| Re-Identification of the 'Enigmatic' X-ray Source 1RXS J114003.0+124112 |
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| 作者姓名： | Tigran Movsessian |
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| 作者单位： | Byurakan Astrophysical |
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| 基金项目： | Supported by the National Natural Science Foundation of China. |
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| 摘 要： | The ROSAT X-ray source 1RXS J114003.0 124112 was identified as a starburst galaxy at redshift 0.177 by He et al. The authors also noted that the source is almost two orders of magnitude brighter in X-ray than the X-ray-brightest starburst galaxy and it seems to be in a merging system, making this source an enigmatic system demanding further observations. Here we report a re-identification of 1RXS J114003.0 124112 using observations on the 2.6m telescope at Byurakan Astrophysical Observatory, Armenia and the SDSS data. The results indicate that the starburst activity is associated with the brighter object of the system, while the fainter object is a typical Seyfert 1 galaxy at a different redshift (0.282). Therefore, the two objects are not in a merging system, and the Seyfert 1 galaxy naturally accounts for the high X-ray flux. Three more objects reside in the vicinity, but they are all too faint to be responsible for the high X-ray flux.
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Re-Identification of the 'Enigmatic' X-ray Source 1RXS J114003.0+124112 |
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| Tigran Movsessian.Re-Identification of the ''''Enigmatic'''' X-ray Source 1RXS J114003.0+124112[J].Chinese Journal of Astronomy and Astrophysics,2006,6(4). |
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| Authors: | Jiang-Hua Wu Tigran Movsessian Yang Chen Xiang-Tao He Xu Zhou Jun Ma |
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| Abstract: | The ROSAT X-ray source 1RXS J114003.0 124112 was identified as a starburst galaxy at redshift 0.177 by He et al. The authors also noted that the source is almost two orders of magnitude brighter in X-ray than the X-ray-brightest starburst galaxy and it seems to be in a merging system, making this source an enigmatic system demanding further observations. Here we report a re-identification of 1RXS J114003.0 124112 using observations on the 2.6m telescope at Byurakan Astrophysical Observatory, Armenia and the SDSS data. The results indicate that the starburst activity is associated with the brighter object of the system, while the fainter object is a typical Seyfert 1 galaxy at a different redshift (0.282). Therefore, the two objects are not in a merging system, and the Seyfert 1 galaxy naturally accounts for the high X-ray flux. Three more objects reside in the vicinity, but they are all too faint to be responsible for the high X-ray flux. |
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| Keywords: | galaxies: active - galaxies: Seyfert - galaxies: starburst - X-rays: individual (1RXS J114003 0 124112) |
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