Spectral evolution of an ultraluminous compact X-ray source in NGC 253

Takaaki Tanaka; Masahiko Sugiho; Aya Kubota; Kazuo Makishima; Tadayuki Takahashi

doi:10.1143/PTPS.155.427

Spectral evolution of an ultraluminous compact X-ray source in NGC 253

Takaaki Tanaka, Masahiko Sugiho, Aya Kubota, Kazuo Makishima, Tadayuki Takahashi

研究成果: Article › 査読

抄録

We report an observational result for a ULX in NGC253. We find that the spectral evolution is well consistent with the standard behavior. That is, the source satisfies the relation L_disk ∝ T_in ⁴ as established for black hole binaries. By comparing with black hole binaries, we estimate black hole mass of this ULX as 7M⊙.

本文言語	English
ページ（範囲）	427-428
ページ数	2
ジャーナル	Progress of Theoretical Physics Supplement
巻	155
DOI	https://doi.org/10.1143/PTPS.155.427
出版ステータス	Published - 2004
外部発表	はい

ASJC Scopus subject areas

物理学および天文学（その他）

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10.1143/PTPS.155.427

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abstract = "We report an observational result for a ULX in NGC253. We find that the spectral evolution is well consistent with the standard behavior. That is, the source satisfies the relation Ldisk ∝ Tin 4 as established for black hole binaries. By comparing with black hole binaries, we estimate black hole mass of this ULX as 7M⊙.",

author = "Takaaki Tanaka and Masahiko Sugiho and Aya Kubota and Kazuo Makishima and Tadayuki Takahashi",

year = "2004",

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AU - Sugiho, Masahiko

AU - Kubota, Aya

AU - Makishima, Kazuo

AU - Takahashi, Tadayuki

PY - 2004

Y1 - 2004

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AB - We report an observational result for a ULX in NGC253. We find that the spectral evolution is well consistent with the standard behavior. That is, the source satisfies the relation Ldisk ∝ Tin 4 as established for black hole binaries. By comparing with black hole binaries, we estimate black hole mass of this ULX as 7M⊙.

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Spectral evolution of an ultraluminous compact X-ray source in NGC 253

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