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Simultaneous NuSTAR and XMM–Newton 0.5–80 keV spectroscopy of the narrow-line Seyfert 1 galaxy SWIFT J2127.4+5654

Marinucci, A. and Matt, G. and Kara, E. and Miniutti, G. and Elvis, M. and Arevalo, P. and Ballantyne, D. R. and Baloković, M. and Bauer, F. and Brenneman, L. and Boggs, S. E. and Cappi, M. and Christensen, F. E. and Craig, W. W. and Fabian, A. C. and Fuerst, F. and Hailey, C. J. and Harrison, F. A. and Risaliti, G. and Reynolds, C. S. and Stern, D. K. and Walton, D. J. and Zhang, W. (2014) Simultaneous NuSTAR and XMM–Newton 0.5–80 keV spectroscopy of the narrow-line Seyfert 1 galaxy SWIFT J2127.4+5654. Monthly Notices of the Royal Astronomical Society, 440 (3). pp. 2347-2356. ISSN 0035-8711. doi:10.1093/mnras/stu404.

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We present a broad-band spectral analysis of the joint XMM–Newton and Nuclear Spectroscopic Telescope Array observational campaign of the narrow-line Seyfert 1 SWIFT J2127.4+5654, consisting of 300 ks performed during three XMM–Newton orbits. We detect a relativistic broadened iron Kα line originating from the innermost regions of the accretion disc surrounding the central black hole, from which we infer an intermediate spin of ɑ=0.58+0.11−0.17. The intrinsic spectrum is steep (Γ = 2.08 ± 0.01) as commonly found in narrow-line Seyfert 1 galaxies, while the cutoff energy (E_c=108^(+11)_(−10) keV) falls within the range observed in broad-line Seyfert 1 galaxies. We measure a low-frequency lag that increases steadily with energy, while at high frequencies, there is a clear lag following the shape of the broad Fe K emission line. Interestingly, the observed Fe K lag in SWIFT J2127.4+5654 is not as broad as in other sources that have maximally spinning black holes. The lag amplitude suggests a continuum-to-reprocessor distance of about 10–20 r_g. These timing results independently support an intermediate black hole spin and a compact corona.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Matt, G.0000-0002-2152-0916
Kara, E.0000-0003-0172-0854
Ballantyne, D. R.0000-0001-8128-6976
Bauer, F.0000-0002-8686-8737
Boggs, S. E.0000-0001-9567-4224
Christensen, F. E.0000-0001-5679-1946
Fabian, A. C.0000-0002-9378-4072
Fuerst, F.0000-0003-0388-0560
Harrison, F. A.0000-0003-2992-8024
Stern, D. K.0000-0003-2686-9241
Walton, D. J.0000-0001-5819-3552
Zhang, W.0000-0002-1426-9698
Additional Information:© 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. First published online: April 2, 2014. Accepted 2014 February 27. Received 2014 February 25; in original form 2013 November 27. We thank the referee for her/his comments and suggestions that greatly improved the paper. AM thanks Javier Garcia and Thomas Dauser for the efforts in producing XILLVER and RELXILL tables to use in this paper. AM and GM acknowledge financial support from Italian Space Agency under grant ASI/INAF I/037/12/0-011/13 and from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 312789. PA and FB acknowledge support from Basal-CATA PFB-06/2007 (FEB), CONICYT-Chile FONDECYT 1101024 (FEB) and Anillo ACT1101 (FEB, PA). MB acknowledges support from the International Fulbright Science and Technology Award. This work was supported under NASA Contract no. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software and Calibration teams for support with the execution and analysis of these observations. This research has made use of the NuSTAR Data Analysis Software (NUSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA).
Group:NuSTAR, Space Radiation Laboratory
Funding AgencyGrant Number
Agenzia Spaziale Italiana (ASI)I/037/12/0-011/13
European Research Council (ERC)312789
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)1101024
Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)ACT1101
International Fulbright Science and Technology AwardUNSPECIFIED
Subject Keywords:accretion, accretion discs; galaxies: active; galaxies: individual: SWIFT; J2127.4+5654; galaxies: Seyfert
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2014-54
Issue or Number:3
Record Number:CaltechAUTHORS:20140530-100053201
Persistent URL:
Official Citation:A. Marinucci, G. Matt, E. Kara, G. Miniutti, M. Elvis, P. Arevalo, D. R. Ballantyne, M. Baloković, F. Bauer, L. Brenneman, S. E. Boggs, M. Cappi, F. E. Christensen, W. W. Craig, A. C. Fabian, F. Fuerst, C. J. Hailey, F. A. Harrison, G. Risaliti, C. S. Reynolds, D. K. Stern, D. J. Walton, and W. Zhang Simultaneous NuSTAR and XMM–Newton 0.5–80 keV spectroscopy of the narrow-line Seyfert 1 galaxy SWIFT J2127.4+5654 MNRAS first published online April 2, 2014 doi:10.1093/mnras/stu404
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45995
Deposited By: Ruth Sustaita
Deposited On:30 May 2014 17:25
Last Modified:10 Nov 2021 17:19

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