The hard X-ray spectrum of NGC 5506 as seen by NuSTAR

G. Matt; M. Balokovic; A. Marinucci; D. R. Ballantyne; S. E. Boggs; Finn Erland Christensen; A. Comastri; W. W. Craig; P. Gandhi; C. J. Hailey

doi:10.1093/mnras/stu2653

The hard X-ray spectrum of NGC 5506 as seen by NuSTAR

G. Matt, M. Balokovic, A. Marinucci, D. R. Ballantyne, S. E. Boggs, Finn Erland Christensen, A. Comastri, W. W. Craig, P. Gandhi, C. J. Hailey

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Abstract

NuSTAR observed the bright Compton-thin, narrow-line Seyfert 1 galaxy, NGC 5506, for about 56 ks. In agreement with past observations, the spectrum is well fitted by a power law with Γ∼ to 1.9, a distant reflection component and narrow ionized iron lines. A relativistically blurred reflection component is not required by the data. When an exponential high-energy cutoff is added to the power law, a value of 720+130/-190 keV (90 per cent confidence level) is found. Even allowing for systematic uncertainties, we find a 3 sigma lower limit to the high-energy cutoff of 350 keV, the highest lower limit to the cutoff energy found so far in an AGN by NuSTAR.

Original language	English
Journal	Monthly Notices of the Royal Astronomical Society
Volume	447
Issue number	4
Pages (from-to)	3029-3033
ISSN	0035-8711
DOIs	https://doi.org/10.1093/mnras/stu2653
Publication status	Published - 2015

Keywords

Accretion, accretion discs
Galaxies: active
Galaxies: individual: NGC 5506

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10.1093/mnras/stu2653

MNRAS 2015 Matt 3029 33Final published version, 777 KB

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title = "The hard X-ray spectrum of NGC 5506 as seen by NuSTAR",

abstract = "NuSTAR observed the bright Compton-thin, narrow-line Seyfert 1 galaxy, NGC 5506, for about 56 ks. In agreement with past observations, the spectrum is well fitted by a power law with Γ∼ to 1.9, a distant reflection component and narrow ionized iron lines. A relativistically blurred reflection component is not required by the data. When an exponential high-energy cutoff is added to the power law, a value of 720+130/-190 keV (90 per cent confidence level) is found. Even allowing for systematic uncertainties, we find a 3 sigma lower limit to the high-energy cutoff of 350 keV, the highest lower limit to the cutoff energy found so far in an AGN by NuSTAR.",

keywords = "Accretion, accretion discs, Galaxies: active, Galaxies: individual: NGC 5506",

author = "G. Matt and M. Balokovic and A. Marinucci and Ballantyne, {D. R.} and Boggs, {S. E.} and Christensen, {Finn Erland} and A. Comastri and Craig, {W. W.} and P. Gandhi and Hailey, {C. J.}",

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language = "English",

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T1 - The hard X-ray spectrum of NGC 5506 as seen by NuSTAR

AU - Matt, G.

AU - Balokovic, M.

AU - Marinucci, A.

AU - Ballantyne, D. R.

AU - Boggs, S. E.

AU - Christensen, Finn Erland

AU - Comastri, A.

AU - Craig, W. W.

AU - Gandhi, P.

AU - Hailey, C. J.

PY - 2015

Y1 - 2015

N2 - NuSTAR observed the bright Compton-thin, narrow-line Seyfert 1 galaxy, NGC 5506, for about 56 ks. In agreement with past observations, the spectrum is well fitted by a power law with Γ∼ to 1.9, a distant reflection component and narrow ionized iron lines. A relativistically blurred reflection component is not required by the data. When an exponential high-energy cutoff is added to the power law, a value of 720+130/-190 keV (90 per cent confidence level) is found. Even allowing for systematic uncertainties, we find a 3 sigma lower limit to the high-energy cutoff of 350 keV, the highest lower limit to the cutoff energy found so far in an AGN by NuSTAR.

AB - NuSTAR observed the bright Compton-thin, narrow-line Seyfert 1 galaxy, NGC 5506, for about 56 ks. In agreement with past observations, the spectrum is well fitted by a power law with Γ∼ to 1.9, a distant reflection component and narrow ionized iron lines. A relativistically blurred reflection component is not required by the data. When an exponential high-energy cutoff is added to the power law, a value of 720+130/-190 keV (90 per cent confidence level) is found. Even allowing for systematic uncertainties, we find a 3 sigma lower limit to the high-energy cutoff of 350 keV, the highest lower limit to the cutoff energy found so far in an AGN by NuSTAR.

KW - Accretion, accretion discs

KW - Galaxies: active

KW - Galaxies: individual: NGC 5506

U2 - 10.1093/mnras/stu2653

DO - 10.1093/mnras/stu2653

M3 - Journal article

SN - 0035-8711

VL - 447

SP - 3029

EP - 3033

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

The hard X-ray spectrum of NGC 5506 as seen by NuSTAR

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Keywords

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