovčiak; S. R. Ehlert; T. Enoto; Y. Evangelista; S. Fabiani; R. Ferrazzoli; J. A. García; S. Gunji; J. Heyl; W. Iwakiri; S. G. Jorstad; P. Kaaret; V. Karas; F. Kislat; T. Kitaguchi; J. J. Kolodziejczak; H. Krawczynski; F. La Monaca; L. Latronico; I. Liodakis; S. Maldera; A. Manfreda; A. P. Marscher; H. L. Marshall; F. Massaro; I. Mitsuishi; T. Mizuno; F. Muleri; M. Negro; 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; B. D. Ramsey; J. Rankin; O. J. Roberts; R. W. Romani; C. Sgrò; P. Slane; G. Spandre; D. A. Swartz; 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

doi:10.1093/mnras/stad1697

Journal Articles Monthly Notices of the Royal Astronomical Society Year : 2023

Uncovering the geometry of the hot X-ray corona in the seyfert galaxy NGC 4151 with IXPE

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V. E. Gianolli

Function : Author

Institut de Planétologie et d'Astrophysique de Grenoble

D. E. Kim

Function : Author

S. Bianchi

Function : Author

B. Agís-González

Function : Author

G. Madejski

Function : Author

F. Marin

Function : Author

Observatoire astronomique de Strasbourg

A. Marinucci

Function : Author

G. Matt

Function : Author

R. Middei

Function : Author

P. -O. Petrucci

Function : Author

Institut de Planétologie et d'Astrophysique de Grenoble

P. Soffitta

Function : Author

D. Tagliacozzo

Function : Author

F. Tombesi

Function : Author

F. Ursini

Function : Author
PersonId : 1176271
ORCID : 0000-0001-9442-7897
IdRef : 204069068

T. Barnouin

Function : Author

Observatoire astronomique de Strasbourg

A. De Rosa

Function : Author

L. Di Gesu

Function : Author

A. Ingram

Function : Author

V. Loktev

Function : Author

C. Panagiotou

Function : Author

J. Podgorny

Function : Author

Observatoire astronomique de Strasbourg

J. Poutanen

Function : Author

S. Puccetti

Function : Author

A. Ratheesh

Function : Author

A. Veledina

Function : Author

W. Zhang

Function : Author

I. Agudo

Function : Author

L. A. Antonelli

Function : Author

M. Bachetti

Function : Author

L. Baldini

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

Function : Author

C. -T. Chen

Function : Author

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

M. Dovčiak

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. García

Function : Author

S. Gunji

Function : Author

J. Heyl

Function : Author

W. Iwakiri

Function : Author

S. G. Jorstad

Function : Author

P. Kaaret

Function : Author

V. Karas

Function : Author

F. Kislat

Function : Author

T. Kitaguchi

Function : Author

J. J. Kolodziejczak

Function : Author

H. Krawczynski

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

H. L. Marshall

Function : Author

F. Massaro

Function : Author

I. Mitsuishi

Function : Author

T. Mizuno

Function : Author

F. Muleri

Function : Author

M. Negro

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

B. D. Ramsey

Function : Author

J. Rankin

Function : Author

O. J. Roberts

Function : Author

R. W. Romani

Function : Author

C. Sgrò

Function : Author

P. Slane

Function : Author

G. Spandre

Function : Author

D. A. Swartz

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 present an X-ray spectro-polarimetric analysis of the bright Seyfert galaxy NGC 4151. The source has been observed with the Imaging X-ray Polarimetry Explorer (IXPE) for 700 ks, complemented with simultaneous XMM-Newton (50 ks) and NuSTAR (100 ks) pointings. A polarization degree Π = 4.9 ± 1.1% and angle Ψ = 86^○ ± 7^○ east of north (68% confidence level) are measured in the 2-8 keV energy range. The spectro-polarimetric analysis shows that the polarization could be entirely due to reflection. Given the low reflection flux in the IXPE band, this requires however a reflection with a very large (>38%) polarization degree. Assuming more reasonable values, a polarization degree of the hot corona ranging from ~4 to ~8% is found. The observed polarization degree excludes a 'spherical' lamppost geometry for the corona, suggesting instead a slab-like geometry, possibly a wedge, as determined via Monte Carlo simulations. This is further confirmed by the X-ray polarization angle, which coincides with the direction of the extended radio emission in this source, supposed to match the disc axis. NGC 4151 is the first AGN with an X-ray polarization measure for the corona, illustrating the capabilities of X-ray polarimetry and IXPE in unveiling its geometry.

Keywords

galaxies: active galaxies: Seyfert galaxies: individual: NGC 4151 polarization Astrophysics - Astrophysics of Galaxies Astrophysics - High Energy Astrophysical Phenomena galaxies: active

Domains

Sciences of the Universe [physics]

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Submitted on : Friday, May 24, 2024-4:17:00 PM

Last modification on : Monday, December 9, 2024-3:21:03 AM

Dates and versions

insu-04135604 , version 1 (24-05-2024)

Identifiers

HAL Id : insu-04135604 , version 1
ARXIV : 2303.12541
BIBCODE : 2023MNRAS.tmp.1634G
DOI : 10.1093/mnras/stad1697

Cite

V. E. Gianolli, D. E. Kim, S. Bianchi, B. Agís-González, G. Madejski, et al.. Uncovering the geometry of the hot X-ray corona in the seyfert galaxy NGC 4151 with IXPE. Monthly Notices of the Royal Astronomical Society, 2023, ⟨10.1093/mnras/stad1697⟩. ⟨insu-04135604⟩

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Uncovering the geometry of the hot X-ray corona in the seyfert galaxy NGC 4151 with IXPE

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