| SDSS J143030.22-001115.1： A Misclassified Narrow-line Seyfert 1 Galaxy with Flat X-ray Spectrum |
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| 作者姓名： | Wei-Hao Bian Quan-Ling Cui and Li-Hua Chao |
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| 作者单位： | Wei-Hao Bian，Quan-Ling Cui and Li-Hua Chao Department of Physics and Institute of Theoretical Physics，Nanjing Normal University，Nanjing 210097 Key Laboratory for Particle Astrophysics，Institute of High Energy Physics，Chinese Academy of Sciences，Beijing 100049 |
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| 基金项目： | Supported by the National Natural Science Foundation of China. |
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| 摘 要： | We used multi-component profiles to model the Hβ and OⅢ]λλ4959,5007 lines of SDSS J143030.22-001115.1, a narrow-line Seyfert 1 galaxy (NLS1) in a sample of 150 NLS1 candidates selected from the Sloan Digital Sky Survey (SDSS), Early Data Release (EDR). After subtracting the Hβ contribution from narrow line regions (NLRs), we found that its full width half maximum (FWHM) of broad Hβ line is nearly 2900km s~(-1) , significantly larger than the customarily adopted criterion of 2000 km s~(-1) . With its weak Fe Ⅱ multiples, we believe that SDSS J143030.22-001115.1 should not be classified as a genuine NLS1. When we calculate the virial black hole masses of NLS1s, we should use the Hβ linewidth after subtracting the NLR component.
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| 关 键 词： | galaxies: active—galaxies: emission lines—galaxies: nuclei—galaxies: Seyfert—galaxies:individual: J143030.22-001115.1 |
SDSS J143030.22-001115.1: A Misclassified Narrow-line Seyfert 1 Galaxy with Flat X-ray Spectrum |
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| Wei-Hao Bian,Quan-Ling Cui and Li-Hua Chao.SDSS J143030.22-001115.1: A Misclassified Narrow-line Seyfert 1 Galaxy with Flat X-ray Spectrum[J].Chinese Journal of Astronomy and Astrophysics,2006,6(3):281-286. |
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| Authors: | Wei-Hao Bian Quan-Ling Cui Li-Hua Chao |
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| Institution: | [1]Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210097 [2]Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy ofSciences, Beijing 100049 |
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| Abstract: | |
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| Keywords: | galaxies: active - galaxies: emission lines - galaxies: nuclei - galaxies:Seyfert- galaxies:individual: J143030 22-001115 1 |
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