X-ray spectra of narrow-line seyfert 1 galaxies in comparison with galactic black holes

Mio M. Murashima; Aya Kubota; Kazuo Makishima

doi:10.1143/PTPS.155.389

X-ray spectra of narrow-line seyfert 1 galaxies in comparison with galactic black holes

Mio M. Murashima, Aya Kubota, Kazuo Makishima

Research output: Contribution to journal › Article › peer-review

Abstract

In order to study the origin of the soft excess of Narrow-Line Seyfert1 Galaxies, 7 objects observed with XMM-Newton are analyzed. The soft excess is found to have mildly convex shape, which is successfully reproduced by a power-law with an exponential cutoff. It can be interpreted as disk Comptonization by cool and relatively optically thick plasma based on an analogy with Galactic black holes under high accretion rates.

Original language	English
Pages (from-to)	389-390
Number of pages	2
Journal	Progress of Theoretical Physics Supplement
Volume	155
DOIs	https://doi.org/10.1143/PTPS.155.389
Publication status	Published - 2004 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1143/PTPS.155.389

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title = "X-ray spectra of narrow-line seyfert 1 galaxies in comparison with galactic black holes",

abstract = "In order to study the origin of the soft excess of Narrow-Line Seyfert1 Galaxies, 7 objects observed with XMM-Newton are analyzed. The soft excess is found to have mildly convex shape, which is successfully reproduced by a power-law with an exponential cutoff. It can be interpreted as disk Comptonization by cool and relatively optically thick plasma based on an analogy with Galactic black holes under high accretion rates.",

author = "Murashima, {Mio M.} and Aya Kubota and Kazuo Makishima",

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doi = "10.1143/PTPS.155.389",

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N2 - In order to study the origin of the soft excess of Narrow-Line Seyfert1 Galaxies, 7 objects observed with XMM-Newton are analyzed. The soft excess is found to have mildly convex shape, which is successfully reproduced by a power-law with an exponential cutoff. It can be interpreted as disk Comptonization by cool and relatively optically thick plasma based on an analogy with Galactic black holes under high accretion rates.

AB - In order to study the origin of the soft excess of Narrow-Line Seyfert1 Galaxies, 7 objects observed with XMM-Newton are analyzed. The soft excess is found to have mildly convex shape, which is successfully reproduced by a power-law with an exponential cutoff. It can be interpreted as disk Comptonization by cool and relatively optically thick plasma based on an analogy with Galactic black holes under high accretion rates.

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JO - Progress of Theoretical Physics

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ER -

X-ray spectra of narrow-line seyfert 1 galaxies in comparison with galactic black holes

Abstract

ASJC Scopus subject areas

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