High-energy monitoring of NGC 4593 II. Broad-band spectral analysis: testing the two-corona model

被引：29

作者：

Middei, R. ^{[1
]}

Bianchi, S. ^{[1
]}

Petrucci, P. -O. ^{[2
]}

Ursini, F. ^{[3
]}

Cappi, M. ^{[3
]}

De Marco, B. ^{[4
]}

De Rosa, A. ^{[5
]}

Malzac, J. ^{[6
]}

Marinucci, A. ^{[1
]}

Matt, G. ^{[1
]}

Ponti, G. ^{[7
]}

Tortosa, A. ^{[5
]}

机构：

[1] Univ Roma Tre, Dipartimento Matemat & Fis, Via Vasca Navale 84, I-00146 Rome, Italy

[2] Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France

[3] INAF Osservatorio Astrofis & Sci Spazio Bologna, Via Piero Gobetti 93-3, I-40129 Bologna, Italy

[4] Nicolaus Copernicus Astron Ctr, PL-00716 Warsaw, Poland

[5] INAF Ist Astrofis & Planetol Spaziali, Via Fosso Cavaliere, I-00133 Rome, Italy

[6] Univ Toulouse, UPS, CNRS, IRAP,CNES, F-31028 Toulouse, France

[7] Max Planck Inst Extraterr Phys, Giessenbachstr, D-85748 Garching, Germany

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2019年 / 483卷 / 04期

关键词：

galaxies: active; galaxies: Seyfert; X-rays: galaxies; X-rays: individuals: (NGC 4593); ACTIVE GALACTIC NUCLEI; X-RAY-SPECTRA; PHOTON IMAGING CAMERA; XMM-NEWTON; BLACK-HOLE; BEPPOSAX OBSERVATIONS; SEYFERT-GALAXIES; AGN CORONAE; SOFT EXCESS; VARIABILITY;

D O I：

10.1093/mnras/sty3379

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is widely believed that the primary X-ray emission of AGN is due to the Comptonization of optical-UV photons from a hot electron corona, while the origin of the 'soft-excess' is still uncertain and matter of debate. A second Comptonization component, called warm corona, was therefore proposed to account for the soft-excess, and found in agreement with the optical-UV to X-ray emission of a sample of Seyfert galaxies. In this context, we exploit the broad-band XMM-Newton and NuSTAR simultaneous observations of the Seyfert galaxy NGC 4593 to further test the so-called 'two corona model'. The NGC 4593 spectra are well reproduced by the model, from the optical/UV to the hard X-rays. Moreover, the data reveal a significant correlation between the hot and the warm corona parameters during our monitoring campaign.

引用

页码：4695 / 4705

页数：11

共 2 条

[1] High-energy monitoring of NGC 4593 with XMM-Newton and NuSTAR. X-ray spectral analysis
Ursini, F.
Petrucci, P. -O.
Matt, G.
Bianchi, S.
Cappi, M.
De Marco, B.
De Rosa, A.
Malzac, J.
Marinucci, A.
Ponti, G.
Tortosa, A.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2016, 463 (01) : 382 - 392
[2] Recovering galaxy stellar population properties from broad-band spectral energy distribution fitting - II. The case with unknown redshift
Pforr, Janine
Maraston, Claudia
Tonini, Chiara
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2013, 435 (02) : 1389 - 1425

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