XMM-Newton Observations of Luminous Narrow-Line Seyfert 1 Galaxies(Poster)

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概要

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• We observed four optically-luminous narrow-line Seyfert 1 galaxies (NLS1s) with XMM-Newton. All the four NLS1s were detected. The observed X-ray spectra were rather steep (Γ=2-3), as is typical among NLS1s. Utilizing simultaneous UV observations by the XMM-Newton optical monitor (OM), we also investigate the spectral energy distributions in the UV-X-ray band. One object (RX J1225.7+2055) of the four was found to be X-ray weak (α_<ox>〜2.0) during our observations. Compiling values of α_<ox> from a larger NLS1s, we find that, although the sample is small, the α_<ox> distribution suggests that X-ray weakness may occur more frequently among more luminous NLS1s.

• 理論物理学刊行会の論文
• 2004-11-15

著者

• MATSUMOTO Chiho

  Dep. of Physics, Nagoya University

• LEIGHLY Karen

  Department of Physics and Astronomy, The University of Oklahoma

• Matsumoto Chiho

  The University Of Oklahoma

• MATSUMOTO Chiho

  Division of Energy Science, EcoTopia Science Institute, Nagoya University

• LEUGHLY Karen

  The University of Oklahoma

• KAWAGUCHI Toshihiro

  Laboratoire Univers et Theorie, Observatoire de Paris

• Kawaguchi Toshihiro

  Laboratoire Univers Et Theorie Observatoire De Paris

関連論文

• The X-Ray Observatory Suzaku
• The Long Suzaku Observation of MCG-6-30-15(Chapter 10. Super Massive Black Holes, The Extreme Universe in the Suzaku Era)
• Suzaku Observations of the Hard X-Ray Variability of MCG -6-30-15 : the Effects of Strong Gravity around a Kerr Black Hole
• Suzaku Observation of 1H0707-495 : Puzzling Spectral Drop around 7keV(Chapter 10. Super Massive Black Holes, The Extreme Universe in the Suzaku Era)
• Discovery of Short-Timescale Variability of Seyfert 2 Galaxy NGC 6300 with XMM-Newton(Poster)
• Iron Line Properties of the Seyfert 1 Galaxy MCG-6-30-15 Observed with ASCA
• Suzaku Observation of the Metallicity in the Hot Interstellar Medium of the Isolated Elliptical Galaxy NGC 720
• XMM-Newton Observations of Luminous Narrow-Line Seyfert 1 Galaxies(Poster)
• The Long Suzaku Observation of MCG-6-30-15
• Discovery of Short-Timescale Variability of Seyfert 2 Galaxy NGC 6300 with XMM-Newton(Poster)
• XMM-Newton Observations of Luminous Narrow-Line Seyfert 1 Galaxies(Poster)
• Modeling Super-Eddington Active Galactic Nuclei : Optical-X-Ray Continuum Emission from Accretion Flows(Session 4 : Theoretical/Numerial Approaches to the Accretion Physics)
• The Spectral Energy Distributions of Narrow-Line Seyfert 1 Galaxies(Session 7 : NLS1, a Mile Stone)

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